Table 4.

Univariate and multivariate regression analyses of factors associated with MCS score in prisoners

Variables	N	Mental component summary score
		Univariate analysis			Multivariate analysis
		β	SE	P value	β	SE	P value
HCV status
HCV antibody negative	419	–	–	–	–	–	–
HCV antibody positive/non-viremic	89	−.11	1.43	.005	−.03	1.46	.5
HCV antibody positive/viremic	176	−.07	1.10	.06	.05	1.33	.3
Sex
Male	584	–	–	–	–	–	–
Female	100	−.18	1.31	<.001	−.08	1.14	.02
Age (years)
<25	229	–	–	–	–	–	–
25–40	262	−.02	1.11	.7	.02	.91	.5
>40	193	.12	1.20	.007	.11	1.03	.004
Education
Without qualification	353	–	–	–	–	–	–
With qualification	323	.02	.95	.7	.00	.77	.9
Not reported	8	−.00	4.41	.9	−.03	3.49	.3
Drug injection in prison
No	476	–	–	–	–	–	–
Yes	174	−.17	1.08	<.001	−.07	1.05	.08
Not reported	34	−.07	2.16	.06	−.03	1.82	.4
Knowledge about having hepatitis C
No	479	–	–	–	–	–	–
Yes	190	−.13	1.05	<.001	−.02	1.31	.7
Not reported	15	−.02	3.20	.7	.04	2.61	.2
Co-morbidity
Charlson 0–1	499	–	–	–	–	–	–
Charlson >1	185	−.12	1.05	.002	.02	.96	.5
Chronic disabling condition
No	455	–	–	–	–	–	–
Yes	229	−.12	.99	.002	−.01	.87	.7
Symptoms past 4 weeks
None	90	–	–	–	–	–	–
1–2	151	−.06	1.58	.3	−.05	1.31	.3
3 or more	442	−.32	1.37	<.001	−.16	1.19	<.001
Not reported	1	−.04	11.91	.2	−.06	9.82	.05
Hospital admission past 12 months
No	547	–	–	–	–	–	–
Yes	137	−.19	1.16	<.001	−.07	.98	.04
Depression severity
Minimal/nil	404	–	–	–	–	–	–
Mild	150	−.26	.96	<.001	−.23	.96	<.001
Moderate to severe	117	−.59	1.05	<.001	−.54	1.08	<.001
Not reported	13	−.04	2.83	.2	−.04	2.85	.3

The analysis included 684 prisoners.

MCS Mental component summary, β standardized regression coefficient, SE standard error

Adjusted r² = .38