Percentage of burns Control group Heparin group   No. (%) No. (%) NS or S 5-15 9 (18) 10 (20) NS 16-25 14(28) 15(30) NS 26-35 14 (28) 16(32) NS 36-50 13 (26) 09 (18) NS

Table 3: Distribution of patients by percentage of burns (p<0.01).