| Study | Reason for exclusion |
|---|---|
| Blish 2010 | This manuscript presents further analyses using data already presented in Walson 2008 KEN |
| Brown 2004 | Observational, prospective cohort study. |
| Brown 2005 | Observational, prospective cohort study. |
| Elliott 2003 | Observational, prospective cohort study. |
| Elliott 2007 | Study protocol for included study Webb 2012 UGA. |
| Erikstrup 2008 | This manuscript presents further analyses using data already presented in Kallestrup 2005 ZWE. |
| Esan 2013 | A RCT with non‐relevant intervention (that is, iron supplementation and multivitamins) to assess effects of anaemia in children 6 to 59 months of age. |
| Finkelstein 2012 | Observational, prospective cohort study. |
| Fischer 1995 | Observational, prospective cohort study. |
| Gallagher 2005 | Observational, retrospective cohort study. |
| Ganley‐Leal 2006 | Observational, prospective cohort study. |
| Geelhoed 2006 | Observational, prospective case‐control study, with irrelevant outcomes to this Cochrane Review. |
| Heath 1996 | Case study of a single participant. |
| Hosseinipour 2007 | Observational, cross‐sectional study. |
| Ivan 2015 | Observational, cross‐sectional study. |
| Joseph 2004 | Observational, prospective cohort study. |
| Kallestrup 2006 | This manuscript presents further analyses using data already presented in Kallestrup 2005 ZWE. |
| Karanja 1998 | Observational, prospective cohort study. |
| Kassu 2003 | Observational, prospective cohort study. |
| Kipp 2005 | Observational, prospective cohort study. |
| Kleppa 2014 | Observational, case‐control study. |
| Lankowski 2014 | Observational retrospective cohort study. |
| Lawn 2000 | Observational, prospective cohort study with no comparison group. |
| McElroy 2005 | Observational, cross‐sectional study. |
| Modjarrad 2005 | Observational, prospective cohort study. |
| Mulu 2013 | Observational, prospective cohort study. |
| Muok 2013 | Observational, prospective cohort study |
| Mwanakasale 2003 | Observational, prospective cohort study. |
| Ndibazza 2012 | A RCT with irrelevant outcomes to this Cochrane Review. The study authors hypothesize that antihelminthic treatment in pregnancy and early childhood would improve responses to immunization and modulate disease incidence in early childhood. |
| Watanabe 2007 | Observational, prospective cohort study. |
| Wolday 2002 | Observational, prospective cohort study. |
| Zinyama 2009 | Observational, prospective cohort study. |
| Zulu 2002 | Observational, prospective cohort study. |
Abbreviations: RCT: randomized controlled trial.