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Table 2 Factors associated with pneumonia-mortality among subjects

From: Risk factors associated with mortality from pneumonia among patients with pneumoconiosis

  Unadjusted model Model 1 Model 2
  OR 95 % CI OR 95 % CI OR 95 % CI
Age (per year) 0.97 0.91-1.04 0.98 0.89-1.08 0.99 0.91-1.09
Smoking (pack-years) 1.03 0.99-1.05 1.03 0.99-1.07 1.03 0.99-1.07
Recent pneumonia       
 No 1.00   1.00   1.00  
 Yes 4.09 1.46-11.95 6.33 1.52-31.12 6.47 1.64-29.99
Interstitial fibrosis       
 No 1.00   1.00   1.00  
 Yes 4.75 1.46-15.99 6.50 1.41-35.82 8.91 1.95-52.63
Fungal ball       
 No 1.00   1.00   1.00  
 Yes 4.92 0.76-39.58 73.44 3.69- > 999.99 28.47 2.18-654.13
Type of pneumoconiosis       
 Silicosis 1.00   1.00   1.00  
 CWP 1.79 0.51-8.41 7.59 1.19-74.73 7.76 1.21-79.15
Large opacity       
 No 1.00   1.00   1.00  
 A or B or C 2.32 0.67-10.79 3.07 0.46-30.23 1.99 0.33-15.20
Profusion       
 1 1.00   1.00   1.00  
 2 2.64 0.63-18.16 1.32 0.15-15.47 1.04 0.12-12.28
 3 5.00 0.93-39.49 1.83 0.17-26.28 1.93 0.18-28.08
FEV1 predicted (%)       
  ≥ 70 1.00   NA   1.00  
  < 70 5.42 0.98-101.65 NA   10.95 1.11-302.02
FVC predicted (%)       
  ≥ 70 1.00   1.00   NA  
  < 70 6.60 1.71-43.75 16.86 1.19-74.73 NA  
  1. Statistically significant values are shown in bold type
  2. Model 1: Adjustment for age, smoking history, recent pneumonia, fungal ball, type of dust, large opacity, profusion and FVC less than 70 % of predicted
  3. Model 2: Adjustment for age, smoking history, recent pneumonia, fungal ball, type of dust, large opacity, profusion and FEV1 less than 70 % of predicted