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| Parameter | LC (N=100) | OC (N=100) | Value of difference (P and t values) |
|---|---|---|---|
| Age (in years) (mean ± SD) | 42.2±13.0 | 46.1±10.9 | t value =1.642, P value =0.104NS |
| Sex (male:female) | 7:43 | 6:44 | χ2 =0.088, P value =1.000NS |
| Duration of surgery (in minutes) (mean ± SD) | 57.7±10.4 | 61.8±7.5 | t value =4.435, P value =0.109NS |
NS, nonsignificant; LC, laparoscopic cholecystectomy; OC, open cholecystectomy; SD, standard deviation.
