Table 3.

Association of child’s haemoglobin (Hb) with their early skills and infectious disease incidence

	Cum. development z-score	Respiratory disease or fever	Diarrhoea
	Marginal effects	ORs	ORs
Hb (child)	0.04*** (0.01 to 0.08)	1.02 (0.89 to 1.16)	0.99 (0.88 to 1.11)
Hb (mother)	0.02 (−0.01 to 0.05)	1.00 (0.89 to 1.12)	0.98 (0.88 to 1.08)
(Adjusted) R2	0.334	0.061	0.047
Controls	Yes	Yes	Yes
Tester fixed effects	Yes	Yes	Yes
FREDI fixed effects	Yes	No	No
N	915	938	933

The outcome variable in column (1) is the standardised total test score and the coefficients are shown in SD. Outcomes in columns (2) and (3) are binary variables and the coefficient are shown as ORs. 95% CIs using SEs clustered on village level are in parentheses. Included control variables: caste category, wealth quintile, food diversity in 2017, breast feeding, maternal age and literacy, first pregnancy (dummy), gestational trimester during Hb (preg.) measurement, ANC visit (dummy), child’s sex and age, and block dummies. Additional control variable in column (1): test version. Tester fixed effects are anthropometric test conductor fixed effects. FREDI fixed effects are child development test conductor fixed effects. Haemoglobin is measured in g/L. Inverse probability weight accounting for attrition applied.

Conventional significance level: *p<0.1, **p<0.05, ***p<0.01.