A cross-sectional and 6-year follow-up study of associations between leisure time physical activity and vertebral fracture in adults

Table 5 Associations between change in physical activity levels and vertebral fracture

Exercise and physical exertion	Vertebral fractures (n)	Unadjusted OR	95% CI	Adjusted for age OR	95% CI	Multiple adjusted OR^a	95% CI
Female (n = 636)
Physical activity level
Sed. unchanged	3	Reference		Reference		Reference
Reduced activity	6	0.87	0.21–3.67	0.79	0.18–3.34	0.81	0.18–3.62
Increased activity	8	1.08	0.27–4.31	1.18	0.29–4.71	1.24	0.29–5.26
Active unchanged	47	1.62	0.48–5.44	1.56	0.46–5.28	1.54	0.43–5.50
Age (years)				1.07	1.03–1.12	1.05	1.00–1.10
BMD left hip (100 g/cm²)						0.97	0.94–0.99
Osteoporosis current/previous						3.61	1.06–12.31
Male (n = 495)
Physical activity level
Sed. unchanged	4	Reference		Reference		Reference
Reduced activity	14	1.62	0.50–5.25	1.58	0.48–5.18	2.05	0.57–7.42
Increased activity	17	1.72	0.54–5.46	1.75	0.55–5.61	2.23	0.63–7.87
Active unchanged	36	1.47	0.49–4.37	1.38	0.46–4.13	1.81	0.54–6.02
Age (years)				1.05	1.01–1.09	1.04	1.00–1.08
BMD left hip (100 g/cm²)						0.97	0.94–0.99
Osteoporosis current/previous						14.09	1.13–176.20

^aAdjusted for age, height, weight, smoking, osteoporosis, osteoporosis medication, left hip total BMD, and use of hormones (women only)

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