From: Systematic review of methods for individual patient data meta- analysis with binary outcomes
Analytic approach1 | n/N (%) | |
---|---|---|
One stage approach (n = 19) |  | |
Ignored clustering by study | Logistic regression | 5/19 (26%) |
Fixed effects | Logistic regression | 4/19 (21%) |
Random effects | Logistic regression | 10/19 (52%) |
Fixed study effect with random treatment effect2 | 1/10 (10%) | |
Random study effect with fixed treatment effect2 | 2/10 (20%) | |
Random study effect with random treatment effect2 | 2/10 (20%) | |
Unclear1 | 5/10 (50%) | |
Two stage approach (n = 6) |  | |
Fixed effects | Unspecified | 2/6 (33%) |
Cochrane-Mantel-Haenszel | 1/6 (17%) | |
Random effects | Der Simonian Laird | 2/6 (33%) |
Unspecified | 1/6 (17%) |