Table 4 Association of dieting related variables with bone mineral content at age 15 years
From: Dieting is associated with reduced bone mineral accrual in a longitudinal cohort of girls
Model no. | Variable | B | 95% CI | Std β | Semi-partial R2 | p |
|---|---|---|---|---|---|---|
1. | Base model (used in all analyses, R2 = 0.79) | |||||
Height at 15y (cm) | 10.2 | 6.43, 13.9 | 0.26 | 0.22 | < 0.0001 | |
BMC at 9y (g) | 1.13 | 0.95, 1.31 | 0.64 | 0.44 | < 0.0001 | |
BMI percentile at 15y | 3.66 | 2.72, 4.61 | 0.35 | 0.09 | < 0.0001 | |
Breast Tanner score at 9y | −76.4 | −104.7, −48.0 | −0.23 | 0.04 | < 0.0001 | |
Frequency of physical activity at 9y | 0.48 | −2.19, 3.15 | 0.01 | 0.00 | 0.72 | |
2. | Dieting variables (individually tested with base model) | |||||
Ever dieted | −40.8 | −91.3, 9.70 | −0.06 | 0.00 | 0.11 | |
3. | Dieted by 11y | −65.4 | −110.2, −20.7 | −0.12 | 0.01 | 0.005 |
4. | Dieted after 11y (n = 94, excludes early dieters) | 27.8 | −79.2, 23.6 | −0.05 | 0.00 | 0.29 |
5. | Number of weight control strategies used at 11y | −18.2 | −30.4, −6.04 | −0.13 | 0.01 | 0.004 |
6. | DEBQ at 11y | |||||
Restraint | −45.6 | −75.2, −16.1 | −0.13 | 0.01 | 0.003 | |
7. | Disinhibition | −25.2 | −61.3, 10.9 | −0.06 | 0.00 | 0.17 |
8. | chEAT at 11y | |||||
Dieting | −22.5 | −37.6, −7.34 | −0.12 | 0.01 | 0.004 | |
9. | Food Preoccupation | −53.1 | −108.9, 2.70 | −0.08 | 0.01 | 0.06 |
10. | Social Pressure to Eat | −0.09 | −24.0, 23.8 | −0.0003 | 0.00 | 0.99 |
11. | Total score | −5.89 | −11.8, 0.01 | −0.08 | 0.01 | 0.051 |
12. | Weight Concerns at 11y | −68.5 | −108.4, −28.6 | −0.15 | 0.02 | 0.0009 |
13. | Weight-Related Body Esteem at 11y | 31.5 | −1.03, 64.0 | 0.09 | 0.01 | 0.06 |