Table 2 Incident reports classified in accordance with the first two levels of the International Taxonomy of Medical Errors in Primary Care, version 2004 (n = 188 reports)
Level 1188 Reports, first classification n (%)Level 2188 Reports, first classification n (%)All 342 errors found in the 188 reports n (%)
1. Process errors137 (72.9)1.1 Office administration13 (6.9)23 (6.7)
1.2 Equipment and physical buildings/surroundings/practice site3 (1.6)9 (2.6)
1.3 Investigations16 (8.5)29 (8.5)
1.4 Treatment errors84 (44.7)110 (32.2)
1.5 Communication13 (6.9)43 (12.6)
1.6 Payment8 (4.3)10 (2.9)
1.7 Workforce and organisation of care00
2. Knowledge and skills errors49 (26.1)2.1 In the execution of a clinical task49 (26.1)115 (33.9)
2.2 In the execution of an administrative task01 (0.3)
  • The first classification was for the most relevant type of error (n = 188, “first classification”). Each incident report was classified up to three times if the report described more than one error type. Thus, the last column displays the frequency of all classified errors.