Table 4.

Subgroup analysis for the association between SII and arthritis

Character	OR 95% CI	P-value	P for interaction
Age			0.795
Below 60	1.253 (1.062, 1.479)	0.008
Over 60	1.355 (1.196, 1.535)	<0.0001
PIR			0.318
Below 1.3	1.200 (1.012, 1.422)	0.036
1.3–3.5	1.402 (1.191, 1.651)	<0.0001
Over 3.5	1.173 (0.929, 1.482)	0.178
BMI			0.25
Below 25	1.392 (1.118, 1.732)	0.003
25–30	1.324 (1.059, 1.655)	0.014
Over 30	1.172 (1.011, 1.358)	0.035
Gender			0.051
Male	1.428 (1.203, 1.695)	<0.0001
Female	1.173 (1.011, 1.361)	0.035
Hypertension			0.645
No	1.177 (0.972, 1.425)	0.095
Yes	1.272 (1.121, 1.443)	<0.001
Diabetes			0.08
No	1.320 (1.144, 1.524)	<0.001
Pre-diabetes	1.513 (1.092, 2.096)	0.013
Diabetes	1.091 (0.905, 1.314)	0.359
Hyperlipidemia			0.111
No	1.583 (1.221, 2.053)	<0.001
Yes	1.230 (1.092, 1.385)	<0.001
Work activity			0.497
No	1.361 (1.162, 1.593)	<0.001
Yes	1.263 (1.082, 1.475)	0.003
Alcohol use			0.405
Never	1.581 (1.229, 2.035)	<0.001
Former	1.266 (1.072, 1.496)	0.006
Mild	1.250 (1.007, 1.552)	0.044
Moderate	1.140 (0.851, 1.528)	0.377
Heavy	1.409 (1.016, 1.954)	0.040
Smoke			0.643
Never	1.342 (1.118, 1.611)	0.002
Former	1.408 (1.150, 1.724)	0.001
Now	1.171 (0.964, 1.422)	0.112