Trends in HIV-1 prevalence and risk behaviours over 15 years in a rural population in Kilimanjaro region of Tanzania

Table 3 Trends in risk behaviors by sex and survey among adults aged 15–24 years in rural Kilimanjaro region of Tanzania

Variables	Category	1991	1993	1997	2005	p-value for trend test
		N = 523	N = 411	N = 511	N = 575
Sexually active (%)
	Men	87.1	75.3	72.7	69.7	< 0.001
	Women	69.3	78.7	66.2	73.5	0.650
Age at first sex-median in years ^a
	Men	15.0	16.0	15.0	15.0	0.768
	Women	18.0	18.0	17.0	17.0	0.564
Participants aged 15–24 years who had sex at age ≤ 15 years (%)
	Men	61.4	54.6	48.2	38.3	< 0.001
	Women	28.1	27.3	32.4	22.0	0.104
Age at first marriage/cohabiting-median in years ^b
	Men	22.0	21.0	20.5	21.0	0.868
	Women	19.0	18.0	18.0	18.0	0.798
Polygamous marriage (%)
	Men	0.0	0.6	0.8	0.1	0.961
	Women	3.6	3.0	6.2	11.3	< 0.001
No. partners past 4 weeks
	Men: ≥ 2 partners	18.1	4.2	6.0	5.0	< 0.001
	Women: ≥ 2 partners	5.2	3.8	4.9	2.7	0.024
No. of partners past year ^c
	Men: ≥ 2 partners	59.0	48.2	32.5	30.4	< 0.001
	Women: ≥ 2 partners	15.0	13.8	12.4	6.4	0.003
No. of partners past 5 years ^c
	Men: ≥ 2 Partners	73.5	71.1	47.7	51.0	< 0.001
	Women: ≥ 2 Partners	35.2	33.8	27.0	25.5	0.016
Ever/lifetime used condom (%)
	Men	39.8	37.8	34.0	42.2	0.800
	Women	21.4	29.6	23.1	37.9	< 0.001
Presently have GDS (%)
	Men	2.7	2.5	4.8	1.3	0.350
	Women	1.9	2.5	1.6	2.9	0.374
Presently have GUD (%)
	Men	1.5	1.9	1.2	0.5	0.274
	Women	0.4	0.6	1.2	1.4	0.112
Circumcision	Men	86.6	86.5	-	88.2	0.748

ISSN: 1742-6405