Table 3. Subgroup analysis of trials in the last 10 years: stenting vs. non-stenting.
| Outcome of interest | No. of studies | No. of patients | OR/WMD (95% CI)† | p-value | Study heterogeneity | |||
|---|---|---|---|---|---|---|---|---|
| Stented/Unstented | Chi2 | df | I2 | p-value | ||||
| Operation time, min | 11 | 689/686 | 4.18 [1.05, 7.31]† | 0.009 | 99.45 | 10 | 90% | <0.001 |
| Readmission rate | 6 | 462/460 | 0.74 [0.42, 1.31] | 0.30 | 5.42 | 5 | 8% | 0.37 |
| Hospital stay, day | 4 | 119/125 | 1.97 [-0.12, 4.05]† | 0.06 | 4.41 | 3 | 32% | 0.22 |
| Stone free rate | 6 | 318/339 | 0.53 [0.31, 0.89] | 0.02 | 2.14 | 5 | 0% | 0.83 |
| Visual analogue score | 6 | 352/345 | 0.40 [-0.08, 0.88]† | 0.10 | 38.15 | 5 | 87% | <0.001 |
| Pain rate | 10 | 692/692 | 2.67 [1.26, 5.65] | 0.01 | 54.26 | 9 | 83% | <0.001 |
| Dysuria rate | 7 | 490/488 | 3.60 [2.66, 4.86] | <0.001 | 7.94 | 6 | 24% | 0.24 |
| Hematuria rate | 8 | 494/494 | 3.31 [1.55, 7.05] | 0.002 | 24.55 | 7 | 71% | <0.001 |
| Irritative symptom rate | 6 | 414/411 | 4.23 [1.64, 10.91] | 0.003 | 34.13 | 5 | 85% | <0.001 |
| Urinary infection rate | 5 | 405/403 | 2.01 [0.98, 4.14] | 0.06 | 10.66 | 4 | 62% | 0.03 |
| Fever rate | 6 | 352/352 | 0.83 [0.51, 1.35] | 0.45 | 0.77 | 5 | 0% | 0.98 |
CI = confidence interval; OR = odds ratio; WMD = weighted mean difference
†Values of WMD.
Statistically significant results are shown in bold.