. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Bone. 2011 Mar 16;48(6):1239–1245. doi: 10.1016/j.bone.2011.03.682

Table 1.

Descriptive statistics for subjects with incident hip fracture and the age- and sex-matched controls (approximately two per subject). Statistical significance of differences between cases and controls was established using Student's t-test.

Sex	Measure	Controls					Cases					P
Sex	Measure	N^a	Min	Max	Mean	SD	N^a	Min	Max	Mean	SD	P
Male	age (years)	97	70	90	79.6	5.2	51	71	93	80.0	5.6	0.66
	height (cm)	97	162.4	190.5	174.9	6.6	50	159.2	187.1	174.6	5.9	0.74
	weight (kg)	97	52.4	135.0	82.6	14.8	51	50.3	114.0	79.1	13.9	0.16
	aBMD (g/cm²)	97	0.511	1.505	0.867	0.155	51	0.330	1.025	0.720	0.147	<0.001
	F_Fall (N)	94	638	4257	1692	671	45	276	2254	1226	476	<0.001
	F_Stance (N)	94	4772	21,784	10,587	2949	45	3123	12,898	8081	2011	<0.001
Female	age (years)	152	67	92	79.3	5.7	77	67	93	79.5	5.9	0.75
	height (cm)	151	139.3	173.0	159.2	5.6	75	145.1	173.4	159.6	6.1	0.64
	weight (kg)	151	37.2	112.0	68.3	13.7	75	39.2	111.2	64.5	15.1	0.057
	aBMD (g/cm²)	152	0.338	1.239	0.696	0.156	76	0.392	0.961	0.605	0.121	<0.001
	F_Fall (N)	145	314	3071	1088	476	71	353	1945	844	333	<0.001
	F_Stance (N)	145	2978	16,330	7221	2347	71	3085	10,675	6028	1586	<0.001

Differences in the number of data points for each measure within each group are due to missing data and/or CT scans that were inadequate for performing finite element analysis.