Table 1

Baseline and follow-up survey comparisons of basic characteristics, sexual practices, knowledge, self-reported STI symptoms and exposure to HIV interventions among male sex workers in Mombasa

	2006 baseline		2008 follow-up		p Value^*
	n	% or median (IQR)	n	% or median (IQR)	p Value^*
Background characteristics
Age in years, median (IQR)	425	26 (22–31)	442	23 (21–27)	<0.001
Education
None/incomplete primary	425	38.1	442	30.3	0.026
Completed primary/incomplete secondary		40.5		48.9
Completed secondary or higher		21.4		20.8
Religion
Muslim	412	49.5	413	56.2	0.154
Catholic		30.6		27.1
Protestant		19.9		16.7
Consumes alcohol 4 or more days/times per week	425	16.9	442	15.6	0.596
Sexual identity, networks and practices
Sexual self-identification
Basha/king/bisexual	425	58.3	442	56.1	0.504
Shoga/queen/gay/homosexual/others	425	41.7	442	43.9	0.504
Has had a male paying client in the past 7 days	425	87.3	440	81.8	0.026
Number of male clients in the past 7 days, median (IQR)	425	2 (1–3)	440	2 (1–3)	0.708
Used condom during anal sex with last male client	420	57.9	438	67.6	0.003
Used any lubricant with last male client	420	71.4	438	73.1	0.594
Used a water-based lubricant with last male client	420	15.5	438	29.9	<0.001
‘Always’ used condoms during anal sex with male clients in the past 30 days	424	35.9	442	50.2	<0.001
Role during anal sex with last male client
Insertive only	420	57.6	438	50.9	0.101
Receptive only		34.8		38.6
Both insertive and receptive		7.6		10.5
Amount received from last male client in Kenya Shillings, median (IQR)	417	KSH 1000 (500–2000)	415	KSH 1000 (500–2000)	0.155
Has had a male non-paying partner in the past 30 days	425	53.2	442	46.4	0.045
Used condom during anal sex with last non-paying male partner	226	50.9	205	61.5	0.027
Used any lubricant with last non-paying male partner	226	72.1	205	77.6	0.195
Used a water-based lubricant with last non-paying male partner	226	18.6	205	37.1	<0.001
‘Always’ used condoms during anal sex with non-paying male partners in the past 30 days	226	27.4	205	39.5	0.008
Has had a female paying client in the past 30 days	425	14.6	442	16.3	0.488
Has had a female non-paying partner in the past 30 days	425	25.4	442	33.3	0.011
Prevention knowledge
Knows HIV can be transmitted via anal sex	425	64.7	442	73.3	0.006
Knows consistent condom use prevents HIV	425	86.8	442	89.4	0.247
Knows that only a water-based lubricant should be used with a latex condom	425	19.8	442	40.7	<0.001
Self-report of STI symptoms in the past 12 months
Burning urination	425	33.4	442	31.5	0.537
Self-reported anal discharge	424	8.3	442	9.7	0.449
HIV testing and exposure to interventions
Has ever been counselled or tested for HIV	425	55.8	442	67.7	<0.001
Has visited an MSM-friendly centre or clinic in the past 12 months	425	22.1	442	30.3	<0.001
Has had at least one contact with a peer educator in the past 12 months	425	22.1	442	32.6	0.001

↵* χ² Tests used for categorical variables; Wilcoxon rank-sum test used for median values.
US$1=∼66 Kenya Shillings (at time of follow-up survey).
STI, sexually transmitted infection.