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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