Table 4 Results from CC and MI frailty models for 2-piece exponential model with 12 month cut point (hypothesis-driven model)
| Â | Complete case analysis (N=33 427 jobs for 13 427 employees) | Multiple imputation (N=191 692 jobs for 81 301 employees) | ||
|---|---|---|---|---|
| Â | HR (95% CI) | P-value | HR (95% CI) | P-value |
0-12 Months (inexperienced period) | 1.32 (1.26, 1.38) | <.001 | 1.25 (1.23, 1.28) | <.001 |
Male gender | 0.62 (0.57, 0.68) | <.001 | 0.71 (0.68, 0.73) | <.001 |
Non-White | 1.08 (1.00, 1.17) | 0.061 | 0.97 (0.93, 1.00) | 0.073 |
First job at company | 0.88 (0.79, 0.98) | 0.017 | 0.90 (0.87, 0.93) | <.001 |
Age at start of job | 0.98 (0.98, 0.99) | <.001 | 0.99 (0.98, 0.99) | <.001 |
Physical demand | 1.25 (1.22, 1.29) | <.001 | 1.26 (1.24, 1.29) | <.001 |
Smelter plant | 1.25 (1.18, 1.33) | <.001 | 1.30 (1.24, 1.29) | <.001 |
Union plant | 1.15 (1.04, 1.27) | 0.008 | 1.30 (1.23, 1.37) | <.001 |
Original plant | 1.01 (0.83, 1.22) | 0.952 | 1.58 (1.50, 1.65) | <.001 |