TABLE 2.
Associations between intake of AS and SS beverages during pregnancy and PTD, <37 completed gestational weeks, in 60,761 women from the Norwegian Mother and Child Cohort Study1
| All | PTD | Unadjusted OR (95% CI) | Adjusted OR2 (95% CI) | Adjusted OR3 (95% CI) | |
| n | % | ||||
| AS beverages | |||||
| Never | 22,229 | 5.0 ± 0.154 | 1 | 1 | 1 |
| <1 serving/wk | 14,919 | 5.1 ± 0.18 | 1.01 (0.92, 1.11) | 1.01 (0.92, 1.11) | 1.01 (0.92, 1.12) |
| 1–6 servings/wk | 13,204 | 5.4 ± 0.20 | 1.08 (0.98, 1.19) | 1.07 (0.97, 1.18) | 1.09 (0.99, 1.20) |
| 1 serving/d | 4309 | 6.0 ± 0.36 | 1.21 (1.05, 1.39) | 1.19 (1.03, 1.37) | 1.20 (1.04, 1.39) |
| 2–3 servings/d | 3998 | 5.2 ± 0.35 | 1.04 (0.90, 1.21) | 0.99 (0.85, 1.16) | 1.01 (0.87, 1.18) |
| ≥4 servings/d | 2102 | 6.0 ± 0.52 | 1.22 (1.00, 1.47) | 1.08 (0.89, 1.32) | 1.12 (0.92, 1.36) |
| P-trend5 | 0.007 | 0.127 | 0.053 | ||
| SS beverages | |||||
| Never | 6155 | 4.7 ± 0.27 | 1 | 1 | 1 |
| <1 serving/wk | 18,082 | 5.2 ± 0.17 | 1.13 (0.98, 1.29) | 1.14 (0.99, 1.31) | 1.15 (1.00, 1.32) |
| 1–6 servings/wk | 24,906 | 5.2 ± 0.14 | 1.11 (0.97, 1.26) | 1.14 (1.00, 1.30) | 1.15 (1.01, 1.32) |
| 1 serving/d | 5832 | 5.6 ± 0.30 | 1.21 (1.03, 1.42) | 1.23 (1.04, 1.46) | 1.25 (1.05, 1.48) |
| 2–3 servings/d | 4148 | 5.5 ± 0.35 | 1.19 (0.99, 1.42) | 1.16 (0.97, 1.40) | 1.19 (0.99, 1.43) |
| ≥4 servings/d | 1638 | 6.8 ± 0.62 | 1.48 (1.18, 1.86) | 1.37 (1.08, 1.74) | 1.41 (1.11, 1.79) |
| P-trend5 | 0.003 | 0.017 | 0.008 |
1
ORs were calculated by using logistic regression models. AS, artificially sweetened; PTD, preterm delivery; SS, sugar-sweetened.
2
Adjusted for previous preterm delivery, maternal age, prepregnancy BMI, height, total energy intake, marital status, parity, smoking during pregnancy, and education.
3
Additional adjustments for the other type of beverage.
4
Percentage ± SE (all such values).
5
P values for linear trend were obtained by incorporating the variable as a linear term in logistic regression models.