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How Accurately Do Young Adults Recall Childhood Pets? A Validation Study

of Biostatistics and Research Epidemiology, Henry Ford Health System, Detroit, Michigan (Charlotte Nicholas, Ganesa Wegienka, Suzanne Havstad, Christine Cole Johnson); Division of Allergy and Clinical

Gender Differences in Total and Allergen-specific Immunoglobulin E (IgE) Concentrations in a Population-based Cohort from Birth to Age Four Years

to Dr. Christine Cole Johnson, Henry Ford Health Sciences Center , 1 Ford Place, 3E, Detroit, Ml 48202 1 Division of Biostatistics and Research Epidemiology, Henry Ford Health System , Detroit, Ml 2

Is Shorter Always Better? Relative Importance of Questionnaire Length and Cognitive Ease on Response Rates and Data Quality for Two Dietary Questionnaires

In this study, the authors sought to determine the effects of length and clarity on response rates and data quality for two food frequency questionnaires (FFQs): the newly developed 36-page Diet History Questionnaire (DHQ), designed to be cognitively easier for respondents, and a 16-page FFQ developed earlier for the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening...