Table 4 Multivariable statistics of TB infection incidence survival by cox regression analysis
From: Nosocomial tuberculosis transmission from 2006 to 2018 in Beijing Chest Hospital, China
Variable | Sub-variable | B | P value | OR | 95% CI | |
|---|---|---|---|---|---|---|
Lower | Upper | |||||
Duration | − 0.022 | 0.061 | 0.978 | 0.955 | 1.001 | |
Income | Equal and less than average | − 0.694 | 0.025 | 0.499 | 0.273 | 0.915 |
Above average | ||||||
Respirator | No respirator | 0.000 | ||||
Gauze mask | 5.451 | 0.000 | 233.093 | 80.583 | 674.237 | |
Medical mask | 3.841 | 0.000 | 46.580 | 11.268 | 192.560 | |
Medical N95 respirator | − 9.533 | 0.969 | 0.000 | 0.000 | 2.521E+203 | |
Ventilation | No ventilation | 0.000 | ||||
Natural ventilation | − 5.691 | 0.000 | 0.003 | 0.001 | 0.010 | |
Mechanical ventilation | − 4.186 | 0.000 | 0.015 | 0.005 | 0.046 | |
Ultraviolet | No ultraviolet | 0.000 | ||||
Ultraviolet only for bed | − 0.227 | 0.588 | 0.797 | 0.351 | 1.810 | |
Air UVGI | − 2.853 | 0.000 | 0.058 | 0.026 | 0.127 | |