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. 2005 Aug;20(8):686–691. doi: 10.1111/j.1525-1497.2005.0152.x

Table 2.

Classification of Medical Errors Identified by Physician Implicit Review

# Cases with This Condition Chart had One or More Aspects of Care Rated as Borderline/Poor Frequency(%) Frequency of Quality Problems Frequency (Errors per Case) Underuse (Errors of Omission) Frequency (% of Classifiable Errors) Overuse/Misuse (Errors of Commission) Frequency (% of Classifiable Errors) Unclear Whether Error was Underuse or Overuse Frequency
Hypertension 500 246 (49%) 464 (0.9) 429 (94.5) 25 (5.5) 10
COPD 167 90 (54%) 227 (1.4) 216 (96.4) 8 (3.6) 3
Diabetes 258 149 (58%) 427 (1.7) 411 (97.9) 9 (2.1) 7
Other chronic diseases 614 294 (48%) 758 (1.2) 712 (95.2) 36 (4.8) 10
Acute conditions 409 142 (35%) 259 (0.6) 221 (86.0) 36 (14.0) 2
Prevention 621 357 (57%) 782 (1.3) 767 (98.6) 11 (1.4) 4
Overall [95% CI] 621 512 (82%) [79%, 86%] 2,917 (4.7) [4.4, 5.0] 2,756 (95.7) [94.9, 96.4] 125 (4.3) [3.6, 5.1] 36

CI, confidence interval.