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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%)

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