Fig. 3: Subgroup analysis of studies on the weighted mean difference of intelligence scores between boys and girls with phthalates exposures.
From: Sex differences in children’s cognitive functions and phthalates exposure: a meta-analysis

a By study period, b by region, c by the timing of phthalate concentration assessment, and d by intelligence assessment tools. BSID-II Bayley Scales of Infant and Toddler Development Version II, H2 h-squared, IDS Intelligence and Development Scales, I2 I-squared, p p-value, KEDI-WISC Korean Educational Development Institute-Wechsler Intelligence Scale for Children, τ2 tau-squared, WIS Wechsler Intelligence Scale.