Bone Mass and Strength and Fall-Related Fractures in Older Age

Table 1

Baseline mean (SD) characteristics for bone and physical fitness and adjusted mean difference in percent (95% CI) between fallers without (Nonfracture) and with fractures (fracture).

Baseline	Nonfracture N = 120	Fracture N = 67		(Anova)
Age (years)	62.5 (5.4)	63.3 (5.4)		0.35
Height (cm)	161.1 (5.7)	160.9 (5.3)		0.79
Weight (kg)	68.1 (10.3)	66.4 (9.4)		0.26
DXA			Adjusted mean difference^1	(Ancova)^1
Femoral neck BMD (g/cm^2)	0.823 (0.129)	0.776 (0.098)	4.5 (0.3 to 8.6)	0.035
Trochanter BMD (g/cm^2)	0.907 (0.129)	0.859 (0.098)	4.3 (0.5 to 8.0)	0.028
Distal radius BMD (g/cm^2)	0.358 (0.059)	0.316 (0.053)	11.1 (6.3 to 16.1)	<0.001
pQCT, distal tibia
Bone mineral content, BMC (g)	647.9 (84.4)	604.8 (83.1)	6.0 (2.2 to 9.7)	0.002
Trabecular density (g/cm^3)	224.1 (28.6)	214.0 (33.3)	4.1 (0.1 to 8.2)	0.053
Section modulus (mm^3)	855.2 (287.0)	752.4 (250.0)	9.9 (0.1 to 19.7)	0.049
pQCT, tibial shaft
Bone mineral content, BMC (g)	768.9 (86.6)	735.02 (86.8)	3.6 (0.4 to 6.8)	0.027
Cortical density (g/cm^3)	1097.7 (32.2)	1095.2 (30.1)	0.2 (−0.6 to 1.0)	0.64
Cortical area (mm^2)	280.0 (28.7)	268.3 (29.3)	3.4 (0.6 to 6.2)	0.019
Section modulus (mm^3)	1658.3 (211.4)	1606.6 (242.2)	2.3 (−1.4 to 6.1)	0.22
Physical performance
Figure-8 running (s)	17.7 (2.1)	18.0 (2.1)	−1.9 (−4.9 to 1.1)	0.20
Jumping test (cm)	18.7 (4.1)	18.3 (4.0)	2.6 (−3.4 to 8.7)	0.40
Grip strength, right hand (kg)	30.5 (4.8)	29.2 (4.1)	0.1 (0.0 to 0.2)	0.14
Isometric leg-extensor strength (N/kg)	18.3 (3.4)	17.9 (3.5)	2.5 (−2.3 to 7.2)	0.31
VO2max (ml/min/kg)	28.2 (5.7)	28.6 (5.8)	−0.6 (−4.7 to 3.4)	0.77

¹Adjusted for age, height, and weight.