Table 2 Disordered eating and self-harm at 16 (mean age: 16.7 years) in adolescents according to body mass index at age 7 (mean age: 7.6 years) or body image at age 10 (mean age: 10.7 years) (imputed data, n = 5193).
Females | Males | ||||||
|---|---|---|---|---|---|---|---|
Variable | Category | Total, No. (not imputed) | No. (row %) of adolescents with outcome | Imputed prevalence (95% CI) (imputed data, n = 2734) | Total, No. (not imputed) | No. (row %) of adolescents with outcome | Imputed prevalence (95% CI) (imputed data, n = 2459) |
Models with body mass index at age 7 (mean age: 7.6 years) as the explanatory variable | |||||||
Outcome: Disordered eating | |||||||
Body size | Normal weight | 1347 | 437 (32.4%) | 32.9% (30.6–35.5%) | 1046 | 74 (7.1%) | 8.3% (6.8–10.3%) |
Underweight | 143 | 26 (18.2%) | 18.1% (12.8–25.5%) | 99 | 6 (6.1%) | 6.9% (3.3–14.1%) | |
Overweight | 300 | 118 (39.3%) | 40.6% (35.4–46.4%) | 128 | 23 (18.0%) | 17.2% (11.9–24.8%) | |
Outcome: Self-harm | |||||||
Body size | Normal weight | 1374 | 185 (13.5%) | 13.3% (11.7–15.0%) | 1063 | 57 (5.4%) | 5.4% (4.2–6.8%) |
Underweight | 149 | 20 (13.4%) | 13.5% (9.1–20.1%) | 104 | 5 (4.8%) | 5.5% (2.5–12.0%) | |
Overweight | 303 | 51 (16.8%) | 19.0% (15.2–23.8%) | 136 | 11 (8.1%) | 8.5% (4.9–14.8%) | |
Models with body image at age 10 (mean age: 10.7 years) as the explanatory variable | |||||||
Outcome: Disordered eating | |||||||
Body image | Satisfaction | 1249 | 367 (29.4%) | 29.6% (27.2–32.3%) | 971 | 62 (6.4%) | 7.3% (5.8–9.3%) |
Dissatisfaction (desire to be larger) | 119 | 27 (22.7%) | 22.2% (16.1–30.8%) | 138 | 12 (8.7%) | 9.3% (5.5–15.7%) | |
Dissatisfaction (desire to be smaller) | 526 | 227 (43.2%) | 43.3% (39.4–47.7%) | 227 | 36 (15.9%) | 16.3% (12.2–21.8%) | |
Outcome: Self-harm | |||||||
Body image | Satisfaction | 1282 | 162 (12.6%) | 13.0% (11.3–15.0%) | 989 | 51 (5.2%) | 5.1% (3.9–6.7%) |
Dissatisfaction (desire to be larger) | 119 | 21 (17.7%) | 16.6% (11.3–24.5%) | 140 | 10 (7.1%) | 7.6% (4.3–13.1%) | |
Dissatisfaction (desire to be smaller) | 529 | 87 (16.5%) | 16.5% (13.7–19.9%) | 236 | 16 (6.8%) | 6.9% (4.4–10.9%) | |
