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Table 2 Hypothesized indicator association and direction of association

From: Testing the construct validity of hospital care quality indicators: a case study on hip replacement

  Hypothesized indicator associations Evidence for expected indicator association Expected correlation association p-value indicator
Association strength
2008 2009
haa 1 having a thrombosis prophylaxis management guideline (qi2ab) and the percentage of patients who accurately receive a thrombosis prophylaxis (qi2b) [29] positive / /
ha 2 having a blood management guideline (qi4a) and the percentage of patients who do not receive a blood transfusion (qi4b) [29, 30] positive / /
ha 3 having a guideline for antibiotic prophylaxis (qi5a) and the percentage of patients who receive antibiotic prophylaxis perioperative (qi5b) [25] [29] positive / /
ha 4 having a guideline for antibiotic prophylaxis (qi5a) and the percentage of patients who receive antibiotic prophylaxis 60–15 min before incision (qi5c) [25] [29] positive / /
ha 5 the percentage of patients who receive their perioperative antibiotic prophylaxis in a timely manner (qi5b) and the percentage of patients with deep wound infection (qi5d) [2628] [3032] negative / 0.74
ha 6 the percentage of patients that receive antibiotic prophylaxis 60–15 min before incision (qi5c) and the percentage of patients with deep wound infection (qi5d) [2628] [3032] negative 0.14 0.74
ha 7 the percentage of patients who receive no blood transfusion (qi4b) and the percentage of patients with deep wound infection (qi5d) [29, 30] [33, 34] negative 0.05 0.07
ha 8 having a timely postoperative appointment (q3b) and the percentage of deep wound infections (qi5d)   negative / 0.001
ha 9 having a complication register (qi3a) and providing a thrombosis prophylaxis (qi2b)   positive 0.73 0.19
ha 10 having a complication register (qi3a) and the percentage of patients receiving no blood transfusion (qi4b)   positive 0.09 0.57
ha 11 having a complication register (qi3a) and the percentage of patients receiving perioperative antibiotic prophylaxis (qi5b)   positive / 0.60
ha 12 having a complication register (qi3a) and the percentage of patients receiving antibiotic prophylaxis 60–15 min before incision (qi5c)   positive 0.29 0.57
ha 13 having a complication register (qi3a) and the percentage of patients with deep wound infection (qi5d)   negative 0.74 0.43
ha 14 having an orthopaedic registration form (qi3c) and the percentage of patients receiving thrombosis prophylaxis (qi2b) [35] positive 0.80 0.89
ha 15 having an orthopaedic registration form (qi3c) and the percentage of patients receiving no blood transfusion (qi4b) [35] positive 0.98 0.26
ha 16 having an orthopaedic registration form (qi3c) and the percentage of patients receiving perioperative antibiotic prophylaxis (qi5b) [35] positive / 0.06
ha 17 having an orthopaedic registration form (qi3c) and the percentage of patients receiving antibiotic prophylaxis 60–15 min before incision (qi5c) [31] [35] positive / 0.28
ha 18 having an orthopaedic registration form (qi3c) and the percentage of patients with deep wound infections (qi5d) [31] [35] positive 0.60 0.42
ha 19 having complication meetings (qi3d) and the percentage of patients receiving thrombosis prophylaxis (qi2b)   positive 0.50 0.04
ha 20 having complication meetings (qi3d) and the percentage of patients receiving no blood transfusion (qi4b)   positive 0.26 0.91
ha 21 having complication meetings (qi3d) and the percentage of patients receiving perioperative antibiotic prophylaxis (qi5b)   positive / 0.16
ha 22 having complication meetings (qi3d) and the percentage of patients receiving antibiotic prophylaxis 60–15 min before incision (qi5c)   positive 0.26 0.32
ha 23 having complication meetings (qi3d) and the percentage of patients with deep wound infections (qi5d)   negative 0.39 0.91
ha 24 having an improvement plan to avoid complications (qi3e) and the percentage of patients receiving thrombosis prophylaxis (qi2b)   positive 0.86 0.52
ha 25 having an improvement plan to avoid complications (qi3e) and the percentage of patients receiving no blood transfusion (qi4b)   positive 0.09 0.17
ha 26 having an improvement plan to avoid complications (qi3e) and the percentage of patients receiving perioperative antibiotic prophylaxis (qi5b)   positive / 0.39
ha 27 having an improvement plan to avoid complications (qi3e) and the percentage of patients receiving antibiotic prophylaxis 60–15 min before incision (qi5c)   positive 0.51 0.05
ha 28 having an improvement plan to avoid complications (qi3e) and the percentage of patients with deep wound infections (qi5d)   negative 0.26 0.72
  1. a hypothesized association (ha), bquality indicator (qi)