Table 2. The effect of BW on the risk of early childhood overweight/obesity at each check-up period comparing to the NBW group.

Check-up period, mon	OR (95% CI)a
	LBW	HBW
4–6	0.65 (0.56–0.75)	1.70 (1.50–1.93)
9–12	0.73 (0.64–0.84)	1.88 (1.66–2.13)
18–24	0.80 (0.70–0.92)	2.01 (1.77–2.27)
30–36	0.72 (0.62–0.82)	2.25 (1.99–2.54)
42–48	0.64 (0.56–0.75)	2.18 (1.93–2.46)
54–60	0.65 (0.56–0.75)	2.35 (2.09–2.65)
66–72	0.81 (0.71–0.92)	2.10 (1.86–2.37)

BW = birth weight, OR = odds ratio, CI = confidence interval, LBW = low birth weight, HBW = high birth weight, NBW = normal birth weight.

^aORs and its associated 95% CIs from multinomial logistic regression model after adjusting for sex, socioeconomic status, and breastfeeding behavior.