Research Topics
| Mark A CanfieldSummaryAffiliation: Epidemiology and Disease Surveillance Unit Country: USA Publications
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Detail Information
Publications
Maternal characteristics associated with the dietary intake of nitrates, nitrites, and nitrosamines in women of child-bearing age: a cross-sectional studyJohn S Griesenbeck
Department of Epidemiology and Biostatistics, School of Rural Public Health, Texas A and M Health Science Center, College Station, TX, 77843 1266, USA
Environ Health 9:10. 2010..Very little information is available on intake of nitrates, nitrites, and nitrosamines and factors related to increased consumption of these compounds...
National estimates and race/ethnic-specific variation of selected birth defects in the United States, 1999-2001Mark A Canfield
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas 78756, USA
Birth Defects Res A Clin Mol Teratol 76:747-56. 2006..In the United States, birth defects affect approximately 3% of all births, are a leading cause of infant mortality, and contribute substantially to childhood morbidity...
Epidemiologic features and clinical subgroups of anotia/microtia in TexasMark A Canfield
Texas Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX 78714 9347, USA
Birth Defects Res A Clin Mol Teratol 85:905-13. 2009..Few studies have investigated the epidemiologic features of clinically defined subgroups of anotia/microtia...- Folic acid awareness and supplementation among Texas women of childbearing ageMark A Canfield
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, 1100 West 49th Street, Austin, TX 78756, USA
Prev Med 43:27-30. 2006.... - Changes in the birth prevalence of selected birth defects after grain fortification with folic acid in the United States: findings from a multi-state population-based studyMark A Canfield
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, 78756, USA
Birth Defects Res A Clin Mol Teratol 73:679-89. 2005..Using data reported by states to the National Birth Defects Prevention Network, we examined whether folic acid fortification might have decreased the prevalence of other specific birth defects... - Anencephaly and spina bifida among Hispanics: maternal, sociodemographic, and acculturation factors in the National Birth Defects Prevention StudyMark A Canfield
Birth Defects Epidemiology and Surveillance Branch, MC 1964, Texas Department of State Health Services, P O Box 149347, Austin, TX 78714 9347, USA
Birth Defects Res A Clin Mol Teratol 85:637-46. 2009.... - The prevalence and predictors of anencephaly and spina bifida in TexasMark A Canfield
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX, USA
Paediatr Perinat Epidemiol 23:41-50. 2009..Hispanic ethnicity was an important predictor for anencephaly, along with sex, maternal age, parity and border residence. However, only border residence and delivery year were significant predictors for spina bifida... - Do foreign- and U.S.-born mothers across racial/ethnic groups have a similar risk profile for selected sociodemographic and periconceptional factors?Tunu A Ramadhani
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, USA
Birth Defects Res A Clin Mol Teratol 91:823-30. 2011..S.-born control mothers across race/ethnic groups... - Residential mobility patterns and exposure misclassification in epidemiologic studies of birth defectsMark A Canfield
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX 78756, USA
J Expo Sci Environ Epidemiol 16:538-43. 2006.... - Dieting to lose weight and occurrence of neural tube defects in offspring of Mexican-American womenLucina Suarez
Environmental Epidemiology and Disease Registries Section, Department of State Health Services, Austin, TX 78756, USA
Matern Child Health J 16:844-9. 2012..5, 95% CI = 0.6, 4.0). No effect was seen among dieting women who were consuming at least 1.0 mg/day of folate (OR = 1.1, CI = 0.3, 4.5). Maternal dieting prior to conception may increase the risk of NTDs in offspring... - Are birth defects among Hispanics related to maternal nativity or number of years lived in the United States?Tunu Ramadhani
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
Birth Defects Res A Clin Mol Teratol 85:755-63. 2009..Literature on the risk of birth defects among foreign- versus U.S.-born Hispanics is limited or inconsistent. We examined the association between country of birth, immigration patterns, and birth defects among Hispanic mothers... - Folic acid supplementation among diabetic, overweight, or obese women of childbearing ageAmy P Case
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX 78756, USA
J Obstet Gynecol Neonatal Nurs 36:335-41. 2007..To examine whether obese, overweight, or diabetic women were equally likely to supplement with folic acid as normal-weight or nondiabetic women... - Maternal smoking, passive tobacco smoke, and neural tube defectsLucina Suarez
Texas Center for Birth Defects Research and Prevention, Texas Department of State Health Services, Austin, TX 78714, USA
Birth Defects Res A Clin Mol Teratol 91:29-33. 2011..In this study, we examined the relation between NTDs and maternal exposures to cigarette smoke, including passive smoke exposure... - Should aggregate US Census data be used as a proxy for individual household income in a birth defects registry?Lisa Marengo
Texas Department of State Health Services, Birth Defects Epidemiology and Surveillance Branch, MC 1964, P O Box 149347, Austin, TX 78714 9347, USA
J Registry Manag 38:9-14. 2011..We compared 1999 income data from the National Birth Defects Prevention Study (NBDPS) with 2000 Census block group income data for the residence location of these same mothers... - Methods for developing useful estimates of the costs associated with birth defectsAmy P Case
Texas Department of State Health Services, Birth Defects Epidemiology and Surveillance Branch, Mail Code 1964, P O Box 149347, Austin, TX 78714 9347, USA
Birth Defects Res A Clin Mol Teratol 85:920-4. 2009..However, comprehensive cost-of-illness estimates for this condition may be too outdated, too general, or not applicable to individual states' environments... - Awareness and attitudes regarding prenatal testing among Texas women of childbearing ageAmy P Case
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX 78756, USA
J Genet Couns 16:655-61. 2007..This study demonstrates the variability of knowledge and beliefs and confirms the importance of taking time to understand an individual's personal beliefs, knowledge and attitudes about prenatal diagnosis... - Pilot test of prenatal surveillance for birth defects in South TexasMary K Ethen
Texas Center for Birth Defects Research and Prevention, Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
Birth Defects Res A Clin Mol Teratol 79:788-91. 2007..Objectives of the study were to determine how many cases may be missing from the registry as a result, and to assess the feasibility and utility of prenatal surveillance for birth defects, through a pilot test in one region of Texas... - Proximity of pediatric genetic services to children with birth defects in TexasAmy P Case
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas 78714 9347, USA
Birth Defects Res A Clin Mol Teratol 82:795-8. 2008.... - Maternal serum homocysteine and risk for neural tube defects in a Texas-Mexico border populationMarilyn Felkner
Texas Department of State Health Services, Austin, Texas
Birth Defects Res A Clin Mol Teratol 85:574-81. 2009..The authors examined independent and joint associations of serum homocysteine, B12, and folate and red blood cell (RBC) folate with NTD-affected pregnancies... - Time trends in the prevalence of birth defects in Texas 1999-2007: real or artifactual?Peter H Langlois
Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, USA
Birth Defects Res A Clin Mol Teratol 91:902-17. 2011..Few studies have reported time trends for total birth defects or for a comprehensive range of phenotypes... - Medical records vs. interview responses: a comparative analysis of selected variables for linked birth defect casesTunu A Ramadhani
Texas Birth Defects Monitoring Division, Texas Department of Health, Austin 78756 3180, USA
Birth Defects Res A Clin Mol Teratol 70:592-6. 2004..Data pertaining to birth defects are subject to certain limitations depending on the collection method. This study compares the agreement of data from medical records and maternal interviews... - Impact of including elective pregnancy terminations before 20 weeks gestation on birth defect ratesMary K Ethen
Texas Birth Defects Monitoring Division, Texas Department of Health, 1100 West 49th Street, Austin, TX 78756, USA
Teratology 66:S32-5. 2002..To assess the impact of defects among elective terminations before 20 weeks gestation, data from a birth defects registry that does include terminations before 20 weeks gestation were analyzed... - Alcohol consumption by women before and during pregnancyMary K Ethen
Texas Department of State Health Services, Birth Defects Epidemiology and Surveillance Branch, Austin, TX 78756, USA
Matern Child Health J 13:274-85. 2009..To determine the prevalence, patterns, and predictors of alcohol consumption prior to and during various intervals of pregnancy in the U.S... - Frequency of holoprosencephaly in the International Clearinghouse Birth Defects Surveillance Systems: searching for population variationsEmanuele Leoncini
Centre of the International Clearinghouse for Birth Defects Surveillance and Research, Roma, Italy
Birth Defects Res A Clin Mol Teratol 82:585-91. 2008.... - Prepregnancy obesity as a risk factor for structural birth defectsD Kim Waller
School of Public Health, The University of Texas at Houston, Houston, TX 77030, USA
Arch Pediatr Adolesc Med 161:745-50. 2007..To describe the relation between maternal obesity, overweight and underweight status, and 16 categories of structural birth defects... - Trends of selected malformations in relation to folic acid recommendations and fortification: an international assessmentLorenzo D Botto
Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA
Birth Defects Res A Clin Mol Teratol 76:693-705. 2006..Fortification appears to be effective in reducing NTDs. The effect on other birth defects remains unclear... - Maternal obesity, gestational diabetes, and central nervous system birth defectsJames L Anderson
The University of Texas, Houston Health Science Center, School of Public Health, Houston, Texas, USA
Epidemiology 16:87-92. 2005..Our objective was to evaluate whether gestational diabetes influenced the association of prepregnancy maternal obesity and risks for CNS birth defects... - Folic acid awareness and use among women with a history of a neural tube defect pregnancy--Texas, 2000-2001Mark A Canfield
MMWR Recomm Rep 51:16-9. 2002..4 mg of folic acidper day; and 2) if a woman at high risk is planning a pregnancy, she should consult her physician regarding taking the higher dose of 4.0 mg per day... - Trends in the postfortification prevalence of spina bifida and anencephaly in the United StatesSheree L Boulet
National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA
Birth Defects Res A Clin Mol Teratol 82:527-32. 2008.... - Ethnic and gender patterns for the five congenital disorders in Texas from 1992 through 1998Jamison E Strahan
University of Texas Medical Branch at Galveston, USA
Tex Med 98:80-6. 2002..Results suggest that unidentified mutations and environmental factors may exist that contribute to these patterns. This warrants further investigation to determine possible modifiable risk factors for populations with higher prevalence...