Table 4. Negative Binomial Regression Analysis Showing the Effect of per one Unit Increase in Temperature (°C) and Humidity on Trauma Deaths a.
| Trauma Mortality | IRR | Confidence Interval 95% | Significance |
|---|---|---|---|
| Unintentional deaths | |||
| Temperature | |||
| Men | 1.003 | 0.987 - 1.020 | 0.701 |
| Women | 1.007 | 0.993 - 1.021 | 0.332 |
| 10 - 30 y | 1.003 | 0.988 - 1.019 | 0.664 |
| > 30 - 60y | 1.005 | 0.991 - 1.020 | 0.487 |
| > 60 y | 1.013 | 0.999 - 1.030 | 0.057 |
| Total | 1.004 | 0.988 - 1.020 | 0.592 |
| Humidity | |||
| Men | 0.993 | 0.982 - 1.003 | 0.185 |
| Women | 0.995 | 0.985 - 1.005 | 0.329 |
| 10 - 30 y | 0.994 | 0.983 - 1.004 | 0.231 |
| > 30 - 60y | 0.993 | 0.984 - 1.003 | 0.184 |
| > 60 y | 0.988 | 0.978 - 0.998 | 0.024* |
| Total | 0.993 | 0.983 - 1.004 | 0.222 |
| Intentional deaths | |||
| Temperature | |||
| Men | 0.988 | 0.962 - 1.013 | 0.348 |
| Women | 0.987 | 0.937 - 1.040 | 0.631 |
| 10 - 30 y | 0.993 | 0.968 - 1.019 | 0.598 |
| > 30 - 60y | 0.975 | 0.945 - 1.006 | 0.109 |
| > 60 y | 1.014 | 0.961 - 1.070 | 0.616 |
| Total | 0.987 | 0.961 - 1.014 | 0.346 |
| Humidity | |||
| Men | 1.005 | 0.985 - 1.026 | 0.595 |
| Women | 0.991 | 0.954 - 1.030 | 0.663 |
| 10 - 30 y | 1.001 | 0.981 - 1.022 | 0.887 |
| > 30 - 60y | 1.010 | 0.989 - 1.031 | 0.318 |
| > 60 y | 0.986 | 0.941 - 1.033 | 0.569 |
| Total | 1.004 | 0.983 - 1.026 | 0.671 |
a Abbreviation: IRR: Incidence Rate Ratio.