Document Classification

Section Type: RESULTS

Text: In the trial group and the control group, respectively : the postoperative stone-free rate was 76. 74 % and 79. 07 % (P = 0. 796) and the partial stone clearance rate was 23. 26 % and 20. 93 % (P = 0. 796), the operation time was (92. 49 76. 59) min and (87. 28 50. 01) min (P = 0. 485), the stone fragmentation and extraction time was (50. 16 57. 11) min and (40. 59 31. 01) min (P = 0. 976), the volume of extracted stones was (10. 85 20. 08) mL and (5. 05 6. 00) mL (P = 0. 041).