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Table 2 Summary of the perioperative outcomes between U-VATS and M-VATS in this meta-analysis

From: Uniportal versus multiportal video-assisted thoracoscopic anatomical resection for NSCLC: a meta-analysis

Comparative outcomes Number of studies Study group SMD/WMD/OR 95%CI P value Heterogeneity (I2,P) Meta-analysis model
Uniportal Multiportal
Intraoperative Outcomes
 Operation time 18 1732 1967 -0.04 −0.33 ~ 0.26 0.81 I2 = 94%, p < 0.01 Random
 Blood loss 14 1374 1590 −0.14 − 0.35 ~ 0.06 0.18 I2 = 86%, P < 0.01 Random
 Number of resected lymph nodes 15 1391 1618 0.03 −0.08 ~ 0.13 0.62 I2 = 45%, p = 0.03 Random
 Conversion rate 13 1375 1358 1.27 0.83 ~ 1.94 0.14 I2 = 13%, P = 0.32 Fixed
Postoperative Outcomes
 Drainage duration 18 1322 1411 −0.13 −0.27 ~ 0.02 0.09 I2 = 68%, p < 0.01 Random
 Length of postoperative stay 12 1219 1271 −0.37 −0.81 ~ 0.08 0.22 I2 = 96%, p < 0.01 Random
 Pain in POD1 5 234 313 −0.78 −1.61 ~ 0.05 0.07 I2 = 97%, p < 0.01 Random