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Table 2 Demographic data

From: Variations in the pre-operative status of patients coming to primary hip replacement for osteoarthritis in European orthopaedic centres

  Patients in analysis (1327) Excluding missing values
Age groups:   
   < 35 6 (0.5%) 6 (0.5%)
   35–44 46 (3.5%) 46 (3.5%)
   45–54 154 (11.6%) 154 (11.9%)
   55–64 373 (28.1%) 373 (28.7%)
   65–74 456 (34.4%) 456 (35.1%)
   75–84 245 (18.5%) 245 (18.9%)
   85+ 18 (1.4%) 18 (1.4%)
   Missing 29 (2.2%)  
Age (mean, SD) 65.7, 10.9  
Sex:   
   Male 559 (42.1%) 559 (44.1%)
   Female 708 (53.4%) 708 (55.9%)
   Missing 60 (4.5%)  
BMI groups:   
   Underweight (< 18.5) 2 (0.2%) 2 (0.2%)
   Normal (18.5 to < 25) 359 (27.1%) 359 (29.3%)
   Overweight (25 to < 30) 568 (42.8%) 568 (46.4%)
   Obese (30 to < 40) 281 (21.2%) 281 (22.9%)
   Morbidly Obese (40+) 15 (1.1%) 15 (1.2%)
   Missing 102 (7.7%)  
BMI (mean, SD) 27.5, 4.4  
Employment status:   
   Employed 325 (24.5%) 325 (25.1%)
   Retired 740 (55.8%) 740 (57.2%)
   Unemployed 31 (2.3%) 31 (2.4%)
   Retired Early 105 (7.9%) 105 (8.1%)
   Voluntary work 5 (0.4%) 5 (0.4%)
   Housework 88 (6.6%) 88 (6.8%)
   Missing 33 (2.5%)  
Qualifications after leaving school:   
   Postgraduate degree 52 (3.9%) 52 (4.5%)
   University degree 149 (11.2%) 149 (12.9%)
   College diploma, or equivalent 371 (28.0%) 371 (32.2%)
   None 581 (43.8%) 581 (50.4%)
   Missing 174 (13.1%)  
ASA status:   
   1 209 (15.8%) 209 (17.8%)
   2 719 (54.2%) 719 (61.2%)
   3 237 (17.9%) 237 (20.2%)
   4 10 (0.8%) 10 (0.9%)
   Missing 152 (11.5%)  
Caring for someone else:   
   Yes 234 (17.6%) 234 (18.1%)
   No 1061 (80.0%) 1061 (81.9%)
   Missing 32 (2.4%)