Table 2.
Change in the use of ergonomic measures over a period of 2 years among construction workers, percentage (95% CI) and relative frequency
| Type of ergonomic measure | Decrease in use % (95% CI) (relative frequency) |
No change (no use) % (95% CI) (relative frequency) |
No change (using) % (95% CI) (relative frequency) |
Increase in use % (95% CI) (relative frequency) |
p |
|---|---|---|---|---|---|
| For horizontal transport (n = 656) | 27 (23–30) (174/656) |
15 (12–18) (98/656) |
29 (26–33) (193/656) |
29 (26–33) (191/656) |
0.14 |
| For vertical transport* (n = 419) | 25 (21–29) (104/419) |
12 (9–15) (48/419) |
29 (25–34) (123/419) |
34 (30–39) (144/419) |
0.00 |
| For the positioning or installing of materials (n = 649) | 24 (21–27) (157/649) |
24 (21–28) (158/649) |
23 (19–26) (147/649) |
29 (25–32) (187/649) |
0.18 |
*p < 0.05
CI, confidence interval.