Table 1.
Choices of Lk for the primary analysis.
| Interval (k) | Confounders |
|---|---|
| Baseline (L0) | maternal BMI (<25, 25–29, ≥30 kg/m2), college graduate (yes, no), maternal smoking during pregnancy (yes, no), white race/ethnicity (yes, no), annual household income (>$70,000, ≤$70,000), and paternal BMI (<25, 25–29, ≥30 kg/m2). |
| Late pregnancy (L1) | SSB intake during early pregnancy (tertiles), caloric intake during early pregnancy (tertiles) |
| 3 years (L2) | average SSB intake during early and late pregnancy (tertiles), average caloric intake during early and late pregnancy (tertiles) caloric intake at age 2 years (tertiles) birthweight for gestational age z-score (tertiles) BMI z-score at age 3 (tertiles) TV watching at age 3 years (<1.6 vs ≥1.6 hours/week) |
| 4 years (L3) | Average SSB intake during early and late pregnancy (tertiles) SSB intake at 3 years (<1.5 servings/week vs. ≥1.5 servings/week) average caloric intake during early and late pregnancy (tertiles) average caloric intake at age 2 and 3 years (tertiles) birthweight for gestational age z-score (tertiles) BMI z-score at age 3 (tertiles) average hours of TV watching at age 3 and 4 years (tertiles) |
| 5 years (L4) | average SSB intake during early and late pregnancy (tertiles), cumulative average SSB intake at 3 and 4 years (tertiles) average caloric intake during early and late pregnancy (tertiles) average caloric intake at age 2 and 3 years (tertiles) birthweight for gestational age z-score (tertiles) BMI z-score at age 3 (tertiles) average hours of TV watching at age 3 ,4 and 5 years (tertiles) |
| 6 years (L5) | average SSB intake during early and late pregnancy (tertiles) cumulative average SSB intake at 3, 4, and 5 years (tertiles) average caloric intake during early and late pregnancy (tertiles) average caloric intake at age 2 and 3 years (tertiles) birthweight for gestational age Z score (tertiles) BMI z-score at age 3 (tertiles), average hours of TV watching at age 3, 4, 5, and 6 years (tertiles) |