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Table 3 Exposure to sports and leisure-time activities

From: Individual and occupational risk factors for knee osteoarthritis: results of a case-control study in Germany

   Controls Cases Total
Gender Exposure n % n % n %
Female No sports 94 31.0 143 32.6 237 32.0
  Sports - cumulative exposure could be calculated 170 56.1 237 54.1 407 54.9
  Sports - no cumulative exposure could be calculated 39 12.9 58 13.2 97 13.1
Male No sports 41 15.3 39 13.0 80 14.1
  Sports - cumulative exposure could be calculated 201 75.0 241 80.1 442 77.7
  Sports - no cumulative exposure could be calculated 26 9.7 21 7.0 47 8.3
Female No leisure time activities 173 57.1 239 54.6 412 55.6
  Leisure time activities - cumulative exposure could be calculated 97 32.0 169 38.6 266 35.9
  Leisure time activities - no cumulative exposure could be calculated 33 10.9 30 6.8 63 8.5
Male No leisure time activities 154 57.5 154 51.2 308 54.1
  Leisure time activities - cumulative exposure could be calculated 90 33.6 130 43.2 220 38.7
  Leisure time activities - no cumulative exposure could be calculated 24 9.0 17 5.6 41 7.2