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Table 3 Factors associated with TB infection incidence analyzed by univariate cox regression analysis

From: Nosocomial tuberculosis transmission from 2006 to 2018 in Beijing Chest Hospital, China

Variable P value OR 95% CI for Exp(B)
Lower Upper
Age 0.010 0.969 0.945 0.992
Sex
 Male 0.127   0.352 1.139
 Female     
Duration 0.091   0.959 1.003
Education
 Less than undergraduate 0.784    
 Undergraduate 0.668   0.299 2.168
 Graduate and postgraduate 0.500   0.480 1.431
Income
 Equal and less than average 0.005 0.429 0.238 0.772
 Above average     
Respirator
 No respirator 0.000    
 Gauze mask 0.000 3.725 2.229 6.226
 Medical mask 0.067 2.329 0.942 5.757
 Medical N95 respirator 0.950 0.000 0.000 3.898E+155
Ultraviolet
 No ultraviolet 0.000    
 Ultraviolet only for bed 0.000 4.524 2.080 9.839
 Air UVGI 0.000 0.232 0.136 0.397
Ventilation
 No ventilation 0.000    
 Natural ventilation 0.000 0.229 0.130 0.403
 Mechanical ventilation 0.031 0.526 0.293 0.944