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. 2021 Jun 18;2(6):380–387. doi: 10.1302/2633-1462.26.BJO-2021-0004.R1

Table II.

Patient demographic data and preoperative functional scores for patients undergoing total hip arthroplasty according to group. Two patients from the total hip arthroplasty group did not complete the question as to whether their recovery was limited and thus were excluded from analysis.

Demographic Limited by COVID-19 OR/difference (95% CI) p-value
Yes (n = 50) No (n = 53)
Sex, n OR 1.32 (0.29 to 1.39) 0.251*
Male 18 25
Female 32 28
Mean age, yrs (SD) 68.3 (9.5) 70.1 (10.8) Diff 1.8 (-2.2 to 5.8) 0.373
Mean BMI, kg/m2 (SD) 30.6 (5.2) 29.7 (6.7) Diff 0.9 (-1.5 to 3.3) 0.451
Comorbidity, n (% of group)
No disease Reference
Connect tissue 7 8 OR 1.09 (0.37 to 3.27) 0.875*
Diabetes 9 6 OR 0.58 (0.19 to 1.77) 0.337*
Back pain 23 16 OR 0.51 (0.23 to 1.14) 0.098*
Hypertension  13  14 OR 1.02 (0.42 to 2.46)  0.962*
Joint OR 0.95 (0.44 to 2.07) 0.896*
THA 22 24
TKA 28 29
Mean functional measures (SD)
OHS (n = 46)
Preoperative 18.6 (8.4) 20.0 (7.7) Diff 1.3 (-3.4 to 6.1) 0.568
Postoperative 33.8 (9.2) 39.3 (10.1) Diff 5.4 (-0.3 to 11.2) 0.064
OKS (n = 57)
Preoperative 18.8 (7.9) 21.2 (7.2) Diff 2.4 (-1.7 to 6.3) 0.244
Postoperative 30.8 (7.8) 40.3 (6.2) Diff 9.5 (5.8 to 13.3) < 0.001
EQ-5D (n = 103)
Preoperative 0.315 (0.316) 0.392 (0.315) Diff 0.077 (-0.046 to 0.201) 0.216
Postoperative 0.635 (0.226) 0.833 (0.214) Diff 0.198 (0.112 to 0.283) < 0.001
Satisfied OR 5.63 (1.15 to 27.52) 0.019
Yes 40 50
No 9 2
Not answered 1 1
*

Chi-squared test.

Independent-samples t-test.

Fisher's exact test

CI, confidence interval; EQ-5D, EuroQol five-dimension; N/A, not applicable; OHS, Oxford Hip Score; OKS, Oxford Knee Score; OR, odds ratio; SD, standard deviation; THA, total hip arthroplasty; TKA, total knee arthroplasty.