Table 3. Distribution of contractor-, steward-, and coworker-safety practice and Pearson's correlation coefficients between different measures of safety practice among construction apprentices.
| Safety practice (score rangea) | N | Mean (SD) | Correlation between safety practice from | ||
|---|---|---|---|---|---|
|
|
|||||
| Contractor | Steward | Coworker | |||
| Contractor (1–4) | 1,749 | 1.88 (0.57)c | 1 | ||
| Steward (1–4) | 996b | 1.52 (0.58)c | 0.35* | 1 | |
| Coworker (1–4) | 1,725 | 1.82 (0.56)c | 0.55* | 0.43* | 1 |
*
p < 0.001: p value of Pearson's correlation coefficients between safety practice measures from different levels
a
Higher score in safety practice indicating poorer practice
b
Sample size for steward-safety practice is smaller than others because apprentices who did not have on-site stewards (N = 747) were not eligible to answer the questions about steward-safety practice
c
Steward-safety practice was significantly lower (p value <0.001) than both contractor- and coworker-safety practice when paired t test was conducted among the apprentices who reported all the three safety practice measures