Table 2.
Association Between Birth Weight and Adolescent/Young Adult Obesity (Longitudinal Cohort), National Longitudinal Study of Adolescent Health, 1994–2002a
| Birth Weight Category, kg | Mother Nonobese (27,497 Observations, 11,285 Individuals) |
Mother Obese (6,060 Observations, 2,478 Individuals) |
||
| IRR | 95% CI | IRR | 95% CI | |
| Low (<2.5) | 1.07 | 0.93, 1.24 | 0.92 | 0.74, 1.14 |
| Normal (2.5–4) | 1.00 | Referent | 1.00 | Referent |
| High (>4) | 1.46 | 1.28, 1.67 | 1.15 | 1.00, 1.34 |
Abbreviations: CI, confidence interval; IRR, incidence rate ratio.
a
IRRs and 95% CIs were obtained from multivariate longitudinal, random-effects Poisson regression models predicting obesity, accounting for sex, age (years; continuous), age squared, race/ethnicity (white, black, Hispanic, or Asian), and parental education (highest level of education achieved by either parent; less than high school graduate, high school graduate, some college, or college graduate).