Table 3.
Crude and adjusted analysis of association between becoming obese or ceasing to be obese from 11 to 15 years of age, and independent variables in girls: 1993 Pelotas, Brazil, birth cohort study, 2004–2005 and 2008–2009 follow-ups
| Variable | Became obese (n = 57) |
Ceased to be obese (n = 71) |
||
|---|---|---|---|---|
| Crude analysis PR (95% CI)a | Adjusted analysis PR (95% CI)a | Crude analysis PR (95% CI) | Adjusted analysis PR (95% CI)a | |
| Household assets index (tertiles) | p = .01b | p = .35b | ||
| 1° (lowest) | 1.0 | 1.0 | ||
| 2° | .4 (.2–.6) | 1.7 (.9–3.0) | ||
| 3° | .4 (.2–.9) | 1.4 (.8–2.5) | ||
| Adolescent's perception of own weight | p < .001c | p < .001c | p < .001c | p < .001c |
| Fat | 4.9 (2.8–8.0) | 5.2 (2.9–9.1) | 6.7 (3.8–11.8) | 6.6 (3.8–11.7) |
| Normal | 1.0 | 1.0 | 1.0 | 1.0 |
| Thin | .1 (0–.1) | .1 (0–1.0) | .2 (0–1.4) | .9 (0–1.3) |
| Body dissatisfaction | p < .001c | p < .001c | p < .001c | p < .001c |
| Wished to have a smaller silhouette | 2.9 (1.6–5.3) | 2.9 (1.6–5.3) | 12.8 (5.2–31.7) | 12.9 (5.2–31.7) |
| Satisfied with body image | 1.0 | 1.0 | 1.0 | 1.0 |
| Wished to have a larger silhouette | .5 (.2–1.5) | .5 (.2–1.4) | 0 | .4 (0–3.2) |
| Weight loss dieting | p < .001c | p < .001c | p < .001c | p < .001c |
| No | 1.0 | 1.0 | 1.0 | 1.0 |
| Yes | 3.1 (1.7–5.9) | 3.3 (1.7–6.3) | 5.4 (3.5–8.7) | 5.4 (3.4–8.6) |
CI = confidence interval; PR = prevalence ratio.
a
Adjusted for Household Assets index at 11 years of age.
b
Wald test for linear trend.
c
Wald test for heterogeneity.