Table 1

 Dichotomised indices of disease severity (Killip class, Peel index, length of initial hospital stay, prescription of warfarin at discharge, and composite disease severity index) as predictors in multiple logistic regression analyses of cardiac and all cause mortality following acute MI

Variable4 months12 months36 months
Cardiac (n = 22)All cause (n = 25)Cardiac (n = 27)All cause (n = 31)Cardiac (n = 33)All cause (n = 38)
Data are represented as odds ratios and 95% confidence intervals.
Killip class2.90 (0.75 to 11.14)3.24 (0.86 to 12.19)4.32 (1.18 to 15.80)4.96 (1.38 to 17.85)4.43 (1.41 to 13.88)3.95 (1.40 to 11.16)
Peel index1.02 (0.26 to 4.05)1.82 (0.56 to 5.93)1.98 (0.64 to 6.07)2.53 (0.91 to 7.03)1.24 (0.41 to 3.79)1.63 (0.60 to 4.42)
Length of hospital stay4.10 (0.50 to 33.44)4.64 (0.58 to 37.26)2.56 (0.54 to 12.00)3.04 (0.66 to 14.03)2.16 (0.59 to 7.91)2.72 (0.76 to 9.71)
Warfarin at discharge6.63 (1.87 to 22.46)4.54 (1.36 to 15.16)4.75 (1.49 to 15.18)3.57 (1.15 to 11.08)6.80 (2.26 to 20.48)4.95 (1.71 to 14.30)
Composite severity index7.16 (2.41 to 21.23)9.20 (3.29 to 25.77)7.08 (2.68 to 18.68)7.93 (3.18 to 19.77)7.24 (2.96 to 17.71)7.48 (3.22 to 17.40)