Study (quality) country (outcome age) | Neurodevelopmental assessment tool | ||||
BSID | MICS ECDI | Denver | IDI | ICMR | |
Dwivedi et al 2018 (+) India (childhood)21 | Effect (unadjusted)* | ||||
Kang et al 2018 (+) multiple in Asia (childhood)22 | No effect (adjusted) | ||||
Abessa et al 2017 (++) Ethiopia (childhood)24 | Effect (adjusted) | ||||
Sudfeld et al 2015 (++) Tanzania (childhood)25 | Effect (adjusted) | ||||
Malhi et al 2013 (-) India (childhood)27 | No effect (adjusted) | ||||
El-Khayat et al 2007 (+) Egypt (childhood)32 | Effect (unadjusted) | ||||
Drewett et al 2001 (++) Ethiopia (childhood)35 | No effect (adjusted) | ||||
Vazir et al 1998 (+) India (childhood)36 | Effect (unadjusted) | ||||
Kaul et al 1995 (+) India (childhood)38 | Effect (unadjusted) |
Effect (marked in green) —statistically significant difference in neurodevelopment between cases and controls.
No effect (marked in red)—no difference, or statistically insignificant difference, or statistically insignificant difference after adjusting for confounding variables, in neurodevelopment between cases and controls.
Adjusted—results adjusted for confounding variables.
Unadjusted—results unadjusted for confounding variables.
++=high quality.
+=adequate quality.
-=poor quality.
*Indian modification of BSID.
BSID, Bayley Scales of Infant Development; ICMR, Indian Council Medical Research Psychosocial Developmental Screening Test; IDI, Indian Developmental Inventory; MICS ECDI, Multiple Indicator Cluster Survey Early Child Development Index.