Table 3.

Hazard ratios of hip fracture by an increase of 1 standard deviation (189 ng/ml) of CML level sequentially adjusted for factors associated with hip fractures.

	Hazard ratio	95% confidence interval	P-value
Unadjusted	1.27	1.16, 1.40	<.001
Model 1	1.25	1.13, 1.38	<.001
Model 2	1.18	1.06, 1.31	.003
Model 3	1.17	1.05, 1.31	.004

Model 1 adjusts for age, sex, race, and clinic site.

Model 2 additionally adjusts for smoking, body-mass index, alcohol consumption, prevalent coronary heart disease, physical activity, and estimated glomerular filtration rate.

Model 3 further adjusts for history of falling.