GROUP AGE mean ± SD (in years) Weight mean ± SD (kg) Duration of surgery (in minutes)
1 6.40 ± 1.42 18.40 ± 2.12 65.96 ± 5.35
2 6.53 ± 1.27 17.93 ± 2.70 68.80 ± 7.50
3 6.60 ± 1.07 18.27 ± 3.05 66.03 ± 7.95
  p-value>0.05 p- value -0.782 p-value-0.08
The mean difference is significant at p-value<0.05 and highly significant at p-value<0.001.
Table 1: Comparison of mean age and mean weight in the three groups.