Table 2 Randomized trial quality scoring system
From: Parenteral glutamine supplementation in critical illness: a systematic review
| Â | Score | ||
|---|---|---|---|
0 | 1 | 2 | |
Randomization | … | Not concealed or not sure | Concealed randomization |
Analysis | Other | … | Intention-to-treat |
Blinding | Not blinded | Single-blind | Double-blinded |
Patient selection | Selected patients or unable to tell | Consecutive eligible patients | ….. |
Comparability of groups at baseline | No or not sure | Yes | …. |
Extent of follow-up | <100% | 100% | …. |
Treatment protocol | Poorly described | Reproducibly described | …. |
Co-interventions | Not described | Described but not equal or not sure | Well described and all equal |
Outcomes | Not described | Partially described | Objectively defined |