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Do overweight and obese youth take longer to recover from injury?

The objective of the study was to examine the effects of overweight and obesity on times to recovery among Canadian youth who have suffered one or more types of injury. The data source was the 2002 Canadian Health Behaviour in School-Aged Children (HBSC) survey. The study population included 7266 youth in grades 6 through 10 sampled from all Canadian provinces and territories. Of these, 2831 students reported an injury event and were included in the analysis. Kaplan–Meier curves and hazard ratios (HR) were used to profile survival functions and estimate relative hazards for non-recovery from injury events among normal weight, overweight and obese youth. Youth who were obese and suffered a combined injury (broken bone and strain/sprain) took longer to recover (HR: 1.81, 95% CI 0.99–3.32) compared to normal weight youth. HR for injury recovery in obese youth were not significantly elevated for broken bones (1.15, 95% CI 0.61–2.19) and sprain/strains (1.17, 95% CI 0.73–1.85) in isolation. Obesity was associated with times for injury recovery among injured youth. If these findings are confirmed in other settings, clinicians providing an injury recovery prognosis may need to take into account BMI status and allow for extra recovery time for patients in this age range.