Table 3.
The comparison of one session stone free rate (SFR) and estimated OR for non-one session stone free
| Variables | One session stone free | p-value | Multivariate analysis | |
|---|---|---|---|---|
| Yes (n = 250) | No (n = 60) | aOR (95%CI) | ||
| Demography | ||||
| Age | 50 (42.00–59.00) | 46.5 (35.50–58.00) | 0.176 | – |
| Gender | 0.525 | – | ||
| Male | 161 (81.73) | 36 (18.27) | ||
| Female | 89 (78.76) | 24 (21.24) | ||
| BMI | 24.81 (22.86–26.99) | 24.42 (22.90–26.93) | 0.634 | – |
| Stent in ureter | 0.320 | – | ||
| Yes | 47 (85.45) | 8 (14.55) | ||
| No | 203 (79.61) | 52 (20.39) | ||
| Infection | 0.105 | – | ||
| Yes | 188 (78.66) | 51 (21.34) | ||
| No | 62 (87.32) | 9 (12.68) | ||
| Disease history | ||||
| Stone | < 0.001 | 2.39 (1.21, 4.73) | ||
| Yes | 73 (69.52) | 32 (30.48) | ||
| No | 177 (86.34) | 28 (13.66) | ||
| Other kidney diseases | 0.770a | – | ||
| Yes | 15 (78.95) | 4 (21.05) | ||
| No | 235 (80.76) | 56 (19.24) | ||
| DM | 0.363 | – | ||
| Yes | 41 (85.42) | 7 (14.58) | ||
| No | 209 (79.77) | 53 (20.23) | ||
| Hypertension | 0.597 | – | ||
| Yes | 71 (82.56) | 15 (17.44) | ||
| No | 179 (79.91) | 45 (20.09) | ||
| Medicine user and weakness | 0.847 | - | ||
| Yes | 27 (79.41) | 7 (20.59) | ||
| No | 223 (80.8) | 53 (19.2) | ||
| Operation | ||||
| Operation time | 75 (60.0–105.0) | 99 (70.0–144.0) | < 0.001 | 1.01 (1.00, 1.01) |
| Stone number | < 0.001 | |||
| Single | 133 (93.66) | 9 (6.34) | 1 | |
| Multiple | 117 (69.64) | 51 (30.36) | 1.11 (0.34, 3.60) | |
| Stone size(mm) | < 0.001 | |||
| < 20 | 130 (91.55) | 12 (8.45) | 1 | |
| 20–29 | 77 (82.80) | 16 (17.20) | 1.34 (0.54, 3.36) | |
| 30–39 | 26 (72.22) | 10 (27.78) | 1.67 (0.53, 5.26) | |
| 40–49 | 7 (41.18) | 10 (58.82) | 4.37 (1.16, 16.45) | |
| ≥ 50 | 10 (45.45) | 12 (54.55) | 2.41 (0.58, 9.96) | |
| Composition | 0.368 | |||
| Calcium oxalate | 55 (78.57) | 15 (21.43) | – | |
| Calcium phosphate | 18 (78.26) | 5 (21.74) | – | |
| Uric acid and magnesium ammonium phosphate | 12 (100.00) | 0 (0.00) | – | |
| Complex | 165 (80.49) | 40 (19.51) | – | |
| Hydronephrosis | 0.806 | |||
| Grade 0 | 38 (80.85) | 9 (19.15) | – | |
| Grade I | 97 (80.83) | 23 (19.17) | – | |
| Grade II | 87 (82.86) | 18 (17.14) | – | |
| Grade III | 26 (74.29) | 9 (25.71) | – | |
| Grade VI | 2 (66.67) | 1 (33.33) | – | |
| CT value (ml) | 0.06 | |||
| ≤ 1000 | 181 (83.41) | 36 (16.59) | 1 | |
| > 1000 | 69 (74.19) | 24 (25.81) | 1.22 (0.59, 2.52) | |
| Guy’s stone score | <0.001a | |||
| Grade I | 158 (93.49) | 11 (6.51) | 1 | |
| Grade II | 81 (71.05) | 33 (28.95) | 3.54 (1.18, 10.59) | |
| Grade III | 8 (40.00) | 12 (60.00) | 10.95 (2.65, 45.25) | |
| Grade VI | 3 (42.86) | 4 (57.14) | 2.18 (0.23, 21.21) | |
The significance of bold values were p < 0.05
SFR stone free rate, aOR adjusted Odds ratio, BMI body mass index, DM diabetes mellitus; CT computer tomography
Continuous data without normal distribution are presented as median (interquartile) and performed by Wilcoxon rank; Categorical data are presented as n (%) and performed by the Chi-squared test or aFisher’s exact test, as appropriate