Table 1.
Baseline demographics and smoking characteristics
| Late Pregnancy Smoking Status
|
||||
|---|---|---|---|---|
| Overall | Abstainer (n=180) | Smoker (n=208) | P value | |
| Demographics | ||||
| Age, years | 24.5 ± 5.2 | 25.5 ± 5.2 | 23.6 ± 4.9 | <.001 |
| Caucasian, % | 95 | 97 | 94 | .26 |
| Education, % | <.001 | |||
| > 12 years | 29 | 42 | 18 | |
| 12 years | 47 | 47 | 47 | |
| < 12 years | 24 | 11 | 34 | |
| Primigravida, % | 60 | 67 | 55 | .01 |
| Married, % | 25 | 31 | 20 | .02 |
| Private insurance, % | 30 | 41 | 20 | <.001 |
| BMI, kg/m2 | 26.0 ± 6.6 | 25.6 ± 6.5 | 26.3 ± 6.7 | .35 |
| Overweight or obese, % | 44 | 39 | 47 | .13 |
| Smoking Characteristics | ||||
| Age first started smoking cigarettes | 15.2 ± 3.1 | 16.1 ± 3.0 | 14.4 ± 3.0 | <.001 |
| Cigarettes per day pre-pregnancy | 16.6 ± 9.3 | 12.5 ±7.4 | 20.2 ± 9.3 | <.001 |
| % Attempted to quit pre-pregnancy | 70 | 79 | 62 | <.001 |
BMI = body mass index
Results are reported as mean ± standard deviation unless otherwise noted.
p-values derived from t-tests for continuous measures and chi-square test for categorical measures.