| Random-isation Described/Allocation Concealment | Researcher/Outcome Assessor/Participants Masked to intervention | Change in iron status OR 12+ wks?* | All those randomised included in outcomes?/Reason for dropouts reported? | Potential for funding bias** | Study data useable in meta-analysis? |
---|---|---|---|---|---|---|
Beard 2005 | Partially/Unclear | Unclear/Unclear/Yes | Yes (SF, 29 wks) | No/Partially | Moderate | Yes |
Bruner 1996 | Yes/Unclear | Yes/Unclear/Yes | Yes (Hb & SF) | No/Yes | High | No (no raw data, only regression) |
Elwood 1970 | No/Unclear | Unclear/Yes/Yes | Unclear (p-values not presented) | No/Partially | High | Yes |
Gopaldas 1985 | Partially/Unclear | No/No/Yes | Anaemic & Iron repl: Yes (Hb) | Yes/Yes (no drop-outs) | High | Yes |
Groner 1986 | No/Unclear | Yes/Yes/Yes | Yes (Hb) | No/Yes | Moderate | Yes |
Kashyap 1987 | Partially/Unclear | Unclear/Unclear/Yes | Anaemic & Iron repl: Yes (Hb, 17 wks) | No/Partially | Moderate | Yes |
Kordas 2005 | Yes/Unclear | Yes/Yes/Yes | Yes (21 wks) | No/Partially | Moderate | No (only z-scores) |
Lambert 2002 | No/Unclear | Yes/Unclear/Yes | Yes (SF, not Hb) | No/No | Moderate | No (no variance data) |
Lynn & Harland 1998 | Yes/Unclear | Yes/Yes/Yes | Iron Defic & Iron repl: Yes (16 wks) | Unclear/No | High | Yes |
Murray-Kolb 2007 | Yes/Unclear | No/Yes/Yes | Anaemic & Iron repl: Yes (SF, not Hb, 16 wks),Iron defic: No (not SF or Hb) | No/Partially | Moderate | No (reported only as z-scores) |
Pollitt 1989 | No/Unclear | Unclear/Unclear/Yes | Anaemic, Iron defic & Iron repl: Yes (Hb, SF, 16 wks) | No/No | Moderate | Yes |
Soemantri 1985 | No/Unclear | Unclear/Unclear/Unclear | Anaemic: Yes (Hb, 13 wks) Iron repl: No (Hb) | Unclear/No | Moderate | No (no variance or SD data) |
Soemantri 1989 | No/Unclear | Unclear/Unclear/Yes | Anaemic & Iron repl: Yes (Hb, 13 wks) | No/No | Moderate | Yes |
Sungthong 2004 | Yes/Yes | Yes/Yes/Yes | Yes (SF & Hb, 16 wks) | No/Yes | Low | Yes |