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Table 2 Evaluation of methodological qualities of included randomized controlled trials

From: Colonic J-pouch versus side-to-end anastomosis for rectal cancer: a systematic review and meta-analysis of randomized controlled trials

Items/author Huber Jiang Okkabaz Parc Doeksen Machado Marti
Described as randomized 1 1 1 1 1 1 1
Appropriate randomization method described 1 1 1 1 1 1 1
Subject blinded to intervention 0 0 1 0 0 0 0
Evaluator blinded to intervention 0 0 0 0 0 0 0
Description of withdrawals and dropouts 0 1 1 1 1 1 1
Score 2 3 4 3 3 3 3
  1. Methodological qualities of included randomized controlled trials were assessed by modified Jadad score system. Total score, 5; 1–2, low quality trial; 3–5, high quality trial