Regression summary table
   M1 M2
   b ll ul b ll ul
lowage 0.9580.893 1.026
   lwt 0.9860.973 0.9990.9850.972 0.997
   smoke1.7400.886 3.4171.7570.898 3.438
   ptl 1.8120.916 3.5861.7060.874 3.330
   ht 6.5021.67925.1766.7161.75125.756
   ui 2.0950.856 5.1262.1590.889 5.245
   ftv 1.0240.729 1.437