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. 2021 Apr 22;2(4):261–270. doi: 10.1302/2633-1462.24.BJO-2020-0201

Table II.

Demographic and patient information.

Variable All patients (n = 400) Hip arthroplasty (n = 236) Knee arthroplasty (n = 164)
Median age, yrs (IQR) 72.0 (64.0 to 77.0) 71.0 (60.8 to 78.0) 73.0 (66.0 to 77.0)
Female, n (%) 249 (62.3) 153 (64.8) 96 (58.5)
Previous hip arthroplasty, n (%) 72 (18.0) 55 (23.3) 17 (10.4)
Previous knee arthroplasty, n (%) 85 (21.3) 20 (8.5) 65 (39.6)
Either previous hip or knee arthroplasty, n (%) 145 (36.3) 69 (29.2) 76 (46.3)
Mean time on waiting list, days (SD) 272.3 (86.4) 272.5 (86.1) 272.0 (87.1)
COVID-19 risk status, n (%)
High 47 (12.1) 31 (13.5) 16 (9.9)
Medium 30 (7.7) 11 (4.8) 19 (11.8)
Low 6 (1.5) 3 (1.3) 3 (1.9)
Not known 307 (78.7) 184 (80.3) 123 (76.4)
Personal or family history of COVID-19, n (%) 24 (6.2) 17 (7.4) 7 (4.3)
Median PROMs (IQR)
EQ-VAS 50 (30.0 to 70.0) 45.0 (26.0 to 67.5) 60.0 (40.0 to 56.4)
EQ-5D-3L index 0.085 (-0.074 to 0.587) -0.016 (-0.074 to 0.516) 0.159 (-0.016 to 0.620)
Oxford Hip Score N/A 11.0 (8.0 to 20.0) N/A
Oxford Knee Score N/A N/A 15.0 (10.0 to 22.0)

EQ-5D-3L, EuroQoL five-dimension three-level questionnaire; EQ VAS, EuroQol visual analogue scale; IQR, interquartile range; N/A, not applicable; PROMs, patient-reported outcome measures; SD, standard deviation.