Table 1

Combined analysis (meta-analysis) of the main findings of the studies by Halldorsson et al.2 and Englund-Ogge et al.1 on the association between sugar-sweetened, low-calorie-sweetened beverages and the risk of preterm delivery

Beverage consumptionRelative risk (95% CI)
Sugar-sweetenedLow-calorie-sweetened
Non-users1*1*
<1 serving/week0.97 (0.91–1.05)1.05 (0.98–1.12)
1–6 servings/week0.93 (0.87–0.99)1.09 (1.02–1.16)
1 serving/day1.03 (0.93–1.14)1.18 (1.06–1.32)
2–3 servings/day1.06 (0.96–1.16)1.14 (1.02–1.26)
≥4 servings/day1.23 (1.06–1.42)1.25 (1.09–1.43)
  • The Halldorsson et al. study examined carbonated and non-carbonated drinks pooled from separate strata.

  • *Reference category.

  • CI, confidence interval.