标题：Associations Between Childhood Intelligence and Hospital Admissions for Unintentional Injuries in Adulthood: The Aberdeen Children of the 1950s Cohort Study
摘要：Objectives. We examined associations between childhood intelligence and hospital admissions for injuries in adulthood. Methods . Data were derived from a cohort study (=11103) involving individuals born in Aberdeen, Scotland, between 1950 and 1956. Results. Overall, 1043 cohort members had at least 1 hospital admission resulting from an unintentional injury over 231152 person-years of risk. There were inverse linear associations between childhood intelligence assessed at the ages of 7, 9, and 11 years and having had a hospital admission stemming from an unintentional injury (gender-adjusted hazard ratio [HR] for a 1-standard-deviation increase in intelligence test score at age 7 years = 0.75; 95% confidence interval [CI]=0.70, 0.80). These associations were not markedly affected by adjustment for childhood socioeconomic status, maternal age or height, birthweight, or childhood growth. However, they were attenuated after adjustment for educational attainment (HR=0.85; 95% CI=0.78, 0.91). Conclusions. Childhood intelligence is related to hospital admissions for injuries in adulthood, and this relationship is partly explained by educational attainment. The association between childhood intelligence and injury may contribute to the association between childhood intelligence and premature mortality demonstrated in several studies. Unintentional injuries among adults are an important public health problem resulting in substantial morbidity, disability, and premature mortality. 1 , 2 Injury risk has been shown to be related to educational attainment and socioeconomic position, 1 , 2 but the extent to which this association reflects cognitive capabilities is unknown. Over the past few years, there has been increasing interest in the association between childhood cognitive ability and later health, 3 with studies indicating that childhood intelligence is inversely related to all-cause mortality and other adverse health outcomes. 4 – 7 Little is known about the association between cognitive ability early in life and later injury. To our knowledge, only 1 study has assessed this relationship. In the Australian Veterans Health Study, there was a strong inverse linear association between intelligence assessed in early adulthood and deaths resulting from motor vehicle accidents. 8 Associations with other forms of injury or with non-fatal injuries were not assessed. For our study, we examined the association of childhood intelligence measured at 3 different ages (7, 9, and 11 years) with hospital admissions for unintentional injuries in adulthood.
