BMC Musculoskeletal Disorders

Table 2 Multiple linear regression models predicting changes in distal tibia and tibial mid-shaft bone characteristics

From: Physical function and lean body mass as predictors of bone loss after hip fracture: a prospective follow-up study

	Fractured side				Non-fractured side
Distal tibia	vBMD_TOT (n = 58)		BSI (n = 58)		vBMD_TOT (n = 59)		BSI (n = 56)
Distal tibia	B (SE)	p	B (SE)	p	B (SE)	p	B (SE)	p
Lean body mass	.152 (0.06)	.010	.136 (0.12)	.258	.151 (0.06)	.010	.152 (0.10)	.126
SPPB^a	−1.44 (0.64)	.028	−3.09 (1.33)	.023	−1.34 (0.64)	.040	−3.06 (1.11)	.007
Walking outdoors^b	−2.05 (0.74)	.009	−3.62 (1.53)	.024	−2.67 (0.74)	<.001	−5.69 (1.28)	<.001
	R² = .236	<.001	R² = .182	.006	R² = .363	<.001	R² = .428	<.001
Tibial midshaft	vBMD_CO (n = 57)		SSI (n = 58)		vBMD_CO (n = 58)		SSI (n = 57)
Tibial midshaft	B (SE)	p	B (SE)	p	B (SE)	p	B (SE)	p
Lean body mass	−.025 (0.04)	.531	.171 (0.08)	.042	−.004 (0.04)	.910	.129 (0.07)	.067
SPPB^a	−.538 (0.46)	.247	−2.03 (0.93)	.034	−.193 (0.43)	.655	−.062 (0.78)	.938
Walking outdoors^b	−.371 (0.54)	.485	−0.60 (1.08)	.578	−.356 (0.50)	.476	−.343 (0.90)	.711
	R² = .119	.286	R² = .247	.023	R² = .015	.566	R² = .157	.421

The models were adjusted for age, sex, surgical procedure, number of chronic diseases and use of bisphosphonates at baseline. Sample size reduction due to weighting ranged from 5 to 10%
vBMD_TOT Total volumetric bone mineral density, BSI Compressive bone strength index, vBMD_CO Cortical vBMD, SSI Strength-strain index, SPPB Short Physical Performance Battery
^a0) high performance (score ≥ 7), 1) low performance (score < 7)
^b0) without difficulties/minor difficulty 1) major difficulty/unable

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ISSN: 1471-2474

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