TABLE II.

Effect of Risk Factors for Hip Fracture, Adjusted for Age and Total Hip Bone Mineral Density

Risk Factor	No. for Whom Data Available	Hazard Ratio (95% Confidence Interval)	P Value
Total hip bone mineral density (per 1 standard deviation decrease*)	8049	2.11 (1.94 to 2.29)	<0.001
Humeral fracture	8049	1.83 (1.32 to 2.53)	<0.001
Non-humeral fracture	8049	1.43 (1.20 to 1.72)	<0.001
Height at age of 25 yr (per 10 cm)	7904	1.41 (1.24 to 1.61)	<0.001
Depth perception (per 10 times standard deviation of 4 Howard-Dolman optical distance scores)	7851	1.43 (1.13 to 1.82)	0.003
Weight gain since age of 25 yr (per 10 kg)	7823	0.94 (0.85 to 1.04)	0.2
Maternal history of hip fracture after age of 50 yr	6153	1.33 (1.06 to 1.66)	0.013
Estrogen use	8048	1.09 (0.86 to 1.40)	0.5
Use of long-acting benzodiazepines at baseline	8008	0.98 (0.75 to 1.23)	0.9
Self-reported health status (on a scale of 1-5)	8049	1.33 (1.20 to 1.46)	<0.001
Walking for exercise	8049	0.85 (0.73 to 0.99)	0.04
Standing or walking <4 hr/day	8046	1.27 (1.04 to 1.55)	0.02
Use of arms to rise from chair	8046	1.37 (1.12 to 1.67)	0.002
History of falls	8049	1.38 (1.18 to 1.61)	<0.001

^*1 standard deviation = 0.133 g/cm². Total hip bone mineral density was adjusted for age only.