Onchee Yu

Summary

Affiliation: Group Health Cooperative
Country: USA

Publications

  1. pmc Statin use and female reproductive organ cancer risk in a large population-based setting
    Onchee Yu
    Group Health Center for Health Studies, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    Cancer Causes Control 20:609-16. 2009
  2. doi Classification algorithms to improve the accuracy of identifying patients hospitalized with community-acquired pneumonia using administrative data
    O Yu
    Biostatistics Unit, Group Health Research Institute, Seattle, WA 98101, USA
    Epidemiol Infect 139:1296-306. 2011
  3. ncbi Hepatitis B vaccine and risk of autoimmune thyroid disease: a Vaccine Safety Datalink study
    Onchee Yu
    Group Health Center for Health Studies, Seattle, WA 98101 1448, USA
    Pharmacoepidemiol Drug Saf 16:736-45. 2007
  4. doi Adapting group sequential methods to observational postlicensure vaccine safety surveillance: results of a pentavalent combination DTaP-IPV-Hib vaccine safety study
    Jennifer C Nelson
    Biostatistics Unit, Group Health Research Institute, 1730 Minor Avenue, Suite 1600, Seattle, WA 98101, USA
    Am J Epidemiol 177:131-41. 2013
  5. doi Prospective assessment of the effect of needle length and injection site on the risk of local reactions to the fifth diphtheria-tetanus-acellular pertussis vaccination
    Lisa A Jackson
    Group Health Center for Health Studies, University of Washington, Seattle, Washington, USA
    Pediatrics 121:e646-52. 2008
  6. pmc Frequency of medically attended adverse events following tetanus and diphtheria toxoid vaccine in adolescents and young adults: a Vaccine Safety Datalink study
    Lisa A Jackson
    Group Health Research Institute, Seattle WA, USA
    BMC Infect Dis 9:165. 2009
  7. doi Impact of the introduction of pneumococcal conjugate vaccine on rates of community acquired pneumonia in children and adults
    Jennifer C Nelson
    Group Health Center for Health Studies, Seattle, WA, United States
    Vaccine 26:4947-54. 2008
  8. pmc Frequent antibiotic use and second breast cancer events
    Heidi S Wirtz
    Departments of Pharmacy, Biostatistics, Epidemiology, and Health Services, University of Washington, Seattle, WA 98101, USA
    Cancer Epidemiol Biomarkers Prev 22:1588-99. 2013
  9. pmc Patient-reported discontinuation of endocrine therapy and related adverse effects among women with early-stage breast cancer
    Erin J Aiello Bowles
    Group Health Research Institute, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    J Oncol Pract 8:e149-57. 2012
  10. ncbi The burden of community-acquired pneumonia in seniors: results of a population-based study
    Michael L Jackson
    Center for Health Studies, Group Health Cooperative, University of Washington, Seattle, USA
    Clin Infect Dis 39:1642-50. 2004

Detail Information

Publications38

  1. pmc Statin use and female reproductive organ cancer risk in a large population-based setting
    Onchee Yu
    Group Health Center for Health Studies, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    Cancer Causes Control 20:609-16. 2009
    ..We evaluated the association between statin use and endometrial as well as ovarian cancer risks...
  2. doi Classification algorithms to improve the accuracy of identifying patients hospitalized with community-acquired pneumonia using administrative data
    O Yu
    Biostatistics Unit, Group Health Research Institute, Seattle, WA 98101, USA
    Epidemiol Infect 139:1296-306. 2011
    ....
  3. ncbi Hepatitis B vaccine and risk of autoimmune thyroid disease: a Vaccine Safety Datalink study
    Onchee Yu
    Group Health Center for Health Studies, Seattle, WA 98101 1448, USA
    Pharmacoepidemiol Drug Saf 16:736-45. 2007
    ..To test the hypothesis that hepatitis B vaccine increases the risk of ATD, we conducted a case-control study, within the Vaccine Safety Datalink project...
  4. doi Adapting group sequential methods to observational postlicensure vaccine safety surveillance: results of a pentavalent combination DTaP-IPV-Hib vaccine safety study
    Jennifer C Nelson
    Biostatistics Unit, Group Health Research Institute, 1730 Minor Avenue, Suite 1600, Seattle, WA 98101, USA
    Am J Epidemiol 177:131-41. 2013
    ..Although lack of a controlled experiment presents numerous challenges, implementation of group sequential monitoring methods in observational safety surveillance studies is promising and warrants further investigation...
  5. doi Prospective assessment of the effect of needle length and injection site on the risk of local reactions to the fifth diphtheria-tetanus-acellular pertussis vaccination
    Lisa A Jackson
    Group Health Center for Health Studies, University of Washington, Seattle, Washington, USA
    Pediatrics 121:e646-52. 2008
    ....
  6. pmc Frequency of medically attended adverse events following tetanus and diphtheria toxoid vaccine in adolescents and young adults: a Vaccine Safety Datalink study
    Lisa A Jackson
    Group Health Research Institute, Seattle WA, USA
    BMC Infect Dis 9:165. 2009
    ..Local reactions are the most commonly reported adverse events following tetanus and diphtheria toxoid (Td) vaccine and the risk of local reactions may increase with number of prior Td vaccinations...
  7. doi Impact of the introduction of pneumococcal conjugate vaccine on rates of community acquired pneumonia in children and adults
    Jennifer C Nelson
    Group Health Center for Health Studies, Seattle, WA, United States
    Vaccine 26:4947-54. 2008
    ....
  8. pmc Frequent antibiotic use and second breast cancer events
    Heidi S Wirtz
    Departments of Pharmacy, Biostatistics, Epidemiology, and Health Services, University of Washington, Seattle, WA 98101, USA
    Cancer Epidemiol Biomarkers Prev 22:1588-99. 2013
    ..Antibiotic use may be associated with higher breast cancer risk and breast cancer mortality, but no study has evaluated the relation between antibiotic use and second breast cancer events (SBCE)...
  9. pmc Patient-reported discontinuation of endocrine therapy and related adverse effects among women with early-stage breast cancer
    Erin J Aiello Bowles
    Group Health Research Institute, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    J Oncol Pract 8:e149-57. 2012
    ..We conducted a larger self-report evaluation of endocrine therapy discontinuation associated with patient characteristics and therapy-related adverse effects...
  10. ncbi The burden of community-acquired pneumonia in seniors: results of a population-based study
    Michael L Jackson
    Center for Health Studies, Group Health Cooperative, University of Washington, Seattle, USA
    Clin Infect Dis 39:1642-50. 2004
    ....
  11. ncbi Immunogenicity of varying dosages of 7-valent pneumococcal polysaccharide-protein conjugate vaccine in seniors previously vaccinated with 23-valent pneumococcal polysaccharide vaccine
    Lisa A Jackson
    Group Health Center for Health Studies, 1730 Minor Ave, Ste 1600, Seattle, WA 98101, USA
    Vaccine 25:4029-37. 2007
    ..A booster response to the challenge vaccination was not observed. Administration of a 1 ml dose of PnC vaccine is more immunogenic than 0.5 ml of PnPS vaccine in elderly adults previously vaccinated with PnPS vaccine...
  12. pmc A randomized placebo-controlled trial of acetaminophen for prevention of post-vaccination fever in infants
    Lisa A Jackson
    Group Health Research Institute, Seattle, Washington, United States of America
    PLoS ONE 6:e20102. 2011
    ....
  13. pmc Statin use and breast cancer risk in a large population-based setting
    Denise M Boudreau
    Group Health, Center for Health Studies, Suite 1600, 1730 Minor Avenue, Seattle, WA 98101, USA
    Cancer Epidemiol Biomarkers Prev 16:416-21. 2007
    ..Mechanistic studies suggest that 3-hydroxy-3-methylglutaryl CoA inhibitors (statins) reduce the risk of breast cancer. Observational studies offer mixed results...
  14. pmc Statin use and cancer risk: a comprehensive review
    Denise M Boudreau
    Group Health Research Institute, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    Expert Opin Drug Saf 9:603-21. 2010
    ..They are among the most commonly prescribed drugs worldwide. Contrary to early concerns over the carcinogenicity of statins, a growing body of evidence suggests statins may in fact have a chemopreventive potential against cancer...
  15. doi Risk of medically attended local reactions following diphtheria toxoid containing vaccines in adolescents and young adults: a Vaccine Safety Datalink study
    Lisa A Jackson
    Group Health Center for Health Studies, 1730 Minor Ave, Ste 1600, Seattle, WA 98101, United States
    Vaccine 27:4912-6. 2009
    ..In general the risk of medically attended local reactions was low and did not differ with concomitant or sequential administration of diphtheria toxoid containing vaccines...
  16. pmc Administrative data algorithms to identify second breast cancer events following early-stage invasive breast cancer
    Jessica Chubak
    Group Health Research Institute, 1730 Minor Ave, Ste 1600, Seattle, WA 98101, USA
    J Natl Cancer Inst 104:931-40. 2012
    ..An alternative is using administrative health-care data to identify second breast cancer events; however, these algorithms must be validated against a gold standard...
  17. doi Injection site and risk of medically attended local reactions to acellular pertussis vaccine
    Lisa A Jackson
    Group Health Research Institute, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    Pediatrics 127:e581-7. 2011
    ..To assess whether the risk of medically attended local reactions to the fifth dose of the diphtheria and tetanus toxoids and acellular pertussis (DTaP) vaccine varies according to injection site (arm versus thigh)...
  18. pmc Statin use and prostate cancer risk in a large population-based setting
    Denise M Boudreau
    Group Health Center for Health Studies, 1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA
    Cancer Causes Control 19:767-74. 2008
    ..Statins are a commonly used cholesterol-lowering drug, which also have the potential to affect cancer risk and progression. Results from previous studies offer mixed conclusions...
  19. pmc Comparative safety of cardiovascular medication use and breast cancer outcomes among women with early stage breast cancer
    Denise M Boudreau
    Group Health Research Institute, 1730 Minor Ave, Suite 1600, Seattle, WA, 98101, USA
    Breast Cancer Res Treat 144:405-16. 2014
    ..A majority of CVD medications evaluated in this study appear safe with respect to SBCE, but ACEI and BB use warrant further evaluation. The study presented is one example of the questions that can be addressed using the COMBO cohort...
  20. pmc Bone mineral density screening among women with a history of breast cancer treated with aromatase inhibitors
    Leslie Spangler
    Group Health Research Institute, Seattle, WA 98101, USA
    J Womens Health (Larchmt) 22:132-40. 2013
    ..Understanding adherence to bone mineral density (BMD) screening after breast cancer (BC) treatment with aromatase inhibitors (AI) is an important first step in preventing or treating BC-related osteoporosis...
  21. doi Concomitant use of cholinesterase inhibitors and anticholinergics: prevalence and outcomes
    Denise M Boudreau
    Department of Pharmacy, University of Washington, Seattle, WA, USA
    J Am Geriatr Soc 59:2069-76. 2011
    ..To determine the extent of concomitant use of cholinesterase inhibitor (ChI) and anticholinergic (ACh) medications and the clinical consequences of dual use in a population-based setting...
  22. ncbi Prophylaxis with acetaminophen or ibuprofen for prevention of local reactions to the fifth diphtheria-tetanus toxoids-acellular pertussis vaccination: a randomized, controlled trial
    Lisa A Jackson
    Center for Health Studies, Group Health Cooperative, Seattle, WA 98101, USA
    Pediatrics 117:620-5. 2006
    ..It is not known whether these reactions can be prevented with prophylactic use of acetaminophen or ibuprofen...
  23. ncbi Safety of varying dosages of 7-valent pneumococcal protein conjugate vaccine in seniors previously vaccinated with 23-valent pneumococcal polysaccharide vaccine
    Lisa A Jackson
    Center for Health Studies, Group Health Cooperative, 1730 Minor Ave, Ste 1600, Seattle, WA 98101, USA
    Vaccine 23:3697-703. 2005
    ..Fever was uncommon and did not vary by study group. The rate of local reactions increased with higher volumes of PCV and the rate following 2.0 ml of PCV was comparable to that following 0.5 ml PPV...
  24. ncbi Effectiveness of pneumococcal polysaccharide vaccine in older adults
    Lisa A Jackson
    Center for Health Studies, Group Health Cooperative, Seattle, WA 98101, USA
    N Engl J Med 348:1747-55. 2003
    ..In a large population of older adults, we assessed the effectiveness of the pneumococcal vaccine...
  25. doi Accuracy of ICD-9 codes to identify nonunion and malunion and developing algorithms to improve case-finding of nonunion and malunion
    Denise M Boudreau
    Group Health Research Institute, Seattle, WA 98101, USA
    Bone 52:596-601. 2013
    ..To evaluate the accuracy of using ICD-9 codes to identify nonunions (NU) and malunions (MU) among adults with a prior fracture code and to explore case-finding algorithms...
  26. doi Long-term trends in Chlamydia trachomatis infections and related outcomes in a U.S. managed care population
    Delia Scholes
    Group Health Research Institute, Group Health Cooperative, Seattle, WA 98101, USA
    Sex Transm Dis 39:81-8. 2012
    ..Given recent increasing case rates of Chlamydia trachomatis infection, we evaluated trends in chlamydia rates and related health outcomes in women and men aged 15 to 44 years who were enrolled in a Pacific Northwest health plan...
  27. doi Challenges in the design and analysis of sequentially monitored postmarket safety surveillance evaluations using electronic observational health care data
    Jennifer C Nelson
    Biostatistics Unit, Group Health Research Institute, Seattle, WA 98101, USA
    Pharmacoepidemiol Drug Saf 21:62-71. 2012
    ....
  28. doi Hormone therapy initiation after the Women's Health Initiative
    Katherine M Newton
    Group Health Center for Health Studies, Seattle, WA 98101, USA
    Menopause 15:487-93. 2008
    ..To describe hormone therapy (HT) initiation after the 2002 publication of the Women's Health Initiative...
  29. pmc Population-based ectopic pregnancy trends, 1993-2007
    Britton Trabert
    Department of Epidemiology, University of Washington, Seattle, USA
    Am J Prev Med 40:556-60. 2011
    ..The accuracy of ectopic pregnancy rates based on nationally representative data has been compromised for many years, impairing surveillance and evaluation of the continued public health importance of this condition...
  30. ncbi Efficacy of breast cancer screening in the community according to risk level
    Joann G Elmore
    School of Medicine, Harborview Medical Center, University of Washington, Seattle, WA, USA
    J Natl Cancer Inst 97:1035-43. 2005
    ..The efficacy of breast cancer screening in the community may differ from that suggested by the results of randomized trials, and no data have been available on efficacy among women who have different levels of breast cancer risk...
  31. ncbi Patient-centered medical home demonstration: a prospective, quasi-experimental, before and after evaluation
    Robert J Reid
    Group Health Research Institute, Group Health Cooperative, 1730 Minor Ave, Ste 1600, Seattle, WA 98101, USA
    Am J Manag Care 15:e71-87. 2009
    ..Five design principles guided development of the PCMH changes to staffing, scheduling, point-of-care, outreach, and management...
  32. ncbi A hierarchical non-homogenous Poisson model for meta-analysis of adenoma counts
    Carolyn M Rutter
    Center for Health Studies, Group Health Cooperative, 1730 Minor Ave, Ste 1600 Seattle WA 98101, USA
    Stat Med 26:98-109. 2007
    ..For 1990, the estimated adenoma prevalence among Americans at age 60 is 40.3 per cent for men compared to 29.2 per cent for women...
  33. ncbi Training, quality assurance, and assessment of medical record abstraction in a multisite study
    Lisa M Reisch
    Harborview Medical Center, University of Washington School of Medicine, Seattle, WA 98104 2499, USA
    Am J Epidemiol 157:546-51. 2003
    ..Additionally, a masking study with a subsample of subjects may be a feasible and cost-effective alternative to the time- and cost-intensive methodological approach of masking all medical records...
  34. doi Guideline concordant venous ulcer care predicts healing in a tertiary care Veterans Affairs Medical Center
    Jonathan M Olson
    Department of Veteran s Affairs, Health Services Research and Development, Seattle, WA 98101, USA
    Wound Repair Regen 17:666-70. 2009
    ..52; 95% CI, 1.53-4.16). Guideline concordant venous ulcer care was significantly associated with venous ulcer healing, when provided at 80% or more of patient visits...
  35. ncbi Influenza vaccination is not associated with a reduction in the risk of recurrent coronary events
    Lisa A Jackson
    Center for Health Studies, Group Health Cooperative, Seattle, WA 98101 1448, USA
    Am J Epidemiol 156:634-40. 2002
    ..06, 95% CI: 0.63, 1.78) or inactivity (May through October) (HR = 1.34, 95% CI: 0.76, 2.36). These results suggest that the benefit of influenza vaccine for older adults does not extend to protection against recurrent coronary events...
  36. ncbi A population-based study of bilateral prophylactic mastectomy efficacy in women at elevated risk for breast cancer in community practices
    Ann M Geiger
    Research and Evaluation Department, Southern California Permanente Medical Group, 100 S Los Robles, Pasadena, CA 91101, USA
    Arch Intern Med 165:516-20. 2005
    ..We studied the efficacy of bilateral prophylactic mastectomy in women with elevated breast cancer risk cared for in community practices...
  37. ncbi Efficacy of prophylactic mastectomy in women with unilateral breast cancer: a cancer research network project
    Lisa J Herrinton
    Cancer Research Network, Division of Research, Northern California Kaiser Permanente, 2000 Broadway Ave, Oakland, CA 94612, USA
    J Clin Oncol 23:4275-86. 2005
    ..We investigated the efficacy of contralateral prophylactic mastectomy (CPM) in reducing contralateral breast cancer incidence and breast cancer mortality among women who have already been diagnosed with breast cancer...
  38. ncbi Incidence of herpes zoster, before and after varicella-vaccination-associated decreases in the incidence of varicella, 1992-2002
    Aisha O Jumaan
    Centers for Disease Control and Prevention, Atlanta, Georgia 30345, USA
    J Infect Dis 191:2002-7. 2005
    ..We assessed the impact that varicella vaccination has on the incidence of varicella and of HZ...