Table 4.
Relationship of preconception health conditions and health behaviors with infant gestational age, National Longitudinal Study of Adolescent Health, Waves III–IV, 2001–2008.
| Mothers | Fathers | |||||||
|---|---|---|---|---|---|---|---|---|
| Bivariate | Multivariate | Bivariate | Multivariate | |||||
| Estimate, 95% CI | p | Estimate, 95% CI | p | Estimate, 95% CI | p | Estimate, 95% CI | p | |
|
| ||||||||
| Health Conditions | ||||||||
| Ever diagnosed with diabetes | ||||||||
| No | (ref) | -- | (ref) | (ref) | ||||
| Yes | −0.26 (−2.19, 1.67) | 0.79 | -- | −0.80 (−1.65, 0.05) | 0.06 | −0.86 (−1.57, − 0.14) | 0.02 | |
| High blood pressure | ||||||||
| No | (ref) | -- | (ref) | -- | ||||
| Yes | 0.23 (−0.94, 1.41) | 0.70 | -- | 0.51 (−0.11, 1.13) | 0.10 | -- | ||
| Depression scale (range: 0–9) | −0.38 (−0.81, 0.06) | 0.09 | −0.38 (−0.81, 0.06) | 0.09 | −0.12 (−0.35, 0.11) | 0.30 | -- | |
| BMI category | ||||||||
| Normal weight | (ref) | -- | (ref) | -- | ||||
| Overweight | −.20 (−1.69, 1.30) | 0.40 | -- | −0.19 (−1.30, 0.91) | 0.37 | -- | ||
| Obese | −.32 (−1.43, 0.77) | 0.28 | -- | −0.39 (−1.71, 0.94) | 0.28 | -- | ||
| Health Behaviors | ||||||||
| Alcohol consumption, last month | ||||||||
| Once a month or less | (ref) | -- | (ref) | -- | ||||
| More often | 0.29 (−0.49, 1.07) | 0.47 | -- | −0.10 (−0.96, 0.77) | 0.83 | -- | ||
| Current smoker | ||||||||
| No | (ref) | -- | (ref) | -- | ||||
| Yes | 0.42 (−0.45, 1.29) | 0.34 | -- | −0.31 (−1.20, 0.59) | 0.50 | -- | ||
| Marijuana use, last year | ||||||||
| No | (ref) | -- | (ref) | -- | ||||
| Yes | 1.08 (−0.44, 2.61) | 0.16 | -- | 0.41 (−0.43, 1.25) | 0.34 | -- | ||
| Use of other drugs, last year | ||||||||
| No | (ref) | -- | (ref) | -- | ||||
| Yes | −0.55 (−2.58, 1.47) | 0.59 | -- | −0.31 (−1.99, 1.37) | 0.72 | -- | ||
| Days/week eating fast food (typical) | −0.04 (−0.25, 0.17) | 0.70 | -- | −0.16 (−0.32, − 0.01) | 0.04 | −0.16 (−0.32, − 0.00) | 0.04 | |
| Bouts of physical activity per week | 0.04 (−0.04, 0.12) | 0.33 | -- | 0.02 (−0.04, 0.07) | 0.53 | -- | ||
Note. Models control for maternal and paternal demographic factors (age at birth, race, education, receipt of welfare, and immigration status) as well as pregnancy and design characteristics (infant sex, initiation of prenatal care, parity, time between Wave III interview and conception, and relationship type at Wave III). BMI = body mass index; CI = confidence interval.