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Table 2 Audit results from the diagnostic and evaluation perspective (n = 4307)

From: Community Assessment of COPD Health Care (COACH) study: a clinical audit on primary care performance variability in COPD care

Variables Average (Patient level) Inter-center range Inter-regional range
Range P value a Range P value a
Final diagnosis correct
 Exposure + obstruction b 758 (17.6) 0–60.0 <  0.001 9.8–23.3 <  0.001
 Exposure + obstruction b + symptoms 369 (8.6) 0–41.3 <  0.001 0.7–14.0 <  0.001
Evaluation of the clinical presentation
 Dyspnea registered 820 (19.0) 0–94.9 <  0.001 2.7–31.8 <  0.001
 Dyspnea registered by mMRC 479 (11.1) 0–77.8 <  0.001 2.5–21.4 <  0.001
 Cough and sputum registered 1099 (25.5) 0–94.4 <  0.001 0.9–49.6 <  0.001
 Sputum color registered (n = 789 with chronic bronchitis) 358 (45.4) 0–77.9 <  0.001 19.2–77.0 <  0.001
 Asthma symptoms registered 856 (19.9) 0–86.7 <  0.001 0.2–35.3 <  0.001
 Exacerbations in the previous year registered 3507 (81.4) 2.6–100 <  0.001 62.0–95.6 <  0.001
Evaluation of therapies
 Current smoking status registered 1874 (43.5) 0–100 <  0.001 18.2–66.1 <  0.001
 Exercise registered 1950 (45.3) 0–100 <  0.001 13.9–74.5 <  0.001
 Influenza vaccination registered 3777 (87.7) 43.9–100 <  0.001 79.1–96.6 <  0.001
 Pneumococcal vaccination registered 2991 (69.4) 2.5–100 <  0.001 31.5–95.0 <  0.001
 Adverse effects registered 173 (4.0) 0–100 <  0.001 1.6–6.9 <  0.001
 Treatment adherence registered 610 (14.2) 0–94.9 <  0.001 5.3–27.4 <  0.001
 Inhaler satisfaction registered 195 (4.5) 0–47.6 <  0.001 0.8–6.9 <  0.001
Evaluation of complementary tests used
 Spirometry solicited 520 (12.1) 0–80.0 <  0.001 4.7–23.7 <  0.001
 COPD assessment test administered 46 (1.1) 0–18.8 <  0.001 0–2.6 <  0.011
 Sputum culture solicited 43 (1.0) 0–21.7 <  0.001 0–3.9 <  0.001
 Alpha1-antitrypsin solicited (n = 4199 with no previous determination) 5 (0.1) 0–7.7 <  0.001 0–0.2 0.896
 Alpha1-antitrypsin solicited at any time in the clinical record 114 (2.6) 0–23.8 <  0.001 0.4–7.4 <  0.001
  1. Data are expressed as absolute (relative) frequencies in comparison to the whole cohort unless otherwise specified
  2. mMRC modified Medical Research Council
  3. a Calculated by Chi-squared test or ANOVA to test for variability
  4. b Spirometric obstruction detected by post-bronchodilator spirometry and, if not available, by the most recent pre-bronchodilator spirometry