Table II.
Quality of included studies.
| Study | Truly random | Random allocation | Equivalence of baseline features | Eligibility criteria | Blinding assessment | Loss to follow-up | Intent to treat | Study quality |
|---|---|---|---|---|---|---|---|---|
| Herbst et al (21) | Yes | Yes | Yes | Yes | Yes | Unclear | Yes | High |
| Gatzemeier et al (20) | Yes | Yes | Yes | Yes | Yes | Yes | Unclear | High |
| Mok et al (30) | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | High |
| Cappuzzo et al (16) | Yes | Yes | Yes | Yes | Yes | Unclear | Yes | High |
| Perol et al (32) | Yes | No | Yes | Yes | Yes | Unclear | Yes | Fair |
| Kabbinavar et al (31) | Yes | Yes | Yes | Yes | Unclear | Unclear | Yes | Fair |