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Gestational age and birthweight, by data source, for singleton births
| Surveya (n = 116 singletons) | Birth recordb (n = 99 singletons) | |
|---|---|---|
| Gestational age, in weeks | ||
| Mean | 38.93 | 38.83 |
| Standard deviation | 2.64 | 2.37 |
| Range | 25.00−42.00 | 25.00−41.00 |
| Birthweight, in grams | ||
| Mean | 3391.10 | 3351.28 |
| Standard deviation | 674.78 | 649.70 |
| Range | 652.04−5414.76 | 660.49−5421.00 |
Based on mother's self-report in the follow-up survey
Based on Pennsylvania birth record
