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Table 3 Outcome of the respective criterion in relation to the adverse event

From: Is detection of adverse events affected by record review methodology? an evaluation of the “Harvard Medical Practice Study” method and the “Global Trigger Tool”

Criteria n(%) of positive criteria n of criteria related to AE PPV AE
Hospital-incurred patient injury 132 (28.3) 83 62.9
Any other undesirable outcome not covered above 87 (18.7) 8 9.2
Unplanned re-admission after discharge from index admission within 30 days* 85 (18.2) 25 29.4
Healthcare-associated infection or sepsis 38 (8.2) 22 57.9
Adverse drug reaction 33 (7.1) 12 36.4
The index admission was an unplanned admission related to previous healthcare management within 30 days 26 (5.6) 13 50.0
Dissatisfaction with care documented in the patient’s medical record 16 (3.4) 2 12.5
Other patient complication 13 (2.8) 7 53.8
Unplanned return to the operating room 10 (2.1) 2 20.0
Unplanned removal, injury or repair of an organ during surgery 5 (1.1) 4 80.0
Unplanned transfer from general care to intensive care 5 (1.1) 4 80.0
Development of neurological deficit not present on admission 5 (1.1) 3 60.0
Inappropriate discharge to home 5 (1.1) 1 20.0
Documentation or correspondence indicating litigation 3 (0.6) 1 33.3
Cardiac or respiratory arrest 2 (0.4) 1 50.0
Unplanned transfer to another acute care hospital 1 (0.2) 0 0.0
Unexpected death 0 (0.0) 0 0.0
Injury related to abortion or delivery NA   
Total 466 (100) 188 40.3
  1. AE, adverse events; PPV, positive predictive value; NA, not applicable.
  2. All criteria except 1, 2 and 4 must occur during index orthopaedic admission to be included as positive criteria.
  3. * Including outpatient visits.