Table 1. Reported heat stress at work and socioeconomic, behavioral, and other characteristics in a cohort of 37 816 full-time workers in Thailand.

Cohort attributes	Men		Women
	n	%	n	%
Total	17 402	46.0	20 414	54.0
Heat stress in 2005
Rarely/Never	7523	43.2	11 288	55.3
Sometimes	5992	34.4	6008	29.4
Often	3887	22.3	3118	15.3
Age group (years)
15–24	1989	11.4	4411	21.6
25–34	8043	46.2	10 196	50.0
≥35	7370	42.4	5807	28.5
Education
University	4499	25.9	6472	31.7
Diploma	4422	25.4	6885	33.7
High school	8481	48.7	7057	34.6
Personal income (Baht/month)a
20 001+	2925	16.8	2180	10.7
10 001–20 000	6162	35.4	5573	27.3
7001–10 000	4385	25.2	5450	26.7
<7000	3930	22.6	7211	35.3
Alcohol consumption
Never	1494	8.6	8033	39.4
Occasional social drinker	12 387	71.2	10 882	53.3
Regular drinker	1971	11.3	124	0.6
Stopped drinking	1550	8.9	1375	6.7
Smoking
Never smoked	8337	47.9	19 531	95.7
Current smoker	3424	19.7	172	0.8
Ex-smoker	5641	32.4	711	3.5
BMI in 2009
Normal weight	6966	40.0	11 609	56.9
Underweight	538	3.1	2707	13.3
Overweight	4500	25.9	2844	13.9
Obese	5398	31.0	3254	15.9
Job location
Bangkok	2576	14.8	3965	19.4
Urban	6712	38.6	7418	36.3
Rural	8114	46.6	9031	44.2
Job type
Office job	12 393	71.2	16 569	81.2
Physical job	5009	28.8	3845	18.8

^aUS$ 1 = 40 Baht in 2005.