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To assess the impact of rural-urban residence on children with obstructive sleep-disordered breathing (SD who were candidates for tonsillectomy with or without adenoidectomy (TA). Retrospective cohort study. Tertiary children's hospital. A cohort of otherwise healthy children aged 2 to 18 years with a diagnosis of obstructive SDB between April 2016 and December 2018 who were recommended TA were included. Rural-urban designation was defined by ZIP code approximation of rural-urban commuting area codes. The main outcome was association