Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Jadad quality score of trials included in meta-analysis24
| Year | Randomisation method | Blinding | Withdrawals/drop outs accounted for | Jadad score | |
|---|---|---|---|---|---|
| McClave, 199728 | 1997 | Not stated | None | Yes | 2 |
| Windsor, 199829 | 1998 | Odd/even hospital number | None | Yes | 1 |
| Kalfarentzos, 199730 | 1997 | Sealed numbered envelopes | None | Yes | 3 |
| Abou-Assi, 200219 | 2002 | Not stated | None | Yes | 2 |
| Olah, 200218 | 2002 | Birth date | None | Yes | 1 |
| Gupta, 200331 | 2003 | Sealed numbered envelopes | None | Yes | 3 |
