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Table 3 Characteristics of total hip arthroplasty recipients: Post-matching

From: The effectiveness of inpatient rehabilitation after uncomplicated total hip arthroplasty: a propensity score matched cohort

  Inpatient Rehabilitation Group, n = 123 No Inpatient Rehabilitation Group, n = 123 Standardized Mean Difference P-value
Age, mean (SD), y 67.8 (10.0) 66.9 (10.6) 0.09 0.48
Male, % (n) 64.2 68.3 0.09 0.50
BMI, mean (SD) 27.8 (4.8) 28.0 (5.1) 0.04 0.76
Education, % (n)
 1 1.6 (2) 1.6 (2) 0 1.0
 2 20.3 (25) 22.80 (28) 0.06 0.64
 3 55.3 (68) 51.2 (63) 0.08 0.52
 4 22.8 (28) 24.4 (30) 0.04 0.76
ASA, % (n)
 1 10.6 (13) 7.3 (9) 0.11 0.37
 2 59.4 (73) 61.0 (75) 0.03 0.79
 3 28.5 (35) 28.5 (35) 0.0 1.0
 4 1.6 (2) 3.3 (4) 0.11 0.70
Comorbidity, % (n)
 Nil 8.9 (11) 8.9 (11) 0 1.0
 Yes, but no daily medication 4.9 (6) 3.3 (4) 0.08 0.52
 Yes, with daily medication 86.2 (106) 87.8 (108) 0.05 0.71
 Oxford Hip Score, mean (SD) 23.1 (8.9) 21.9 (8.2) 0.14 0.27
 EuroQol VAS, mean (SD) 71.7 (19.4) 70.8 (16.8) 0.05 0.69
 Other lower limb or back problems limiting mobility, % (n) 47.2 (58) 48.8 (60) 0.03 0.80
 Anterior surgical approach 33.8 (42) 31.0 (38) 0.06 0.56
 Paid employment, No. (%) 34.2 (42) 31.7 (39) 0.05 0.68
  1. Abbreviations: BMI body mass index, ASA American Society of Anesthesiology; Education 1 = nil formal; 2 = Year 10 or less; 3 = Year 11 or 12; 4 = Degree or greater; Comorbidity included any conditions of the cardiovascular, renal, respiratory, endocrine, liver, central and peripheral nervous systems, and excluding other musculoskeletal conditions Note: Standardized mean difference was calculated using the following equation - Standardized Mean Difference34 = (Mean1 – Mean 2)/√((SD1)2 + (SD2)2)/2