Table 3.

Association of weight control behavior at age 18 y with body dissatisfaction and perceived parent opinion by sex, 1993 Pelotas Birth Cohort

	Boys			Girls
	Adjusted OR	95%CI	p value	Adjusted OR	95%CI	p value
Outcome category: trying to lose weight versus no attempt
Dissatisfaction at 15 y (ref = satisfied)
Thinner than ideal	0.5	.3–0.9	.026	0.6	.4–.9	.025
Fatter than ideal	1.4	.8–2.5	.249	1.7	1.3–2.4	.001
Dissatisfaction at 11 y (ref = satisfied)
Thinner than ideal	0.7	.4–1.2	.199	0.8	.5–1.2	.243
Fatter than ideal	1.2	.7–2.1	.487	1.7	1.2–2.4	.002
Perceived parent opinion at 11 y (ref = normal)
Thin	1.2	.7–1.9	.535	0.7	.5–1.0	.026
Fat	2.7	1.3–5.3	.005	0.9	.5–1.5	.754
Change in BMI between ages 11 and 15 y	1.3	1.1–1.5	.001	1.2	1.1–1.3	<.001
Wealth at 11 y				1.2	1.0–1.3	.005
Outcome category: trying to gain weight versus no attempt
Dissatisfaction at 15 y (ref = satisfied)
Thinner than ideal	1.4	1.0–2.0	.064	2.2	1.5–3.3	<.001
Fatter than ideal	0.8	.5–1.6	.582	0.6	.3–1.2	.140
Dissatisfaction at 11 y (ref = satisfied)
Thinner than ideal	0.8	.6–1.2	.269	1.4	.9–2.1	.155
Fatter than ideal	0.9	.5–1.4	.622	0.4	.2–0.8	.008
Perceived parent opinion at 11 y (ref = normal)
Thin	1.4	1.0–2.0	.051	1	.7–1.5	.906
Fat	1.0	.4–2.2	.918	0.8	.3–2.1	.722
Change in BMI between ages 11 and 15 y	0.9	.8–1.1	.336	0.8	.7–0.9	.002
Wealth at 11 y				1.1	1.0–1.2	.261

BMI = body mass index; CI = confidence interval; OR = odds ratio.