TY - JOUR T1 - General anaesthesia under the age of 4 years has minimal impact on future academic performance JF - Archives of disease in childhood - Education & practice edition JO - Arch Dis Child Educ Pract Ed SP - 276 LP - 276 DO - 10.1136/archdischild-2016-312518 VL - 102 IS - 5 AU - Amanda Jane Friend AU - Thomas Engelhardt AU - Tom Hansen Y1 - 2017/10/01 UR - http://ep.bmj.com/content/102/5/276.abstract N2 - Design: Cohort study Patients: All children born in Sweden between 1973 and 1993 who had a single anaesthetic exposure before age 4 years (33514 children). Comparison: 159 619 matched children who had not been exposed to anaesthesia. Outcomes: Average (mean) grades in school at age 16 years and IQ test scores at age 18 years obtained at the time of military conscription. OutcomesMean (95% CI)Mean reduction in school grades at age 16 years compared with unexposed children0.41% (0.7% to 0.12%)Mean reduction in IQ scores at age 18 years compared with unexposed children0.97% (0.15% to 1.78%) OR (95% CI)Likelihood of having grades below the 10th centile at age 16 years compared with unexposed children1.02 (0.98 to 1.07)Likelihood of having no recorded school grades at age 16 years compared with unexposed children1.29 (1.17 to 1.42)Although general anaesthesia under the age of 4 years was associated with a statistically significant reduction in school grades at age 16 years and IQ scores at … ER -