Table 1.
Worker Characteristics | All Workers |
---|---|
(n = 65) | |
N (%) | |
Age (years), Mean ± SD | 39.7 ± 9.4 |
Sleeping hours a | |
<8 h | 32 (49%) |
≥8 h | 33 (51%) |
Current smokers | |
Yes | 43 (66%) |
No | 22 (34%) |
BMI b | |
≥25 kg/m2 (overweight) | 14 (22%) |
<25 kg/m2 (normal) | 51 (78%) |
Diabetes c | |
Yes | 6 (9%) |
No | 59 (91%) |
Hypertension d | |
Yes | 10 (15%) |
No | 55 (85%) |
Work Characteristics | |
Total work experience (years), Mean ± SD | 17.5 ± 8.6 |
Work experience in SA (years), Mean ± SD | 7.0 ± 7.2 |
Shift length | |
10 h | 44 (68%) |
7 h | 21 (32%) |
Job title | |
Carpenter | 8 (12%) |
Block Layer | 4 (6%) |
Laborer | 14 (22%) |
Plasterer | 23 (35%) |
Steel Fixer | 3 (5%) |
Tiler | 13 (20%) |
a Self-reported average daily sleeping hours; b Calculated using individual height and weight measurements; c Self-reported medically treated diabetes; d Defined as measured systolic blood pressure ≥ 140 mmHg.