Table 1 Comparison of patients^, demographic and stone characteristics

Total Number

60

70

/

Gender, n(%)

0.575

 Male

42(70%)

49(70%)

 Female

18(30%)

21(30%)

Age,(years)

54.6 ± 12.8

52.1 ± 11.1

0.227

BMI,(kg/m²)

24.7 ± 2.9

24.3 ± 3.4

0.439

Comorbidities, n(%)

 Diabetes Mellitus

16(26.7%)

21(30%)

0.412

 Hypertension

30(50%)

37(52.9%)

0.441

 Hyperuricemia

38(63.3%)

42(60%)

0.418

Urine Culture,n(%)

0.520

 Positive

11(18.3%)

12(17.1%)

 Negative

49(81.7%)

58(82.9%)

History of Stone Surgery,n(%)

 PCNL

8(13.3%)

11(15.7%)

0.449

 RIRS

6(10%)

6(8.6%)

0.507

 Open or Laparoscopic surgery

1(1.7%)

-

0.462

Urine pH

5.4 ± 0.5

5.5 ± 0.4

0.119

Serum Creatinine,(umol/L)

89.85 ± 30.81

84.01 ± 20.62

0.215

Preoperative Electrolyte, (mmol/L)

 potassium

4.0 ± 0.5

4.1 ± 0.4

0.476

 sodium

139.9 ± 2.5

139.7 ± 2.2

0.765

Cumulative Stone Burden,(mm)

23.8 ± 3.2

22.8 ± 3.1

0.081

Stone Density,(Hu)

488.4 ± 105.8

481.7 ± 91.7

0.701

Stone Number,n(%)

0.484

 single

32(53.3%)

36(51.4%)

 multiple

28(46.75%)

34(48.6%)

Stone Laterality,n(%)

0.358

 Right

17(28.3%)

23(32.9%)

 Left

43(71.7%)

47(67.1%)