Table a2 Covariance matrix of logistic regression estimates

From: The LLP risk model: an individual risk prediction model for lung cancer

      Family history of lung cancer Smoking duration (years)
   Prior pneumonia Asbestos exposure Prior cancer <60 years 60 years 1–20 21–40 41–60 >60
Prior pneumonia   0.036         
Asbestos exposure   0.001 0.029        
Prior cancer   0.002 0.000 0.058       
Family history <60 years 0.004 0.002 0.001 0.075      
Family history 60 years −0.001 −0.001 −0.002 0.007 0.042     
Smoking duration 1–20 years 0.000 −0.001 0.002 −0.004 −0.002 0.085    
Smoking duration 21–40 years −0.001 0.000 0.001 0.000 −0.001 0.048 0.062   
Smoking duration 41–60 years 0.002 0.001 0.001 −0.003 −0.002 0.051 0.049 0.066  
Smoking duration 60 years 0.006 0.001 0.000 −0.002 −0.007 0.051 0.048 0.058 0.25