Table 2 Results of subgroup analysis
Factors | Pneumothorax | Chest tube placement | ||||||
|---|---|---|---|---|---|---|---|---|
Subgroup | RR(95%CI) | P | I2 | Subgroup | RR(95%CI) | P | I2 | |
Design | RCT (n = 2) | 0.49(0.19–1.28) | 0.15 | 74% | RCT(n = 2) | 0.32(0.08–1.30) | 0.11 | 51% |
Cohort study (n = 7) | 0.67(0.54–0.83) | 0.00 | 70% | Cohort study (n = 7) | 0.47(0.31–0.70) | 0.00 | 52% | |
Guidance method | Conventional CT (n = 6) | 0.57(0.44–0.73) | 0.00 | 58% | Conventional CT (n = 6) | 0.38(0.25–0.57) | 0.00 | 45% |
Fluoroscopy CT (n = 2) | 0.69(0.59–0.82) | 0.00 | 0% | Fluoroscopy CT (n = 2) | 0.61(0.31–1.22) | 0.16 | 42% | |
Blood status | Clotted (n = 4) | 0.49(0.33–0.72) | 0.00 | 62% | Clotted (n = 4) | 0.37(0.19–0.71) | 0.003 | 56% |
Non-clotted (n = 4) | 0.69(0.60–0.78) | 0.00 | 0% | Non-clotted (n = 4) | 0.47(0.29–0.76) | 0.002 | 46% | |