Research on the effects of prenatal care on birth outcomes has produced a patchwork of findings that are not easily summarized. Studies have used varying definitions of prenatal care, leading to estimates that are difficult to compare. The identification of causal effects is particularly...

Developmental disabilities are not rare among U.S. children and rates have been increasing in recent decades. The increases have been driven by cognitive and behavioral disorders. While some studies have investigated the effects of specific childhood conditions, particularly ADHD, on adult...