Table 1 Prevalence of labor and delivery characteristics from maternal interview, birth certificates, and medical record data, IHIPS
Characteristic | Maternal interview (n = 2709) | Birth certificate (n = 2709) | Medical records (n = 1976) |
|---|---|---|---|
Infant male sex | 50.5 | – | 50.5 |
Low birth weight | 19.8 | 17.8 | 21.7 |
Preterm birth | 29.2 | 28.1 | 29.2 |
Post-term birth | 9.8 | 9.7 | 10.4 |
Pregnancy weight gain | 97.0 | 98.5 | 78.6 |
Vaginal delivery | 73.8 | 72.9 | 72.7 |
Labor induction | – | 21.8 | 33.2 |
Smoking during pregnancy | 11.3 | 12.9 | – |
Alcohol use during pregnancy | 5.5 | 1.0 | – |
Race/ethnicity | |||
Non-Hispanic white | 88.4 | 90.2 | – |
Black | 5.5 | 5.6 | – |
Asian | 3.4 | 3.7 | – |
Hispanic | 2.3 | 2.8 | – |