Table 1.
Detailed characteristics of 19 articles included in the systematic review on the prevalence of anemia during pregnancy in Iran
| Place of study (source) | Time of study | Place of sampling | Sample size | Hb cut-off point (gr/dl) | prevalence of anemia | Ferritin cut-off point for IDA (ng/dl) | Prevalence of iron deficiency | Mean serum ferritin |
|---|---|---|---|---|---|---|---|---|
| Orumie (27)* | 1998 | Urban | 400 | 11 | 4.3 | -- | 13.8 | -- |
| Eslam-shahr (28)* | 2004 | Urban | 266 | 11 | -- | -- | -- | -- |
| Isfahan (29)* | 1999 | Urban | 799 | 11 | 14.2 | 15 | 50.9 | 19.9 |
| Babol (30)* | 2000 | -- | 214 | 10.5 ** | 9.4 | -- | -- | -- |
| Babol (31) | 2004 | -- | 871 | 10.5 | 6.4 | -- | -- | -- |
| Bandar-abbas (5)* | 2001 | Both | 401 | 11 | 17.5 | 10 | 37.3 | -- |
| Tehran (32) | 1995 | -- | 417 | -- | -- | -- | 34.8 | -- |
| Tehran (7) | 2002 | Urban | 970 | 12 | 14.9 | -- | -- | -- |
| Tehran (8) | 2003 | Urban | 302 | -- | 8.6 | -- | -- | -- |
| Tehran (33) | 2004 | Urban | 308 | -- | -- | -- | -- | -- |
| Zahedan (6) | 2003 | Urban | 287 | 10.5 | 12.9 | 12 | 42.2 | -- |
| Semnan (34) | 1999 | Urban | 691 | -- | 16.9 | -- | -- | -- |
| Shiraz (35)* | 1999 | Urban | 263 | 11 | 16.7 | -- | 28.5 | 24.9 |
| Shiraz (36) | 2002 | Urban | 2000 | 10.5 | 9 | -- | -- | -- |
| Fars province (37)* | 1996 | Both | 3371 | 11 | 4.1 | -- | -- | -- |
| Kermanshah (38)* | 1999 | Urban | 326 | 11 | 17.2 | 12 | 25.8 | -- |
| Varamin (39)* | 1993 | -- | 251 | 11 | 26.1 | -- | -- | -- |
| Hamedan (40)* | 2000 | Urban | 378 | 11 | 4.8 | -- | -- | -- |
| Several regions of Iran (4)* | 2001 | Both | 4368 | 11 | 21.5 | 12 | 11.2 | 41.7 |
If the date of a study had not been mentioned, it was calculated by reducing the average difference between the date of the performed research and the date of publication.
*
included studies into meta-analysis
**
The prevalence of Hb < 11 gr/dl is calculated by means of mean hemoglobin concentration and its standard deviation.