Odds ratios (OR) and 95% confidence intervals (CI) for odds of obesity in only children by family size<b>.</b>

*<p>Including first-born,</p>1<p>Adjusted for birth weight, birth year,</p>2<p>Adjusted for maternal age when giving birth, sex, maternal BMI (age 13 years),</p>3<p>Adjusted for father’s social class, n₁ = number in the CSHRR, n₂ = number in the DB.