Table 3 Regression coefficients of the mixed-effects survival models
Predictor | Modelling approach | ||
|---|---|---|---|
Regression 1 | Regression 2 | Optimization | |
Constant | 2.81439 | 6.42965 | 6.42705 |
ln(d) | 2.96858 | 3.35703 | 1.83056 |
d | –0.08303 | –0.08219 | –0.02004 |
ln(T) | –2.31578 | –4.14173 | –2.72766 |
DOM | 0.78448 | 0.95684 | 1.67272 |
Step | – | –0.20889 | – |
Period 1 (1974–1975) | –0.61513 | –0.56050 | 0.20351 |
Period 2 (1975–1976) | –0.56811 | –1.02784 | 0.58189 |
Period 3 (1976–1977) | –0.32775 | –0.25067 | 0.04924 |
Period 4 (1977–1978) | 0.59064 | 0.85832 | 0.04480 |
Period 5 (1978–1979) | –0.23147 | 0.19763 | 0.19210 |
Period 6 (1979–1980) | 0.65382 | 0.66163 | –0.21627 |
Period 7 (1979–1983) | 0.49989 | 0.2948 | 0.33837 |
Period 8 (1980–1983) | 0.57873 | 0.24327 | 0.06472 |
Period 9 (1983–1990) | 0.43741 | 0.29726 | –0.17157 |
Period 10 (1983–1991) | 0.47512 | 0.29659 | –0.42628 |
Period 11 (1983–1996) | –0.31605 | –0.16725 | 0.10843 |
Period 12 (1990–1996) | –0.22321 | –0.13769 | 0.52595 |
Period 13 (1991–1996) | –0.95390 | –0.89791 | 0.97645 |