Table 1 General characteristics of patients with KOA (n = 311).^aChi-square test; not sedentary=<6 h/d; sedentary = ≥ 6 h/d. BMI body mass index; NRS numerical rating scale; PSQI Pittsburgh sleep quality Index; TSK−11 Tampa scale of Kinesiophobia-11; KSS knee society Score.

From: Self-reported sedentary time and its influencing factors among patients with knee osteoarthritis: a cross-sectional survey

Variables	Number		Not sedentary		Sedentary		P value^a
Variables	N	%	N	%	N	%	P value^a
Total	311	100.00	171	55.00	140	45.00
Gender							0.243^a
Male	62	19.9	30	17.5	32	22.9
Female	249	80.1	141	82.5	108	77.1
Age (yrs)							0.137^a
<60	87	28.0	52	30.4	35	25.0
60–69	131	42.1	62	36.3	69	49.3
70–79	84	27.0	52	30.4	32	22.9
≥ 80	9	2.9	5	2.9	4	2.9
BMI (kg/m²)							0.003^a
<18.5	10	3.2	5	2.9	5	3.6
18.5–24.9	164	52.7	103	60.2	61	43.6
25.0−29.9	100	32.2	52	30.4	48	34.3
≥ 30.0	37	11.9	11	6.4	26	18.6
Marital status							0.427^a
Married	278	89.4	155	90.6	123	87.9
Single/divorced/widowed	33	10.6	16	9.4	17	12.1
Lifestyle							0.878^a
Live with someone	288	92.6	158	92.4	130	92.9
Live alone	23	7.4	13	7.6	10	7.1
Place of residence							0.003^a
Rural	54	17.4	37	21.6	17	12.1
Town	190	61.1	108	63.2	82	58.6
City	67	21.5	26	15.2	41	29.3
Employment status							<0.001^a
Employed	149	47.9	109	63.7	40	28.6
Unemployed	162	52.1	62	36.3	100	71.4
Education							0.280^a
Primary school or below	273	87.8	147	86.0	126	90.0
Junior high school and above	38	12.2	24	14.0	14	10.0
Monthly family income(RMB)							0.008^a
<3000	164	52.7	92	53.8	72	51.4
3000–5000	133	42.8	66	38.6	67	47.9
>5000	14	4.5	13	7.6	1	0.7
Medical payment method							0.399^a
Self-funded	101	32.5	59	34.5	42	30.0
Medical insurance	210	67.5	112	65.5	98	70.0
Duration of knee joint pain (years)							0.002^a
<3	43	13.8	27	15.8	16	11.4
3–5	91	29.3	62	36.3	29	20.7
>5	177	56.9	82	48.0	95	67.9
Complications							0.188^a
No	156	50.2	80	46.8	76	54.3
Yes	155	49.8	91	53.2	64	45.7
NRS							<0.001^a
<4	122	39.2	105	61.4	17	12.1
≥ 4	189	60.8	66	38.6	123	87.9
Social support							<0.001^a
≤ 22	154	49.5	40	23.4	114	81.4
>22	157	50.5	131	76.6	26	18.6
Depression							<0.001^a
No	227	73.0	155	90.6	72	51.4
Yes	84	27.0	16	9.4	68	48.6
Anxiety							<0.001^a
No	186	59.8	140	81.9	46	32.9
Yes	125	40.2	31	18.1	94	67.1
PSQI							<0.001^a
≤ 7	174	55.9	123	71.9	51	36.4
>7	137	44.1	48	28.1	89	63.6
Fatigue							<0.001^a
No	187	60.1	151	88.3	36	25.7
Yes	124	39.9	20	11.7	104	74.3
TSK−11							<0.001^a
<26	123	39.5	112	65.5	11	7.9
≥ 26	188	60.5	59	34.5	129	92.1
KSS							<0.001^a
<60	222	71.4	90	52.6	132	94.3
≥ 60	89	28.6	81	47.4	8	5.7

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Table 1 General characteristics of patients with KOA (n = 311).^aChi-square test; not sedentary=<6 h/d; sedentary = ≥ 6 h/d. BMI body mass index; NRS numerical rating scale; PSQI Pittsburgh sleep quality Index; TSK−11 Tampa scale of Kinesiophobia-11; KSS knee society Score.

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