Table 4.

Association between physical activity and prevalence of metabolic syndrome among adults in the United States with osteoarthritis, NHANES 2003-2006.

Mean duration of activity (minutes/day)		Crude odds ratios		Adjusted odds ratios*
	% with metabolic syndrome	95% Confidence Interval		95% Confidence Interval
Sedentary
1 (lowest: ≤455.7)	42.5	1.00		1.00
2 (>455.7 – 515.9)	51.9	1.46	0.87 to 2.43	1.36	0.79 to 2.35
3 (>515.9 – 584.3)	53.5	1.55	1.02 to 2.36	1.58	0.99 to 2.53
4 (highest: >584.3)	55.9	1.71	0.95 to 3.09	1.22	0.73 to 2.02
p-value for trend				0.34
Light activity
1 (lowest: ≤207.7)	61.0	1.00		1.00
2 (>207.7 – 249.8)	61.4	1.02	0.66 to 1.57	1.31	0.84 to 2.03
3 (>249.8– 289.1)	47.3	0.57	0.29 to 1.12	0.88	0.44 to 1.77
4 (highest: >289.1)	34.3	0.33	0.20 to 0.56	0.45	0.24 to 0.84
p-value for trend				<0.005
Lifestyle activity
1 (lowest: ≤35.1)	59.6	1.00		1.00
2 (>35.1 – 60.3)	64.5	1.23	0.83 to 1.83	2.17	1.10 to 4.30
3 (60.3 – 90.7)	45.2	0.56	0.32 to 0.99	1.09	0.49 to 2.43
4 (highest: >90.7)	34.6	0.36	0.20 to 0.65	0.79	0.36 to 1.72
p-value for trend				0.18
Moderate to vigorous
1 (lowest: ≤2.0)	60.7	1.00		1.00
2 (>2.0 – 7.2)	60.0	0.97	0.54 to 1.75	1.09	0.54 to 2.23
3 (>7.2 – 18.3)	54.2	0.77	0.47 to 1.26	1.00	0.42 to 2.40
4 (highest: >18.3)	29.2	0.27	0.15 to 0.48	0.53	0.22 to 1.28
p-value for trend				0.18

^*All models were adjusted for age (linear term), sex, body mass index, and general health.