Table 2.

Prevalence of radiographic knee OA, knee pain and both radiographic and knee pain in each group.

	Total (N = 4150)		Control (N = 1231)		Sarcopenic (N = 1379)		Obese (N = 203)		Sarcopenic obese (N = 1337)		Overall p-value
	Mean or row percent	Standard error	Mean or row percent	Standard error	Mean or row percent	Standard error	Mean or row percent	Standard error	Mean or row percent	Standard error
Radiographic knee OA											< 0.001
Yes	48.75	1.18	41.54	2.10	41.82	2.09	57.64	4.99	61.49	2.01
No	51.25	1.18	58.46	2.10	58.18	2.09	42.36	4.99	38.51	2.01
Knee pain											< 0.001
Yes	31.41	1.27	27.55	2.21	27.61	1.96	29.91	5.22	39.11	2.22
No	68.59	1.27	72.45	2.21	72.39	1.96	70.09	5.22	60.89	2.22
Radiographic knee OA & knee pain											< 0.001
Yes	22.70	1.12	17.82	1.93	17.60	1.70	25.96	5.17	32.04	2.20
No	77.30	1.12	82.18	1.93	82.40	1.70	74.04	5.17	67.96	2.20

Radiographic knee OA, Kellgren–Lawrence grade scale grade ≥ 2; Knee pain, knee pain for 30 days over the past 3 months.

Continuous variables were analyzed by one-way ANOVA and categorical variables were analyzed by Rao-Scott Chi-square test.

OA osteoarthritis.