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Table 1 Characteristics of the population receiving a total joint arthroplasty (TJA) according to diagnosis

From: Identification of high-risk groups for complication after arthroplasty: predictive value of patient’s related risk factors

Characteristics Osteoarthritis (n = 552) Rheumatoid Arthritis (n = 46) P value
Age (years): mean (SE) 69 (0.4) 64.3 (1.8) 0.005
Sex (Female) 336 (58) 37 (79) 0.007
Diabetes 148 (27) 13 (28) 0.87
Hypertension 372 (69) 30 (65) 0.58
Osteoporosisa 104 (19) 13 (28) 0.12
Smoking 95 (18) 7 (15) 0.51
Alcohol 58 (11) 3 (7) 0.37
Corticosteroids use 22 (4) 17 (37) < 0.001
Obesity (BMI > 30)b 102 (56) 18 (64) 0.62
Respiratory comorbidity 43 (8) 9 (20) 0.009
Infectious comorbidity 47 (9) 11 (24) < 0.001
Anemia 11 (2) 7 (15) < 0.001
Osteomuscular comorbidity 122 (22) 18 (39) 0.001
Mental comorbidity 44 (8) 1 (2) 0.15
Cardiovascular comorbidity 110 (20) 12 (26) 0.32
Other comorbidity 97 (18) 21 (46) < 0.001
Gastrointestinal comorbidity 36 (7) 5 (11) 0.26
Cancer 25 (5) 0 (0) N.A.
Type of surgery (THA)c 314 (57) 27 (59) 0.81
Complications (n = 98) 78 (13) 21 (45) < 0.001
Complications by surgery (THA) 48 (62) 12 (57) 0.31
  1. Values are numbers and in parenthesis () standard deviations for continuous values or percentage for categorical variables (%). All variables were adjusted by age and gender. BMI body mass index
  2. aSubject diagnosed and/or receiving treatment for osteoporosis (from them, 87% had at least one previous fracture)
  3. bBMI calculated from measures at personal interview
  4. cTHA total hip arthroplasty compared with TKA total knee arthroplasty