title: Incidence and Characteristics of Meniscal Injuries in Cadets at a Military School, 2013-2015.
abstract: BACKGROUND
  Meniscal injury is common among military service members.
  
  
  OBJECTIVE
  To examine the incidence and characteristics of meniscal injuries in cadets at a single military institution between 2013 and 2015.
  
  
  METHODS
  Cohort study.
  
  
  METHODS
  Meniscal-injury data were collected at the Center of Rehabilitation Training, the People's Liberation Army University of Science and Technology.
  
  
  METHODS
  A total of 2479 cadets participating in physical activities between 2013 and 2015.
  
  
  METHODS
  Injury rates, injury proportions by body mass index, risk ratios (RRs), and injury proportion ratios were reported with 95% confidence intervals (CIs).
  
  
  RESULTS
  The overall incidence rate was 10.08 (95% CI = 6.84, 14.84) per 1000 person-years. A multiple-comparisons test revealed differences in the relative injury rate in overweight or obese cadets versus normal-weight cadets and underweight cadets (χ2= 8.98, P = .01). No differences were found between injured normal-weight cadets and underweight cadets (P = .66, RR = 1.39, 95% CI = 0.32, 6.06) or between injured overweight or obese cadets and injured underweight cadets (P = .24, RR = 0.42, 95% CI = 0.09, 1.91). The absolute injury rate was higher for overweight and obese cadets compared with normal-weight cadets (P < .01, RR = 0.30, 95% CI = 0.13, 0.69). The overall proportional distribution for patterns of injury was 2:1 (medial to lateral) for meniscal injuries. Grade 2 injuries were the most common.
  
  
  CONCLUSIONS
  The high frequency and level of severity of meniscal injuries may negatively affect the readiness and health of cadets. High body mass index was a risk factor for meniscal injury.
authors.affiliation: The Lab of Military Conditioning and Motor Function Assessment, the People's Liberation Army University of Science and Technology, Nanjing, Jiangsu Province, China.|School of Life Sciences, Nanjing University, Jiangsu Province, China.
authors.forename: Ji Zheng
authors.initials: JZ
authors.lastname: Ma
authors.affiliation: School of Life Sciences, Nanjing University, Jiangsu Province, China.
authors.forename: Shu Fang
authors.initials: SF
authors.lastname: Cui
authors.affiliation: The Lab of Military Conditioning and Motor Function Assessment, the People's Liberation Army University of Science and Technology, Nanjing, Jiangsu Province, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Hu
authors.affiliation: The Lab of Military Conditioning and Motor Function Assessment, the People's Liberation Army University of Science and Technology, Nanjing, Jiangsu Province, China.
authors.forename: Qiu Ju
authors.initials: QJ
authors.lastname: Lu
authors.affiliation: The Lab of Military Conditioning and Motor Function Assessment, the People's Liberation Army University of Science and Technology, Nanjing, Jiangsu Province, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D008889:Military Personnel / Q000706:statistics & numerical data*; D012307:Risk Factors; D012574:Schools; D000070600:Tibial Meniscus Injuries / Q000175:diagnosis / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology; D055815:Young Adult
keywords: injury epidemiology; injury surveillance; physical activities