Table 1. Characteristics of study population: men with at least one regular or casual sex partner in the past 12 months in 2006 the National Sexual Behavior Survey of Thailand (N = 2,281).

	Men with regular partners (N = 1998)			Men with casual partners (N = 520)
	Unweighted N	Weighted Frequency	p-value	Unweighted N	Weighted Frequency	p-value
Sociodemographic
Location
Bangkok	710	10.7%		197	14.2%
Other urban area	656	29.5%		180	36.7%
Rural area	632	59.9%	<0.0001	143	49.1%	<0.0001
Occupation
Unemployed	304	7.4%		168	20.1%
Professional	267	12.5%		70	17.2%
Sales/service	446	19.9%		92	20.7%
Skilled technical	648	44.1%		111	30.1%
Labor	333	16.2%	<0.0001	79	11.9%	<0.0001
Risk perception factors
Education
Less than grade 4	339	23.9%		12	3.6%
Grade 5–7	407	23.9%		79	17.0%
Junior high school	486	18.4%		200	34.6%
Senior high school	494	20.1%		178	33.6%
Vocational/BA or higher	272	13.8%	<0.0001	51	11.3%	<0.0001
Marital status
Single	620	13.8%		427	70.0%
Married & registered	800	54.2%		29	8.6%
Married, not registered	556	30.6%		52	15.7%
Widowed/divorced/separated	22	1.4%	<0.0001	12	5.7%	<0.0001
Number of partners in past 12 months
One	1647	89.0%		128	23.3%
More than one	351	11.0%	<0.0001	392	76.7%	<0.0001
Ever gave money for sex
Yes – within the past year	136	6.8%		108	20.8%
Yes – more than a year ago	600	30.0%		113	21.7%
No	1262	63.2%	<0.0001	299	57.5%	<0.0001
Duration of relationship
30 days or less	401	20.1%		225	43.3%
31–90 days	275	13.8%		151	29.0%
More than 90 days	1322	66.2%	<0.0001	144	27.7%	<0.0001
Condom motivation factors
Self-reported access to convenient & cheap condoms	561	33.5%	–	160	35.7%	–
Unprompted knowledge of condom effectiveness in HIV prevention	1491	67.2%	–	458	83.9%	–
Condom use as chosen strategy to reduce HIV risk	783	31.7%	–	369	69.0%	–
Frequency of condom use
Always	146	4.2%		307	60.1%
Mostly	93	2.4%		33	5.3%
About half	41	1.3%		8	1.1%
Sometimes	450	18.0%		80	13.1%
Never	1268	74.1%	<0.0001	92	19.8%	<0.0001