Table 1.
Comparison of demographic, laboratory, and radiological factors as predictors of spontaneous stone passage.
| Variable | Total | No SSP | SSP | p.value |
|---|---|---|---|---|
| Age(Year±SD) | 40.12 ± 12.36 | 42.27 ± 13.87 | 38.43 ± 10.81 | 0.050* |
| Gender | ||||
| Male (n,%) | 86(53.5) | 41(57.7) | 45(50) | 0.328** |
| Female (n,%) | 75(46.5) | 30(42.3) | 45(50) | |
| BMI(Kg/m2) | 22.47 ± 2.4 | 22.6 ± 2.35 | 22.29 ± 2.59 | 0.309* |
| Diabetic | ||||
| Yes (n,%) | 19(11.8) | 4(5.6) | 11(12.7) | 0.153** |
| No (n,%) | 142(88.2) | 67(9.4) | 79(87.7) | |
| Hypertension | ||||
| Yes (n,%) | 19(11.8) | 8(11.3) | 11(12.3) | 0.852** |
| No (n,%) | 142(88.2) | 63(88.7) | 79(87.8) | |
| WBC(mean ± SD) | 9462 ± 1861 | 9710 ± 1650 | 9267 ± 2001 | 0.136* |
| PLT mean ± SD) | 272.33 ± 48.6 | 293.9 ± 40.13 | 255.3 ± 48.1 | <0.001* |
| Neutrophil (%) | 63.59 ± 9.21 | 66.3 ± 7.7 | 61.4 ± 9.7 | 0.01* |
| PLR (mean ± SD) | 10.09 ± 3.8 | 11.47 ± 4.86 | 9.00 ± 2.30 | <0.001* |
| NLR (mean ± SD) | 2.39 ± 1.05 | 2.63 ± 1.35 | 2.20 ± 0.69 | 0.010* |
| Serum creatinine | 0.76 ± 0.16 | 0.74 ± 0.15 | 0.78 ± 0.17 | 0.109* |
| Stone size(mean ± SD) | 7.19 ± 1.68 | 7.76 ± 1.49 | 6.43 ± 1.60 | <0.001* |
| Stone location | ||||
| Upper(n,%) | 8(5) | 6(8.5) | 2(2.2) | |
| Mid(n,%) | 24(15) | 15(21) | 9(10) | 0.019** |
| Lower (n,%) | 129(80) | 50(70.4) | 79(87.8) | |
| HU | 710 | 726 ± 218 | 697 ± 215 | 0.403* |
| UWT | 2.42 ± 0.73 | 2.98 ± 0.67 | 1.98 ± 0.42 | <0.001* |
| HN | ||||
| No mild | 109(67.7) | 40(36.6) | 69(63.4) | 0.006** |
| Moderate-severe | 52(32.3) | 31(59.6) | 21(40.4) | |
BMI body mass index, WBC white blood cells, PLT platelet, PLR platelet lymphocyte ratio, NLR neutrophil lymphocyte ratio, UWT ureteral wall thickness, HU Hounsfield unit, SSP spontaneous stone passage, * independent t-test, ** chi-square test.