Table 3. Multivariate logistic regression analysis on independent factors among systemic lupus erythematosus patients .

Factor		OR	95% CI	P
Age	continuous	1.042	0.944-1.150	0.418
Disease duration	continuous	1.085	0.966-1.218	0.167
Hydroxychloroquine	[no]
	yes	0.347	0.049-2.446	0.288
Azathioprine	[no]
	yes	3.256	1.369-5.639	0.921
Physician’s global assessment	[0]
	1	16.927	1.885-151.961	0.012
	2	31.839	2.327-435.585	0.010
	3	5.405	0.340-86.027	0.232
Severe fatigue	[≤ 4]
	> 4	0.509	0.050-5.155	0.568
SF-36 physical health score	continuous	0.856	0.752-0.956	0.034
SF-36 mental health score	continuous	0.899	0.899-0.963	0.034
SF-36 general health score	continuous	0.901	0.874-0.985	0.034

OR = odds ratio; CI = confidence interval; SF-36 = medical outcome survey short form 36.