Table 4.

Association of body composition with the health assessment questionnaire

Covariate and tertiles/groups	Male				Female
	Unadjusted analyses		Adjusted analyses		Unadjusted analyses		Adjusted analyses
	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value
Age	0.98 (0.94–1.02)	0.409	NA		1.05 (1.02–1.07)	< 0.001	1.04 (1.02–1.06)	< 0.001
Disease duration	1.01 (0.9–1.13)	0.802	NA		1.02 (0.99–1.06)	0.119	NA
Anti-CCP positivity	1.21 (0.9–1.64)	0.183	NA		1.08 (0.98–1.19)	0.103	NA
Current steroid dose	0.83 (0.65–1.07)	0.171	NA		0.97 (0.9–1.05)	0.495	NA
DAS28	1.47 (0.89–2.43)	0.125	NA		2.74 (2.16–3.48)	< 0.001	2.68 (2.1–3.43)	< 0.001
BMI	1.11 (0.95–1.29)	0.169	NA		1.04 (0.98–1.1)	0.195	NA
Skeletal muscle mass	1.02 (0.91–1.13)	0.715	NA		0.86 (0.79–0.93)	< 0.001	0.87 (0.8–0.96)	0.006
Body fat mass	1.11 (1.0–1.18)	0.042	NA		1.02 (0.99–1.05)	0.094	NA
Body fat/skeletal muscle ratio	1.17 (0.65–2.11)	0.593	NA		2.37 (1.22–4.59)	0.001	2.67 (1.29–5.55)	0.008

OR, odds ratio; CI, confidence interval; NA, not applicable; CCP, citrullinated protein antibody; DAS28, disease activity score in 28 joints; BMI, body mass index.