Relationship between Body Mass Index Reference and All-Cause Mortality: Evidence from a Large Cohort of Thai Adults

Table 2

Cohort attributes by body mass index categories, Thai Cohort Study (2005–2010).

Cohort attributes	Proportion; (row %)	Body mass index categories (column %)
		Underweight	Lower normal	Upper normal	Overweight	Obese I	Obese II
Sociodemographic
Males	45.3	6.1	20.9	28.6	21.7	19.7	3.0
Females	54.7	21.8	35.9	22.6	9.7	7.8	2.2
Monthly income (Baht)
≤3000 Baht	10.1	21.0	33.1	23.6	11.2	8.3	2.8
3001–7000	30.9	19.4	33.9	24.4	11.3	9.0	2.1
7001–20000	47.5	11.9	27.4	26.5	16.8	14.8	2.6
>20000	10.6	6.4	17.6	24.5	23.4	24.0	4.1
Paid work
≤10 hours	24.3	14.3	28.8	25.1	15.5	13.6	2.7
10–40 hours	28.2	11.6	26.9	25.9	17.0	15.7	2.8
>40 hours	35.0	15.1	30.1	25.7	14.5	12.3	2.2
Residence
Rural	48.2	14.9	30.0	25.7	14.9	12.3	2.2
Urban	52.8	14.6	28.3	24.9	15.3	14.0	2.9
Health behaviours
Smoking
Never	72.3	17.9	32.4	24.6	12.7	10.1	2.3
Former	17.4	6.2	19.5	27.0	22.1	21.9	3.4
Current	10.3	6.9	22.1	27.1	20.4	20.3	3.3
Alcohol drinking
Never	26.4	20.3	33.2	23.2	11.3	9.6	2.5
Occasional	59.8	13.3	28.7	26.1	15.8	13.5	2.5
Regular	4.9	4.9	16.2	25.8	24.5	25.0	3.6
Former	9.0	13.0	26.7	25.2	16.5	15.2	3.3
Physical activity
0 times per week	34.7	19.1	31.5	22.4	12.3	11.7	3.0
1–3 times per week	26.9	15.8	29.9	24.5	14.3	13.1	2.5
3+ times per week	38.4	10.3	26.9	28.4	17.9	14.2	2.3
Self-assessed health
Excellent/good	70.3	13.7	29.1	26.2	15.8	12.9	2.2
Fair	25.1	16.8	29.2	23.2	13.7	13.7	3.4
Poor/very poor	4.6	19.1	29.1	22.8	11.8	13.1	4.1