There were statistically highly significant (P < 0.01) differences in the mean values of APACHE II score (21.11 ± 3.70 vs 24.21 ± 3.82), SOFA score (5.83 ± 2.64 vs 8.85 ± 2.17) and CPIS (7.55 ± 1.14 vs 8.64 ± 1.39) between the expired group and survivors respectively.