A Abbreviations

Section	Abbreviation	Description
2.2	GCDG-BGD-7MO	The Bangladesh study of the GCDG (Tofail et al. 2008)
2.2	GCDG-BRA-1	The Brazil 1 study of the GCDG (Victora et al. 2006)
2.2	GCDG-BRA-2	The Brazil 2 study of the GCDG (Moura et al. 2010)
2.2	GCDG-CHL-1	The Chile 1 study of the GCDG (Lozoff et al. 2003)
2.2	GCDG-CHL-2	The Chile 2 study of the GCDG (Conteras and González 2015)
2.2	GCDG-CHN	The China study of the GCDG (Lozoff et al. 2016)
2.2	GCDG-COL-LT45M	The Colombia 1 study of the GCDG (Attanasio et al. 2014)
2.2	GCDG-COL-LT42M	The Colombia 2 study of the GCDG (Rubio-Codina et al. 2016)
2.2	GCDG-ECU	The Ecuador study of the GCDG (Paxson and Schady 2010)
2.2	GCDG-ETH	The Ethiopia study of the GCDG (Hanlon et al. 2009)
2.2	GCDG-JAM-LBW	The Jamaica 1 study of the GCDG (Walker et al. 2004)
2.2	GCDG-JAM-STUNTED	The Jamaica 2 study of the GCDG (Grantham-McGregor et al. 1991)
2.2	GCDG-MDG	The Madagascar study of the GCDG (Lia C. H. Fernald et al. 2011)
2.2	GCDG-NLD-SMOCC	The Netherlands 1 study of the GCDG (Herngreen et al. 1992)
2.2	GCDG-NLD-2	The Netherlands 2 study of the GCDG (Doove et al. 2019)
2.2	GCDG-ZAF	The South Africa study of the GCDG (Richter et al. 2007)
2.3	by1	Bayley Scale for Infant and Todler Development version 1 (Bayley 1969)
2.3	by2	Bayley Scale for Infant and Todler Development version 2 (Bayley 1993)
2.3	by3	Bayley Scale for Infant and Todler Development version 3 (Bayley 2006)
2.3	den	Denver Developmental Screening Test (Frankenburg et al. 1992)
2.3	gri	Griffiths Mental Development Scales (Griffiths 1967)
2.3	bat	Battelle Developmental Inventory (Newborg 2005)
2.3	vin	Vineland Social Maturity Scale (Doll 1953)
2.3	ddi	Dutch Developmental Instrument (Schlesinger-Was 1981)
2.3	bar	Barrera Moncada (Barrera Moncada 1981)
2.3	tep	Test de Desarrollo Psicomotor (Haeussler and Marchant 1999)
2.3	aqi	Ages and Stages Questionnaire (Squires and Bricker 2009)
2.3	sbi	Stanford Binet Intelligence Scales (Roid 2003)