There was a highly significant effect of Sex, girls having overall higher scores both on the cognitive (mean difference 6.09, 95% CI [3.00, 9.18]) and language (mean difference 5.26, 95% CI [2.23, 8.39]) scales compared to boys.
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Sex Differences in Early Cognitive Development After Prenatal Exposure to Opioids.
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The sentences
There was a significant Group × Sex interaction effect, and group differences between opioid-exposed and nonexposed girls did not reach statistical significance for either scale.