The effect on behavior and bone mineral density of individualized bone mineral density feedback and educational interventions in premenopausal women: a randomized controlled trial [NCT00273260]

Table 3 Effect of behavior change on BMD change

Femoral Neck BMD change (% p.a.)	Univariate β (95% CI)		Multivariate β^a (95% CI)
Commenced calcium supplements	+1.37	(+0.54, +2.2)	+1.33	(+0.49, +2.17)
Calcium intake change (per 100 mg)	-0.03	(-0.07, +0.02)	-0.03	(-0.08, +0.01)
Persistent smoking cessation	+0.21	(-0.9, +1.34)	-0.04	(-1.16, +1.08)
Persistent self-reported physical activity change	+0.77	(+0.28, +1.3)	+0.72	(+0.22, +1.22)
Persistent increase in strenuous activity	+0.21	(-0.35, +0.76)	+0.11	(-0.45, +0.67)
Change in work capacity (per W)	-0.10	(-0.52, +0.32)	-0.06	(-0.48, +0.36)
Change in leg strength (per SD)	+0.02	(-0.22, +0.26)	+0.02	(-0.22, +0.26)
Lumbar Spine BMD change (% p.a.)
Commenced calcium supplements	+0.08	(-0.45, +0.62)	+0.18	(-0.37, +0.73)
Calcium intake change (per 100 mg)	0.00	(-0.03, +0.03)	-0.01	(-0.04, +0.02)
Persistent smoking cessation	+0.21	(-0.50, +0.93)	+0.11	(-0.62, +0.85)
Persistent self-reported physical activity change	-0.10	(-0.42, +0.21)	-0.05	(-0.38, +0.28)
Persistent increase in strenuous activity	-0.17	(-0.52, +0.18)	-0.16	(-0.53, +0.21)
Change in work capacity (per W)	+0.24^b	(-0.02, +0.51)	+0.31	(+0.03, +0.59)
Change in leg strength (per SD)	+0.07	(-0.08, +0.23)	+0.05	(-0.10, +0.22)

^aadjusted for other items in column, age, and difference in weight and height between baseline and 2 years. ^bp = 0.07

ISSN: 1471-2458