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. 2022 Mar 12;17:22. doi: 10.1186/s13012-022-01193-9

Table 2.

Baseline characteristics of the Trusts as randomised (n = 41) and as included in the analysis (n = 27)

As randomiseda As analyseda
Anaemia (n = 19) Infection (n = 22) Anaemia (n = 11) Infection (n = 16) Overall (n = 27)
Number of THR and TKR undertaken in 2016/2017
 Mean (SD) 814.7 (523.6) 916.4 (636.8) 924.0 (622.0) 980.4 (720.1) 957.4 (669.9)
 Median (min, max) 669 (353, 2442) 661.5 (354, 2876) 707 (416, 2442) 661.5 (392, 2876) 671 (392, 2876)
Dichotomised,n(%)
 ≤660 9 (47.4) 11 (50.0) 4 (36.4) 8 (50.0) 12 (44.4)
 >660 10 (52.6) 11 (50.0) 7 (63.6) 8 (50.0) 15 (55.6)
Learning from mistakes categoryb,n(%)
 Outstanding 1 (5.3) 2 (9.1) 0 (0.0) 1 (6.3) 1 (3.7)
 Good 8 (42.1) 9 (40.9) 5 (45.5) 7 (43.8) 12 (44.4)
 Significant concern 7 (36.8) 7 (31.8) 4 (36.4) 6 (37.5) 10 (37.0)
 Poor 3 (15.8) 4 (18.2) 2 (18.2) 2 (12.5) 4 (14.8)

aDifferences between as randomised and as analysed are due to some Trusts not confirming capacity and capability

bOutstanding levels of openness and transparency, good levels of openness and transparency, significant concerns about openness and transparency, and poor reporting culture