Fig. 3From: The strong focus on positive results in abstracts may cause bias in systematic reviews: a case study on abstract reporting biasForest plot based on the full sample. NB. The 28 articles in the full sample contain 31 unique associations between DEE and bladder cancer. I² = 43.6%, p = 0.006. E = Expected number of cases, O = Observed number of cases ES = Effect SizeBack to article page