Table 2.

Relationships between bone mass and cam morphology, determined by generalised estimating equations

		Model 1		Model 2		Model 3
Exposure	Outcome	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value
Max total hip BMD in g/cm2	Cam	1.12 (0.92–1.36)	0.25	1.09 (0.89–1.33)	0.40	0.88 (0.68–1.13)	0.31
L1 BMD in g/cm2	Cam	1.03 (0.84–1.25)	0.79	0.98 (0.80–1.20)	0.84	0.86 (0.67–1.09)	0.21
HBM status	Cam	0.59 (0.41–0.86)	6.5 × 10–3	0.97 (0.63–1.51)	0.90	0.66 (0.38–1.13)	0.13

Model 1 = unadjusted; Model 2 = age and sex adjusted; Model 3 = adjusted for sex, age, weight, height and adolescent activity

Odds ratios are per SD increase in BMD or the odds in HBM individuals compared to non-HBM individuals

Abbreviations: HBM High bone mass, BMD Bone mineral density, OR Odds ratio, CI 95% confidence interval