T To

Summary

Affiliation: The Hospital for Sick Children
Country: Canada

Publications

  1. pmc Bias-corrected estimator for intraclass correlation coefficient in the balanced one-way random effects model
    Eshetu G Atenafu
    Princess Margaret Hospital, Toronto, Canada
    BMC Med Res Methodol 12:126. 2012
  2. ncbi request reprint A spatial analysis of asthma prevalence in Ontario
    Eric J Crighton
    Environment and Health Analysis Laboratory, Department of Geography, University of Ottawa, Ottawa, ON
    Can J Public Health 103:e384-9. 2012
  3. pmc Is asthma a vanishing disease? A study to forecast the burden of asthma in 2022
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario M5G1X8, Canada
    BMC Public Health 13:254. 2013
  4. pmc The air quality health index and asthma morbidity: a population-based study
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    Environ Health Perspect 121:46-52. 2013
  5. pmc Results from a community-based program evaluating the effect of changing smoking status on asthma symptom control
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada
    BMC Public Health 12:293. 2012
  6. pmc Global asthma prevalence in adults: findings from the cross-sectional world health survey
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Public Health 12:204. 2012
  7. pmc Feasibility of a provincial voluntary reporting system for work-related asthma in Ontario
    Teresa To
    The Hospital for Sick Children, University of Toronto, Toronto, Ontario
    Can Respir J 18:275-7. 2011
  8. pmc Verifying a questionnaire diagnosis of asthma in children using health claims data
    Connie L Yang
    Division of Respiratory Medicine, Hospital for Sick Children, Toronto, Canada
    BMC Pulm Med 11:52. 2011
  9. pmc Determining relative importance of variables in developing and validating predictive models
    Joseph Beyene
    Child Heath Evaluative Sciences, The Hospital for Sick Children, Toronto, Canada
    BMC Med Res Methodol 9:64. 2009
  10. pmc Application of biomedical informatics to chronic pediatric diseases: a systematic review
    Fatemeh Moeinedin
    Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Med Inform Decis Mak 9:22. 2009

Detail Information

Publications81

  1. pmc Bias-corrected estimator for intraclass correlation coefficient in the balanced one-way random effects model
    Eshetu G Atenafu
    Princess Margaret Hospital, Toronto, Canada
    BMC Med Res Methodol 12:126. 2012
    ..Intraclass correlation coefficients (ICCs) are used in a wide range of applications. However, most commonly used estimators for the ICC are known to be subject to bias...
  2. ncbi request reprint A spatial analysis of asthma prevalence in Ontario
    Eric J Crighton
    Environment and Health Analysis Laboratory, Department of Geography, University of Ottawa, Ottawa, ON
    Can J Public Health 103:e384-9. 2012
    ..The objective of this paper is to examine spatial patterns of asthma prevalence in the province of Ontario by age and sex between 2002 and 2006...
  3. pmc Is asthma a vanishing disease? A study to forecast the burden of asthma in 2022
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario M5G1X8, Canada
    BMC Public Health 13:254. 2013
    ..The objective of this study was to use observed population trends data of asthma incidence and prevalence to forecast future disease burden...
  4. pmc The air quality health index and asthma morbidity: a population-based study
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    Environ Health Perspect 121:46-52. 2013
    ..Exposure to air pollution has been linked to the exacerbation of respiratory diseases. The Air Quality Health Index (AQHI), developed in Canada, is a new health risk scale for reporting air quality and advising risk reduction actions...
  5. pmc Results from a community-based program evaluating the effect of changing smoking status on asthma symptom control
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada
    BMC Public Health 12:293. 2012
    ..The objective of this study was to measure the effect of changing smoking status on asthma symptom control and health services use in adults with asthma...
  6. pmc Global asthma prevalence in adults: findings from the cross-sectional world health survey
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Public Health 12:204. 2012
    ..We set out to generate estimates of the global burden of asthma in adults, which may inform the development of strategies to address this common disease...
  7. pmc Feasibility of a provincial voluntary reporting system for work-related asthma in Ontario
    Teresa To
    The Hospital for Sick Children, University of Toronto, Toronto, Ontario
    Can Respir J 18:275-7. 2011
    ....
  8. pmc Verifying a questionnaire diagnosis of asthma in children using health claims data
    Connie L Yang
    Division of Respiratory Medicine, Hospital for Sick Children, Toronto, Canada
    BMC Pulm Med 11:52. 2011
    ..Childhood asthma prevalence is widely measured by parental proxy report of physician-diagnosed asthma in questionnaires. Our objective was to validate this measure in a North American population...
  9. pmc Determining relative importance of variables in developing and validating predictive models
    Joseph Beyene
    Child Heath Evaluative Sciences, The Hospital for Sick Children, Toronto, Canada
    BMC Med Res Methodol 9:64. 2009
    ..However, determination of relative importance of potential predictors and validating the fitted models for their stability, predictive accuracy and generalizability are often overlooked or not done thoroughly...
  10. pmc Application of biomedical informatics to chronic pediatric diseases: a systematic review
    Fatemeh Moeinedin
    Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Med Inform Decis Mak 9:22. 2009
    ..The objective of this study was to conduct a systematic review of the effects of biomedical informatics applications in pediatric chronic diseases...
  11. pmc Examining intra-rater and inter-rater response agreement: a medical chart abstraction study of a community-based asthma care program
    Teresa To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Med Res Methodol 8:29. 2008
    ..To assess the intra- and inter-rater agreement of chart abstractors from multiple sites involved in the evaluation of an Asthma Care Program (ACP)...
  12. pmc How much do health care providers value a community-based asthma care program? A survey to collect their opinions on the utilities of and barriers to its uptake
    Teresa To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Health Serv Res 9:77. 2009
    ..A survey was distributed to health care providers' (HCPs) to collect their opinions on the utilities of and barriers to the uptake of the ACP...
  13. doi request reprint Can a community evidence-based asthma care program improve clinical outcomes?: a longitudinal study
    Teresa To
    Department of Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    Med Care 46:1257-66. 2008
    ..Asthma is associated with significant morbidity. Previous studies highlight significant variations in asthma management approaches within primary care settings where the adoption of published asthma guidelines is typically suboptimal...
  14. ncbi request reprint Health outcomes in low-income children with current asthma in Canada
    T To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    Chronic Dis Can 29:49-55. 2009
    ..Programs seeking to decrease the economic burden of pediatric hospitalizations need to focus on asthma and low-income populations...
  15. doi request reprint Risk factors for repeat adverse asthma events in children after visiting an emergency department
    Teresa To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    Ambul Pediatr 8:281-7. 2008
    ..The aim of this study was to identify risk factors for long-term adverse outcomes in children with asthma after visiting the emergency department (ED)...
  16. ncbi request reprint Case verification of children with asthma in Ontario
    Teresa To
    Population Health Sciences, Research Institute, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8
    Pediatr Allergy Immunol 17:69-76. 2006
    ..By using the results of this study as a starting point, future research will create a cohort of children with asthma to be used for population-based surveillance and research...
  17. doi request reprint The burden of illness experienced by young children associated with asthma: a population-based cohort study
    Teresa To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    J Asthma 45:45-9. 2008
    ..Findings of this study revealed an enormous burden of illness to children with asthma and the healthcare system...
  18. ncbi request reprint What factors are associated with poor developmental attainment in young Canadian children?
    Teresa To
    Population Health Sciences Program, Research Institute, The Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G 1X8
    Can J Public Health 95:258-63. 2004
    ..This study was undertaken to determine the association between poor developmental attainment (PDA) and biological, home environment and socio-demographic factors in a population-based sample of Canadian children...
  19. doi request reprint What is the lifetime risk of physician-diagnosed asthma in Ontario, Canada?
    Teresa To
    Child Health Evaluative Sciences, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8 Canada
    Am J Respir Crit Care Med 181:337-43. 2010
    ..The estimates of risk of developing asthma may help researchers and health planners set research agendas, predict the burden of asthma on society, and target the at-risk population for asthma prevention, management, and control...
  20. doi request reprint Is large birth weight associated with asthma risk in early childhood?
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada
    Arch Dis Child 97:169-71. 2012
    ..To determine the association between large birth weight and the risk of developing asthma in early childhood...
  21. ncbi request reprint Comparison of methods to identify outliers observed in health services small area variation studies
    Teresa To
    Population Health Sciences, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
    Stat Methods Med Res 12:531-46. 2003
    ..The chi2 remains a useful tool in small area variation analysis to 'screen' or flag potential differences beyond chance alone...
  22. doi request reprint Evidence-based performance indicators of primary care for asthma: a modified RAND Appropriateness Method
    Teresa To
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada
    Int J Qual Health Care 22:476-85. 2010
    ..To develop evidence-based performance indicators that measure the quality of primary care for asthma...
  23. ncbi request reprint Is obesity associated with asthma in young children?
    Teresa To
    Population Health Sciences, Research Institute, and the Division of Respiratory Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
    J Pediatr 144:162-8. 2004
    ..The aim of this study was to evaluate the association between obesity and asthma in a population-based sample of Canadian children...
  24. pmc Does access to care affect outcomes of appendicitis in children?--A population-based cohort study
    Teresa To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    BMC Health Serv Res 10:250. 2010
    ..The objective of this study is to use population-based data to measure the associations and to explain the variations of appendectomy rates with population socio-demographic indicators...
  25. doi request reprint Can an evidence-based guideline reminder card improve asthma management in the emergency department?
    Teresa To
    The Hospital for Sick Children, Toronto, Ontario, Canada
    Respir Med 104:1263-70. 2010
    ..This study was conducted to examine whether asthma management in the pediatric emergency department (ED) was improved through the use of an evidence-based acute asthma care guideline reminder card...
  26. ncbi request reprint The burden of asthma: can it be eased? The Ontario record
    Teresa To
    Hospital for Sick Children
    Healthc Q 10:22-4. 2007
  27. ncbi request reprint Biological, social, and environmental correlates of preschool development
    T To
    Population Health Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    Child Care Health Dev 27:187-200. 2001
    ..Social and environmental factors appear to play a larger role among older children. Prospective studies are required to determine the effect of change in risk factor profiles on child development...
  28. ncbi request reprint Risk markers for poor developmental attainment in young children: results from a longitudinal national survey
    Teresa To
    Population Health Sciences Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    Arch Pediatr Adolesc Med 158:643-9. 2004
    ..To evaluate social and environmental determinants of poor developmental attainment among preschool children by means of longitudinal data from a population-based sample of Canadian children...
  29. ncbi request reprint Natural history of dysplasia of the uterine cervix
    P Holowaty
    Faculty of Medicine, Department of Public Health Sciences, University of Toronto, Ontario, Canada
    J Natl Cancer Inst 91:252-8. 1999
    ....
  30. ncbi request reprint Cohort study on circumcision of newborn boys and subsequent risk of urinary-tract infection
    T To
    Population Health Sciences, Research Institute, Hospital for Sick Children, Department of Public Health Sciences, University of Toronto, Ontario, Canada
    Lancet 352:1813-6. 1998
    ..This population-based cohort study followed neonates in Ontario, Canada, prospectively to study the relation between circumcision and subsequent UTI risk...
  31. doi request reprint Neighborhood income and health outcomes in infants: how do those with complex chronic conditions fare?
    Chengning Wang
    Child Health Evaluative Services, The Hospital for Sick Children, Toronto, Ontario, Canada
    Arch Pediatr Adolesc Med 163:608-15. 2009
    ..To quantify the effect of socioeconomic status (SES) on health outcomes during the first year after newborn discharge among infants with complex chronic conditions (CCCs) insured through a universal health plan...
  32. ncbi request reprint Infant hospitalization and maternal depression, poverty and single parenthood - a population-based study
    A Guttmann
    Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
    Child Care Health Dev 30:67-75. 2004
    ..We used population-based survey data to examine the contribution of family sociodemographic and psychodynamic factors to the risk of hospitalization in children under the age of 2 years in Canada...
  33. doi request reprint Increasing incidence of paediatric inflammatory bowel disease in Ontario, Canada: evidence from health administrative data
    E I Benchimol
    The Institute for Clinical Evaluative Sciences, University of Toronto, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M4S 1C5, Canada
    Gut 58:1490-7. 2009
    ..The aim of this study was to validate a case ascertainment definition of paediatric-onset inflammatory bowel disease (IBD) using administrative data and describe its epidemiology in Ontario, Canada...
  34. ncbi request reprint Identifying individuals with physcian diagnosed COPD in health administrative databases
    A S Gershon
    The Hospital for Sick Children, Toronto, Ontario, Canada
    COPD 6:388-94. 2009
    ..This offers a powerful means of generating evidence to inform strategies that optimize the prevention and management of COPD...
  35. doi request reprint Transition to adult care for youths with diabetes mellitus: findings from a Universal Health Care System
    Meranda Nakhla
    Division of Endocrinology and Metabolism, Hospital for Sick Children, Toronto, Ontario, Canada
    Pediatrics 124:e1134-41. 2009
    ....
  36. doi request reprint Survival with tiotropium compared to long-acting Beta-2-agonists in Chronic Obstructive Pulmonary Disease
    Andrea S Gershon
    Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
    COPD 5:229-34. 2008
    ..This result suggests that tiotropium might also be associated with decreased mortality compared to no treatment at all. Randomized placebo-control trials are needed to confirm these findings...
  37. pmc Risk of incarceration of inguinal hernia among infants and young children awaiting elective surgery
    Mohammed Zamakhshary
    Division of General Surgery, The Hospital for Sick Children, Toronto, ON
    CMAJ 179:1001-5. 2008
    ..We also explored the relation between wait times and the use of emergency department services before surgery...
  38. ncbi request reprint Breastfeeding and asthma in young children: findings from a population-based study
    S Dell
    Division of Respiratory Medicine, The Hospital for Sick Children, 555 University Ave, Toronto, Ontario, M5G 1X8, Canada
    Arch Pediatr Adolesc Med 155:1261-5. 2001
    ..More public health efforts should be directed toward increasing the initiation and duration of breastfeeding...
  39. ncbi request reprint Timing of voiding cystourethrogram in the investigation of urinary tract infections in children
    S Mahant
    Department of Paediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
    J Pediatr 139:568-71. 2001
    ..59 (95% CI 0.3-1.2, P >.05). CONCLUSION: The rate of detection of VUR in children with a first episode of UTI does not increase when the VCUG is done early (within the first 7 days of diagnosis) rather than later...
  40. doi request reprint Variations and gaps in management of acute asthma in Ontario emergency departments
    M Diane Lougheed
    Division of Respirology, Department of Medicine, Queen s University, Kingston, Ontario, Canada
    Chest 135:724-36. 2009
    ..We investigated ED management of asthma and differences in practice patterns for pediatric (< 20 years old) and adult (> or = 20 years old) patients in Ontario EDs...
  41. ncbi request reprint Population demographic indicators associated with incidence of pyloric stenosis
    Teresa To
    Population Health Sciences, Research Institute and Departments of Surgery and Pediatrics, Hospital for Sick Children, Toronto, Ontario
    Arch Pediatr Adolesc Med 159:520-5. 2005
    ..To calculate incidence rates of pyloric stenosis (estimated by the rate of pyloromyotomy) among infants in Ontario and determine their association with population sociodemographic indicators...
  42. pmc Systematic evaluation of errors occurring during the preparation of intravenous medication
    Christopher S Parshuram
    Department of Critical Care Medicine, and the Center for Safety Research, Child Health Evaluative Sciences Program, The Research Institute, The Hospital for Sick Children, Toronto, Ont
    CMAJ 178:42-8. 2008
    ..Errors in the concentration of intravenous medications are not uncommon. We evaluated steps in the infusion-preparation process to identify factors associated with preventable medication errors...
  43. ncbi request reprint Persistence and remission in childhood asthma: a population-based asthma birth cohort study
    Teresa To
    Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8, Canada
    Arch Pediatr Adolesc Med 161:1197-204. 2007
    ..To examine and predict the persistence of childhood asthma...
  44. pmc Asthma and allergic disease prevalence in a diverse sample of Toronto school children: results from the Toronto Child Health Evaluation Questionnaire (T-CHEQ) Study
    Sharon D Dell
    Hospital for Sick Children, Toronto, Ontario, Canada
    Can Respir J 17:e1-6. 2010
    ..Asthma is the most common chronic disease in children...
  45. ncbi request reprint The population attributable fraction of asthma among Canadian children
    Elinor Simons
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON
    Can J Public Health 102:35-41. 2011
    ..We calculated the population attributable fraction (PAF) of Canadian childhood asthma due to modifiable environmental exposures, in order to estimate their relative contributions to asthma development based on the current literature...
  46. ncbi request reprint Insulin sensitivity and beta-cell function in protease inhibitor-treated and -naive human immunodeficiency virus-infected children
    Ari Bitnun
    Division of Infectious Diseases, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8
    J Clin Endocrinol Metab 90:168-74. 2005
    ....
  47. ncbi request reprint Correlates of methylphenidate use in Canadian children: a cross-sectional study
    Alice Charach
    Department of Psychiatry, Hospital for Sick Children, Toronto, Ontario
    Can J Psychiatry 51:17-26. 2006
    ..This study aimed to estimate the prevalence of methylphenidate (MPH) use among Canadian children aged 2 to 11 years, from 1994-1995 to 1998-1999 and to identify sociodemographic, child, and parent-family correlates are identified...
  48. ncbi request reprint Evaluating the Hyperactivity/Inattention Subscale of the National Longitudinal Survey of Children and Youth
    Alice Charach
    Faculty of Medicine, University of Toronto, Toronto, Ontario
    Health Rep 21:43-50. 2010
    ..However, a threshold on the scale has not been identified for use as an epidemiological marker for clinically significant disorder...
  49. ncbi request reprint Does pediatric surgical specialty training affect outcome after Ramstedt pyloromyotomy? A population-based study
    Jacob C Langer
    Population Health Sciences, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
    Pediatrics 113:1342-7. 2004
    ..We wished to determine whether there are any differences in outcome when this procedure is done by subspecialist pediatric general surgeons as compared with general surgeons...
  50. doi request reprint Neighborhood socioeconomic status and homicides among children in urban Canada
    Catherine S Birken
    Division of Pediatric Medicine, Hospital for Sick Children, 555 University Ave, Toronto, Ontario, Canada
    Pediatrics 123:e815-9. 2009
    ..We sought to determine the influence of neighborhood income on homicides among children living in urban Canada...
  51. ncbi request reprint Physician and population determinants of rates of middle-ear surgery in Ontario
    P C Coyte
    Department of Health Policy, Management, and Evaluation, Second Floor, McMurrich Bldg, Faculty of Medicine, University of Toronto, Toronto, Ontario, M5S 1A8 Canada
    JAMA 286:2128-35. 2001
    ..Small-area variations in surgical rates raise concerns about access to care, treatment appropriateness, and the quality and cost of care...
  52. doi request reprint Trends in asthma prevalence and incidence in Ontario, Canada, 1996-2005: a population study
    Andrea S Gershon
    Institute for Clinical Evaluative Sciences, Toronto, Ontario M4N 3M5, Canada
    Am J Epidemiol 172:728-36. 2010
    ..This is attributable, in part, to an increase in the incidence of asthma in children. Effective clinical and public health strategies are needed to prevent and manage asthma in the population...
  53. pmc Trends in rates of death from unintentional injury among Canadian children in urban areas: influence of socioeconomic status
    Catherine S Birken
    Division of Paediatric Medicine and the Paediatric Outcomes Research Team, The Hospital for Sick Children, and the Department of Paediatrics, University of Toronto, Toronto, Ont
    CMAJ 175:867. 2006
  54. ncbi request reprint Effect of subspecialty training and volume on outcome after pediatric inguinal hernia repair
    Steven H Borenstein
    Department of Surgery, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
    J Pediatr Surg 40:75-80. 2005
    ..The aim of this study was to determine if there are any differences in outcome when this procedure is performed by subspecialist pediatric surgeons when compared with general surgeons...
  55. ncbi request reprint Determinants of survival in children with congenital abnormalities: a long-term population-based cohort study
    Mohammad M Agha
    Pediatric Oncology Group of Ontario, Toronto, Canada
    Birth Defects Res A Clin Mol Teratol 76:46-54. 2006
    ..In particular, it is not clear whether other birth characteristics, apart from birth defects, have any role in their mortality...
  56. doi request reprint Antenatal steroid therapy for fetal lung maturation: is there an association with childhood asthma?
    Jason D Pole
    Department of Public Health Sciences, University of Toronto, Toronto, Ontario, Canada
    J Asthma 46:47-52. 2009
    ..This study was designed to test the hypothesis that fetal exposure to corticosteroids in the antenatal period is an independent risk factor for the development of asthma in childhood...
  57. ncbi request reprint Effect of subspecialty training on outcome after pediatric appendectomy
    Stig Somme
    Department of Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada M5G 1X8
    J Pediatr Surg 42:221-6. 2007
    ..Some studies have suggested a better outcome in patients managed by pediatric surgeons as compared with general surgeons...
  58. ncbi request reprint Canadian National Breast Screening Study-2: 13-year results of a randomized trial in women aged 50-59 years
    A B Miller
    Department of Public Health Sciences, University of Toronto, Canada
    J Natl Cancer Inst 92:1490-9. 2000
    ..Breast self-examination was taught to all participants...
  59. ncbi request reprint Neonatal short bowel syndrome: population-based estimates of incidence and mortality rates
    Paul W Wales
    Division of General Surgery, The Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
    J Pediatr Surg 39:690-5. 2004
    ..No accurate population estimates of incidence and mortality exist because of differences in definition, follow-up, and regional referral patterns...
  60. ncbi request reprint Antibiotic prescribing for upper respiratory tract infection: the importance of diagnostic uncertainty
    Sandra R Arnold
    Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
    J Pediatr 146:222-6. 2005
    ..We determined the influence on antibiotic prescribing of clinical features that may increase concern about possible bacterial infection (age, appearance, fever) in children with URI...
  61. ncbi request reprint Postasphyxial hypoxic-ischemic encephalopathy in neonates: outcome prediction rule within 4 hours of birth
    Prakesh S Shah
    Department of Paediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
    Arch Pediatr Adolesc Med 160:729-36. 2006
    ..To construct and validate a model and derive a simple rule that is usable in any birth location for the prediction of outcome of term infants with severe asphyxia...
  62. ncbi request reprint The Ontario Asthma Regional Variation Study: emergency department visit rates and the relation to hospitalization rates
    M Diane Lougheed
    Division of Respirology, Department of Medicine, Queen s University, Kingston, ON, Canada
    Chest 129:909-17. 2006
    ..Hospitalization rates for asthma vary more than threefold across regions of Ontario. It is not known whether this variation is primarily due to regional differences in the rate of emergency department (ED) visits or hospital admissions...
  63. ncbi request reprint Development of pediatric comorbidity prediction model
    Derek Tai
    University of Toronto, Ontario, Canada
    Arch Pediatr Adolesc Med 160:293-9. 2006
    ..To develop a comorbidity model for children that can be used with hospital discharge administrative databases...
  64. doi request reprint Trends in chronic obstructive pulmonary disease prevalence, incidence, and mortality in ontario, Canada, 1996 to 2007: a population-based study
    Andrea S Gershon
    Institute for Clinical Evaluation Sciences, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
    Arch Intern Med 170:560-5. 2010
    ..Whether this amount has been increasing, decreasing, or stable over time remains unknown...
  65. ncbi request reprint Spontaneous clearance of childhood hepatitis C virus infection
    L T F Yeung
    Rouge Valley Health System, Centenary Health Centre, Galaxy 12 Child and Teen Clinic, Scarborough, ON, Canada
    J Viral Hepat 14:797-805. 2007
    ..3 years. The rate of spontaneous clearance of childhood HCV infection was comparable between transfusional and nontransfusional cases. If clearance occurs, it tends to occur early in infection, at a younger age...
  66. ncbi request reprint Effectiveness of emergency department asthma management strategies on return visits in children: a population-based study
    Astrid Guttmann
    Institute for Clinical Evaluative Sciences, G Wing, Sunnybrook and Women s College Health Sciences Centre, 2075 Bayview Ave, Toronto, Ontario, Canada M4N 3M5
    Pediatrics 120:e1402-10. 2007
    ..Emergency departments play an important role in the care of children with asthma. Emergency department return-visit rates provide a measure of the quality of acute asthma care...
  67. ncbi request reprint Volume matters: physician practice characteristics and immunization coverage among young children insured through a universal health plan
    Astrid Guttmann
    Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
    Pediatrics 117:595-602. 2006
    ..We studied the association between immunization coverage for a cohort of 2-year-old children covered by a universal health insurance plan and pediatric provider and other health services characteristics...
  68. ncbi request reprint Congenital abnormalities and childhood cancer
    Mohammad M Agha
    Pediatric Oncology Group of Ontario, Toronto, Ontario, Canada
    Cancer 103:1939-48. 2005
    ..Although the study of a genetic predisposition to cancer in children remains in the early stages, congenital abnormalities could provide essential information for mapping predisposing lesions in children with cancer...
  69. ncbi request reprint Recent trends in hospitalization for diabetic ketoacidosis in ontario children
    Jacqueline R Curtis
    Department of Pediatrics, Division of Endocrinology, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
    Diabetes Care 25:1591-6. 2002
    ..To investigate trends and geographic variation in diabetic ketoacidosis (DKA) hospitalization rates among children in Ontario from 1991 to 1999...
  70. ncbi request reprint Occurrence and impact of unanticipated variation in intravenous methotrexate dosing
    Christopher S Parshuram
    Department of Critical Care Medicine, Hospital for Sick Children Toronto, ON, Canada
    Ann Pharmacother 40:805-11. 2006
    ..These preparation-associated errors occur despite routine safety procedures. As of April 5, 2006, the clinical impact of these errors had not been evaluated...
  71. doi request reprint A small p-value from an observed data is not evidence of adequate power for future similar-sized studies: a cautionary note
    Eshetu G Atenafu
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    Contemp Clin Trials 30:155-7. 2009
    ..In addition to being misused or perhaps even abused at post-statistical analysis stage of making scientific inference and interpretations, p-values can also be a source of confusion at the design stage...
  72. doi request reprint Validation of a health administrative data algorithm for assessing the epidemiology of diabetes in Canadian children
    Astrid Guttmann
    Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
    Pediatr Diabetes 11:122-8. 2010
    ..To validate a case definition of pediatric diabetes using administrative health data and describe trends in incidence and prevalence over time in Ontario, Canada...
  73. ncbi request reprint The Canadian National Breast Screening Study-1: breast cancer mortality after 11 to 16 years of follow-up. A randomized screening trial of mammography in women age 40 to 49 years
    Anthony B Miller
    University of Toronto, Toronto, Canada
    Ann Intern Med 137:305-12. 2002
    ..The efficacy of breast cancer screening in women age 40 to 49 years remains controversial...
  74. ncbi request reprint Factors determining the need for operative reduction in children with intussusception: a population-based study
    Stig Somme
    Department of Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada M5G 1X8
    J Pediatr Surg 41:1014-9. 2006
    ..The objective of this study is to determine if children presenting to a nonteaching hospital were at greater risk for operative reduction of intussusception than those presenting to a teaching hospital...
  75. ncbi request reprint Antenatal steroid therapy and childhood asthma: Is there a possible link?
    Jason D Pole
    Department of Public Health Sciences, University of Toronto, Toronto, Ontario, Canada
    Med Hypotheses 70:981-9. 2008
    ....
  76. ncbi request reprint The development of a comorbidity index with physical function as the outcome
    Dianne L Groll
    Department of Surgery, Queen s University, Kingston, Ontario, Canada
    J Clin Epidemiol 58:595-602. 2005
    ..The objective of this study was to develop a self-administered Functional Comorbidity Index with physical function as the outcome...
  77. ncbi request reprint Gender and outpatient mental health service use
    Anne E Rhodes
    Department of Psychiatry, University of Toronto, Canada
    Soc Sci Med 54:1-10. 2002
    ..These findings raise questions about gender differences in illness and reporting behaviours and the health care system in its preferential treatment of women and those with Mood/Anx...
  78. ncbi request reprint Effect on antibiotic prescribing of repeated clinical prompts to use a sore throat score: lessons from a failed community intervention study
    Warren J McIsaac
    Mt Sinai Family Medicine Centre, 600 University Ave, Suite 413, Toronto, Ont, Canada M5G 1X5
    J Fam Pract 51:339-44. 2002
    ..This study sought to determine whether repeated clinical prompts to use a scoring approach could help family physicians lower antibiotic use in patients with a sore throat...
  79. pmc Antibiotics for lower respiratory tract infections. Still too frequently prescribed?
    Warren J McIsaac
    Ray D Wolfe Department of Family Medicine, Mt Sinai Hospital, Toronto, Ont
    Can Fam Physician 50:569-75. 2004
    ..To examine how Canadian family physicians currently prescribe for lower respiratory tract infections (LRTIs)...
  80. ncbi request reprint Mammography benefit in the Canadian National Breast Screening Study-2: a model evaluation
    Adriana J Rijnsburger
    Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
    Int J Cancer 110:756-62. 2004
    ..6-34.1%. Enrolled women had above average risk. Screening sensitivity in both arms was high. A benefit of mammography screening is supported by our modeling of the CNBSS-2 results...
  81. ncbi request reprint Pulmonary artery occlusion pressure estimation: how confident are anesthesiologists?
    Michael J Jacka
    Department of Anaesthesia and Critical Care, University of Alberta
    Crit Care Med 30:1197-203. 2002
    ..Our objective was to determine the ability of practicing cardiovascular anesthesiologists to estimate pulmonary artery occlusion pressure accurately and measure their confidence in this estimate...