Table 1 Maternal characteristics, prevalence and crude odds ratios (OR) with 95% confidence interval (95% CI) for being born late preterm in the 2004 Pelotas Birth Cohort.
From: Late preterm birth is a risk factor for growth faltering in early childhood: a cohort study
Variables | n | Late preterm births % | Crude OR (95% CI) | p* |
|---|---|---|---|---|
Family income (quintiles) | ||||
1 (lowest) | 609 | 16.8 | 2.16 (1.53; 3.05) | <0.001 |
2 | 630 | 11.1 | 1.34 (0.93; 1.94) | |
3 | 656 | 10.4 | 1.24 (0.86; 1.80) | |
4 | 721 | 10.3 | 1.23 (0.85; 1.76) | |
5 (highest) | 669 | 8.5 | Reference | |
Marital status | 0.754 | |||
Single mother | 513 | 11.7 | 1.05 (0.78; 1.41) | |
With partner | 2772 | 11.2 | Reference | |
Maternal skin color | 0.002 | |||
Black/mixed | 857 | 14.2 | 1.45 (1.15; 1.83) | |
White | 2428 | 10.3 | Reference | |
Maternal schooling (years) | 0.001 | |||
0-4 | 473 | 15.9 | 1.78 (1.32; 2.41) | |
5-8 | 1306 | 11.7 | 1.25 (0.98; 1.60) | |
≥ 9 | 1473 | 9.6 | Reference | |
Maternal age (years) | 0.004 | |||
12-15 | 83 | 19.3 | 2.03 (1.16; 3.57) | |
16-19 | 530 | 14.7 | 1.47 (1.11; 1.94) | |
20-34 | 2216 | 10.5 | 0.89 (0.63; 1.25) | |
≥ 35 | 454 | 9.5 | Reference | |
Maternal height (cm) | 0.222 | |||
< 150 | 194 | 13.9 | 1.30 (0.85; 1.98) | |
≥ 150 | 3057 | 11.1 | Reference | |
Smoking during pregnancy | 0.051 | |||
Yes | 745 | 13.3 | 1.28 (1.00; 1.63) | |
No | 2540 | 10.7 | Reference | |
Type of delivery | 0.365 | |||
Caesarean section | 1507 | 11.8 | 1.11 (0.89; 1.37) | |
Vaginal | 1778 | 10.8 | Reference |