Table 4 Quality assessment of quantitative studies
Study | Design | Purpose | Data collection methods | Sampling & sample size | Definitions | Response rate | Measures of home circumstance &/or SES | Child data | Overall risk of bias |
|---|---|---|---|---|---|---|---|---|---|
Anselmi et al, 2008 16 Brazil | Optimum | Adequate | Optimum | Optimum | Optimum | Optimum | Adequate | Optimum | Low |
Bashir et al, 2002 Pakistan 17 | Optimum | Optimum | Optimum | Optimum | Optimum | Adequate | Adequate | Optimum | Low |
Bastos et al, 1995 Tanzania 18 | Adequate | Optimum | Optimum | Optimum | Optimum | Optimum | Least valuable (urban v. Rural) | Optimum | Medium |
Durkin et al, 1998 Pakistan 19 | Adequate | Optimum | Optimum | Optimum | Optimum | Optimum | Adequate | Optimum | Low |
Filmer 2005 9 low & middle income countries 20 | Adequate | Adequate | Optimum | Optimum | Optimum | Least valuable | Adequate | Optimum | Medium |
Filmer 2008 13 low & middle income countries 4 [NB: some overlap with Filmer 2005] 20 | Adequate | Adequate | Optimum | Optimum | Optimum | Least valuable | Adequate | Optimum | Medium |
Hackett et al, 1999 India 22 | Adequate | Optimum | Optimum | Optimum | Optimum | Adequate | Optimum | Optimum | Low |
Kandamuthan, 1997 India 24 | Adequate | Optimum | Optimum | Optimum | Optimum | Adequate | Optimum | Optimum | Low |
Kuklina, 2006 Guatemala 25 | Adequate | Optimum | Optimum | Adequate | Optimum | Adequate | Optimum | Optimum | Medium |
Loaiza & Cappa, 2005 7 low/middle income countries 26 | Adequate | Adequate | Optimum | Optimum | Optimum | Least valuable | Optimum | Optimum | Medium |
Meeks Gardner et al, 1995 & 1999 Jamaica 27, 28 [2 papers combined as same study described] | Adequate | Adequate | Optimum | Adequate | Optimum | Optimum | Adequate | Optimum | Medium |
Mung'ala-Odera et al, 2006 Kenya 29 | Adequate | Optimum | Optimum | Optimum | Optimum | Adequate | Adequate | Optimum | Medium |
Natale et al, 1992 India 30 | Adequate | Optimum | Optimum | Adequate | Optimum | Optimum | Least valuable | Optimum | Medium |
Rischewski, 2008 Rwanda 31 | Adequate | Optimum | Optimum | Adequate | Adequate | Optimum | Adequate | Optimum | Low |
Shawky, 2002 Saudi Arabia 32 | Adequate | Optimum | Optimum | Optimum | Optimum | Optimum | Adequate | Optimum | Low |
Suris & Blum, 1993 > 20 countries - high & low income 33 | Least valuable | Optimum | Adequate | Least valuable - only national rates given | Least valuable - no information on definitions used | Least valuable | Least valuable - only national level of female illiteracy given | Least valuable | High |
Izutsu al, 2006 Bangladesh 34 | Adequate | Optimum | Optimum | Adequate | Optimum | Optimum | Least valuable | Optimum | Medium |
UNICEF, 2008 18 low/middle income countries 2 | Adequate | Adequate | Optimum | Optimum | Optimum | Least valuable | Adequate | Optimum | Medium |
VanLeit et al, 2007 Cambodia 38 | Least valuable | Optimum | Adequate | Adequate | Optimum | Optimum | Adequate | Optimum | High |