Table 7.
Regression results comparing the coal subsector to SSG and industrial minerals
| Health and safety construct | Mining subsector | Mean | B | Std. error | Wald Chi-square | p value |
|---|---|---|---|---|---|---|
| Organizational support | SSG | 4.33 | 0.47 | 0.06 | 70.29 | < 0.001 |
| Industrial mineral | 4.53 | 0.67 | 0.06 | 125.75 | < 0.001 | |
| Coal | 3.86 | Reference group | ||||
| Coworker communication | SSG | 5.09 | 0.30 | 0.05 | 38.42 | < 0.001 |
| Industrial mineral | 5.05 | 0.26 | 0.05 | 24.66 | < 0.001 | |
| Coal | 4.79 | Reference group | ||||
| Supervisor support | SSG | 4.83 | 0.25 | 0.05 | 25.77 | < 0.001 |
| Industrial mineral | 4.88 | 0.30 | 0.05 | 29.78 | < 0.001 | |
| Coal | 4.58 | Reference group | ||||
| Worker engagement | SSG | 4.55 | 0.41 | 0.06 | 48.81 | < 0.001 |
| Industrial mineral | 4.64 | 0.50 | 0.06 | 66.43 | < 0.001 | |
| Coal | 4.14 | Reference group | ||||
| Adequacy of training | SSG | 5.09 | 0.31 | 0.05 | 36.78 | < 0.001 |
| Industrial mineral | 5.32 | 0.54 | 0.05 | 104.59 | < 0.001 | |
| Coal | 4.78 | Reference group | ||||
B is the unstandardized regression coefficient. Std. error is the standard error for the regression coefficient. Wald Chi-square is the test statistic for the regression coefficient derived from the maximum likelihood, robust regression. The p value is the probability value for the regression coefficient