Table 1 The characteristics of studies included
First author | References | Year of publication | Region | Age of mothers (Mean ± SD) | Age of baby (month) | Sample size | Study design | Quality rating of the studies (Stars) (risk of bias) |
|---|---|---|---|---|---|---|---|---|
Imani | 31 | 2003 | Zahedan | NA | 6–24 | 253 | Cross-sectional | 6 stars |
Hajian-Tilaki | 32 | 2005 | Babol | NA | 6 | 600 | Cross-sectional | 8 stars |
khabazkhoob | 33 | 2008 | Mashhad | NA | 7–12 | 1267 | Cross-sectional | 7 stars |
Koosha | 34 | 2008 | Zanjan | NA | 12 | 50 | Cross-sectional | 6 stars |
Mohsenzadeh | 35 | 2008 | Khorramabad | NA | 12 | 340 | Cross-sectional | 8 stars |
Mohammad Beygi | 36 | 2009 | Arak | NA | 6–12 | 352 | Cross-sectional | 9 stars |
Olang | 37 | 2009 | 30 provinces | NA | < 24 | 63,071 | Retrospective | 8 stars |
Roudbari | 38 | 2009 | Zahedan | 25.5 ± 6.2 | 12 | 450 | Cross-sectional | 7 stars |
Almasi | 39 | 2010 | Kashan | NA | 6 | 391 | Cross-sectional | 8 stars |
Vafaee | 40 | 2010 | Mashhad | NA | 12 | 1450 | Cross-sectional | 9 stars |
Hamidi | 41 | 2011 | Charmahalva Bakhtiari | 29.25 ± 5.5 | < 12 | 411 | Descriptive-analytical | 7 stars |
Mehrparvar | 42 | 2011 | Kerman | NA | < 12 | 320 | Cross-sectional | 7 stars |
Naserpoor | 43 | 2011 | Omidieh | 27.5 ± 5.5 | 6–18 | 400 | Descriptive-analytical | 8 stars |
Rahmatnejad | 44 | 2011 | Tehran | NA | 12 | 331 | Cross-sectional | 8 stars |
Torabi | 45 | 2011 | Jahrom | 28.1 ± 5.36 | 18–24 | 435 | Cross-sectional | 7 stars |
Veghari | 46 | 2011 | Golestan | NA | 6–60 | 2520 | Cross-sectional | 8 stars |
Yaghini | 47 | 2011 | Isfahan | NA | 12 | 656 | Descriptive-analytical | 6 stars |
Kermani | 48 | 2012 | Tehran | NA | 6 | 110 | Cross-sectional | 9 stars |
Mirahmadizadeh | 49 | 2012 | Shiraz | NA | 6–12 | 751 | Historical cohort | 8 stars |
Morowatisharifabad | 50 | 2012 | Ardakan | NA | 6–12 | 413 | Cross-sectional | 8 stars |
Ziaie | 51 | 2012 | Rasht | 30.93 ± 4.801 | < 12 | 263 | Descriptive-analytical | 7 stars |
Charkazi | 52 | 2013 | Isfahan | 27.79 + 4.7 | 6–24 | 406 | Cross-sectional | 8 stars |
Kamali | 53 | 2013 | Tehran | 28.9 ± 4.6 | 12–24 | 300 | Cross-sectional | 6 stars |
Khamnian | 54 | 2013 | East Azerbaijan | NA | 12 | 750 | Cross-sectional | 8 stars |
Saki | 55 | 2013 | Shiraz | NA | 12 | 287 | Prospective follow-up | 7 stars |
Abdollahi | 56 | 2014 | Sari | 27.99 ± 4.7 | < 12 | 400 | Cross-sectional | 9 stars |
Aghababaii | 57 | 2014 | Hamadan | 26.7 ± 4.8 | 12 | 1200 | Cross-sectional | 8 stars |
Dalili | 58 | 2014 | Tehran | NA | 6 | 175 | Cross-sectional | 7 stars |
Ghanbarnejad | 59 | 2014 | Bandar Abbas | 25.7 ± 5.6 | 6 | 800 | Cross-sectional | 7 stars |
Noughabi | 60 | 2014 | Tehran | NA | 6–24 | 538 | Cross-sectional | 8 stars |
Ranjbaran | 61 | 2014 | Shazand | NA | 6 | 283 | Cross-sectional | 8 stars |
Roostaee | 62 | 2015 | Zahedan | NA | 12 | 523 | Cross-sectional | 9 stars |