Patients who underwent cholecystectomy as a first step had a significantly shorter length of hospital stay ( median , @ days -LSB- interquartile range -LCB- IQR -RCB- , @-@ -RSB- vs median , @ days -LSB- IQR , @-@ -RSB- ; P < @ ) , with fewer common duct investigations ( @ vs @ ; P < @ ) , no significant difference in morbidity or quality of life .