Table 1.

Characteristics of the study population^a: frequency distribution (n=3,737)

Variable	Number of respondents (n)	%
Total	3,988	100.0
Social and demographic characteristics
Sex
Male	1,340	33.6
Female	2,648	66.4
Age (years)b
≤20	175	4.4
21–30	1,265	31.8
31–40	1,159	29.1
41–50	613	15.4
50+	770	19.3
Mean=38.4, SD=14.5, Min=13, Max=99	–	–
Performs any income-generating activity
Yes	2,909	72.9
No	1,079	27.1
Ever had formal education
Yes	3,494	87.6
No	494	12.4
Religion
Muslim	1,559	39.1
Christian-Catholic	2,087	52.3
Other Christian	322	8.1
Other/none	20	0.5
Ethnic group
Northern Western	307	7.7
Northern Eastern	133	3.3
Southern	3,548	89.0
Marital characteristics
Marital status
Polygamous	104	2.61
Monogamous	3,884	97.39
Remarried
Yes	674	16.9
No	3,314	83.1
Sexual behavior characteristics
Lifetime number of sexual partnersb
1	901	24.1
2–4	1,837	49.2
5+	999	26.7
Mean=4.6, SD=7.2, Min=1, Max=100	–	–
Condom use at first sexb
Yes	525	13.3
No	3,384	85.8
Don't know	33	0.8
Concurrent partnerships
No	3,719	93.3
Yes	269	6.7
Gender norms
Beliefs a woman is justified to ask their husbands to use a condom if she knows he has a disease)
Yes	3,454	86.6
No	534	13.4
Health care utilization
Ever received VCT
Yes	1,008	25.3
No	2,980	74.7
Lifestyle characteristics
Ever drank alcohol
Yes	1,103	27.7
No	2,885	72.3

^aCurrently married and cohabitating heterosexuals adults who participated in MZIMA adult health community cohort conducted in Ifakara, Tanzania.

^bMissing data for some respondents.