Table 5 Final models from stepwise regression
From: Dieting is associated with reduced bone mineral accrual in a longitudinal cohort of girls
Variable | B | 95% CI | Std β | Semi-partial R2 | p |
|---|---|---|---|---|---|
Outcome: Change in BMC 9–15 years (R2 = 0.64) | |||||
Change in height from 9 to 15y (cm) | 22.2 | 16.6, 27.7 | 0.56 | 0.11 | < 0.0001 |
Change in weight from 9 to 15y (kg) | 4.94 | 1.93, 7.96 | 0.26 | 0.23 | 0.002 |
BMC at 9y (g) | 0.63 | 0.49, 0.77 | 0.55 | 0.25 | < 0.0001 |
BMI percentile at 15y | 1.93 | 0.81, 3.05 | 0.29 | 0.03 | 0.0009 |
Restraint at 11y | −37.0 | −63.0, −10.9 | −0.16 | 0.02 | 0.006 |
Outcome: BMC at 15 years (R2 = 0.81) | |||||
Height at 15y (cm) | 10.0 | 6.39, 13.7 | 0.25 | 0.23 | < 0.0001 |
BMC at 9y (g) | 1.21 | 1.02, 1.39 | 0.68 | 0.43 | < 0.0001 |
BMI percentile at 15y | 3.94 | 3.01, 4.86 | 0.38 | 0.09 | < 0.0001 |
Breast Tanner score at 9y | −67.6 | −95.6, −39.6 | −0.21 | 0.04 | < 0.0001 |
Weight concerns at 11y | −68.2 | −108.0, −28.4 | − 0.15 | 0.02 | 0.0009 |