Table 1. Gambian seasonality-methylation analysis: cohort characteristics.

Cohort	Sample size	Age	% male	Tissue	Methylation array
ENID (2 yr)	233	2 years	50.6	Peripheral blood	Illumina Infinium HM450
ENID (5–7 yr)	138	5–7 years	56.5		Illumina Infinium MethylationEPIC
EMPHASIS	289	7–9 years	54.3	Peripheral blood	Illumina Infinium MethylationEPIC

Note: ENID: Early Nutrition and Immune Development Trial (Moore et al., 2012); EMPHASIS: Epigenetic Mechanisms linking Pre-conceptional nutrition and Health Assessed in India and Sub-Saharan Africa (Chandak et al., 2017). Individuals with ENID longitudinal (5–7 yr) methylation data are a subset of those with methylation at 2 yr. There is no overlap between individuals included in the ENID and EMPHASIS cohorts.