Table 2 Results of meta-analysis comparing baseline characteristics between LAP and OPEN
Baseline characteristic | Studies | LAP | OPEN | Heterogeneity | Overall | 95% CI of | P |
|---|---|---|---|---|---|---|---|
(P, I 2) | effect size | overall effect | |||||
Gender (male/female) | 6 | 56/57 | 64/58 | 0.37, 0% | OR = 0.85 | 0.50, 1.43 | 0.53 |
Age | 5 | 0.24, 27% | WMD = −2.29 | −6.24, 1.65 | 0.25 | ||
Tumor size | 6 | <0.05, 69% | WMD = −0.54 | −1.23, 0.15 | 0.13 | ||
Tumor location | |||||||
Upper /Middle | 5 | 47/33 | 52/64 | 0.23, 29% | OR = 1.27 | 0.66, 2.42 | 0.47 |
Upper/ Lower | 5 | 47/15 | 52/8 | 0.27, 23% | OR = 0.64 | 0.25, 1.66 | 0.36 |
Mitotic index (≤5/>5) | 5 | 55/31 | 68/40 | 0.69, 0% | OR = 0.96 | 0.52, 1.75 | 0.89 |
Risk classification | |||||||
Intermediate/High | 5 | 41/27 | 36/37 | 0.57, 0% | OR = 1.58 | 0.81, 3.12 | 0.18 |