Table 1: Demographic characteristics of truck drivers
Parameters	n (%)
Sex (n = 225 respondents)
Male	99.1 (223)
Female	0.9 (2)
Age (n = 229 respondents), yrs
<20	0.0 (0)
20–30	9.2 (21)
31–40	16.6 (38)
41–50	34.5 (79)
51–60	27.5 (63)
61–70	11.8 (27)
>70	0.4 (1)
Type of work (n = 209 respondents)
Long-distance (overnight) across states	18.7 (39)
Long-distance (overnight) within state	11.0 (23)
Local (day) trips only	46.9 (98)
A mixture of two or three of these	23.4 (49)
Number of hours worked per day (n = 230 respondents)
≤7	2.2 (5)
8	6.1 (14)
9	6.1 (14)
9+	85.6 (197)
Body Mass Index* (n = 214 respondents with height + weight), kg/m2
<18.5 (Underweight)	0.0 (0)
18.5–24.9 (Normal weight)	11.2 (24)
25.0–29.9 (Pre-obesity)	29.0 (62)
30.0–34.9 (Obesity – Class I)	32.7 (70)
35.0–39.9 (Obesity – Class II)	16.8 (360
>40 (Obesity – Class III)	10.3 (22)
*World Health Organization, 2017