BRIEF REPORTS: PDF OnlyReproducibility and Validity of Maternal Recall of Pregnancy-Related EventsTomeo, Catherine A.; Rich-Edwards, Janet W.; Michels, Karin B.; Berkey, Catherine S.; Hunter, David J.; Frazier, A. Lindsay; Willett, Walter C.; Buka, Stephen L.Author Information From the Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School; Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care; Department of Maternal and Child Health, Harvard School of Public Health; Department of Epidemiology, Harvard School of Public Health; Department of Health Policy and Management, Harvard School of Public Health; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School; and Department of Nutrition, Harvard School of Public Health, Boston, MA. Epidemiology: November 1999 - Volume 10 - Issue 6 - p 774-776 Free Abstract We assessed the reproducibility and validity of a questionnaire that asks mothers to recall pregnancy-related events from thirty or more years ago. Among 146 women who completed the questionnaire twice, responses were highly reproducible for pre-pregnancy height and weight (r = 0.95), pregnancy complications (r = 0.74), substance use (r = 0.80), preterm delivery (r = 0.82), birthweight (r = 0.94), and breastfeeding (r = 0.89). Among 154 women whose questionnaire responses were compared to data collected during their pregnancies, recall was highly accurate for height (r = 0.90), pre-pregnancy weight (r = 0.86), birthweight (r = 0.91), and smoking (sensitivity = 0.86, specificity = 0.94). These findings suggest that long-term maternal recall is both reproducible and accurate for many factors related to pregnancy and delivery. (Epidemiology 1999; 10:774–777) © 1999 Lippincott Williams & Wilkins, Inc.