Sexual Dimorphisms of Adrenal Steroids, Sex Hormones, and Immunological Biomarkers and Possible Risk Factors for Developing Rheumatoid Arthritis

Table 2

Logistic regression model of sex outcome, including age and serum inflammatory biomarkers, but not IL-6 assayed only in females.

Variables in the model	Total ()		Controls ()
	Wald	values	Wald	values
C-reactive protein (CRP)	1.565	0.211	0.844	0.358
Acute serum amyloid A (ASAA)	11.163	0.001	9.16	0.002
Interleukin-1β (IL-1β)	0.092	0.762	0.518	0.472
Interleukin-1 receptor antagonist	0.945	0.331	1.562	0.211
Tumor necrosis factor-α (TNF-α)	0.182	0.669	1.437	0.231
Soluble interleukin-2Rα (sIL-2Rα)	4.032	0.045	3.813	0.051
Soluble tumor necrosis receptor 1	14.409	<0.001	10.721	0.001
Age at entry	4.037	0.045	1.924	0.165
Constant	10.724	0.001	8.257	0.004

1 df for each variable entered in block.