Vital and Health Statistics Series 2, Number 157: Adjusting National Health and Nutrition Examination Survey Sample Weights for Women of Childbearing Age. Data Evaluation and Methods Research.

摘要

Maternal risk factors have been tabulated for women of childbearing age using defined age ranges. However, statistics for factors strongly related to age may be overly influenced by values for the youngest and oldest women in a range, because pregnancies are most likely for ages 20-35.