Physical activity and health-related quality of life in men and women with hip and/or knee osteoarthritis before and after a supported self-management programme – a prospective observational study

Figures & data

Figure 1. Flowchart for the selection of data for analysis in the study.

Figure 2. Model for calculation of activity minutes.

Table 1. Differences in physical activity for men (n = 1721) and women (n = 4611), and in health-related quality of life (HRQoL)^a for men (n = 1654) and women (n = 4491) at baseline and at follow-up at 3 and 12 months.

	Baseline				3 months				12 months
	Men	Women	All	p-value^b	Men	Women	All	p-value^b	Men	Women	All	p-value^b
Proportions of sufficiently physically active (%)
≥150 activity min./week	80.8	84.0	83.1	.003	88.6	89.1	88.9	.605	76.8	79.2	78.5	.035
HRQoL
Mean (SD)	0.67 (0.20)	0.64 (0.23)	0.65 (0.22)	<.001	0.73 (0.17)	0.71 (0.19)	0.72 (0.19)	<.001	0.70 (0.21)	0.69 (0.22)	0.69 (0.22)	.010

^aHRQoL is measured by EQ-5D-3L index

^bp-value for sufficient physical activity analysed with Chi-square test, and for HRQoL analysed with t-test

Table 2. Difference in proportion (%) of men and women in increase, decrease or no change in physical activity, and health-related quality of life (HRQoL)^a between baseline and follow-up at 3 and at 12 months.

	Physical activity, % (n)				EQ-5D-3L index, % (n)
	n = 6332				n = 6145
	Increase^b	No change^b	Decrease^b	p-value^c	Increase^b	No change^b	Decrease^b	p-value^c
Baseline vs 3 months				.085				.629
Men	53.5 (920)	11.6 (200)	34.9 (601)		46.3 (765)	37.5 (621)	16.2 (268)
Women	52.8 (2436)	13.7 (631)	33.5 (1544)		46.2 (2074)	36.7 (1646)	17.2 (771)
All	53.0 (3356)	13.1 (831)	33.9 (2145)		46.2 (2839)	36.9 (2267)	16.9 (1039)
Baseline vs 12 months				.530				.577
Men	45.0 (774)	8.7 (149)	46.4 (798)		41.3 (683)	33.3 (550)	25.5 (421)
Women	43.7 (2016)	8.3 (384)	48.0 (2211)		41.2 (1852)	34.4 (1546)	24.3 (1093)
All	44.1 (2790)	8.4 (533)	47.5 (3009)		41.3 (2535)	34.1 (2096)	24.6 (1514)

^aHRQoL is measured by EQ-5D-3L.

^bIncrease, decrease and no change refer to change in physical activity and EQ-5D-3L index value.

^cp-value for difference in proportion between men and women analysed with Chi-square test.

Table 3. Differences in proportion (%) of men and women in change of physical activity group (insufficient to sufficient PA, still sufficient PA, still insufficient PA, and sufficient to insufficient PA), between baseline and follow-up at 3 and at 12 months.

	Physical activity % (n)
	n = 6332
	Insufficient to sufficient PA	Still sufficient PA	Still insufficient PA	Sufficient to insufficient PA	p-value*
Baseline vs 3 months					.013
Men	13.0 (224)	75.6 (1301)	6.2 (106)	5.2 (90)
Women	10.2 (472)	78.8 (3635)	5.8 (266)	5.2 (238)
All	11.0 (696)	78.0 (4936)	5.9 (372)	5.2 (328)
Baseline vs 12 months					.009
Men	8.9 (153)	67.9 (1168)	10.3 (177)	13.0 (223)
Women	8.2 (378)	71.0 (3274)	7.8 (360)	13.0 (599)
All	8.4 (531)	70.2 (4442)	8.5 (537)	13.0 (822)

*p-value for difference in proportion between men and women analysed with Chi-square test