Table 1
Demographic data (N ¼ 427).
Characteristic N (%)
Age (mean SD) yrs ¼ 38.17 9.2
BMI (mean SD) ¼ 22.60 3.3
Years working (mean SD) ¼ 9.02 6.2
Sex
Male 285 (66.7)
Female 142 (33.3)
Educational level
Primary school 300 (70.2)
Secondary school 69 (16.2)
Post-secondary 58 (13.6)
Underlying disease
Yes 53 (12.4)
No 374 (87.6)
Current smoker
Yes 183 (42.9)
No 244 (57.1)
Kratom use
Yes 134 (31.4)
No 293 (68.6)