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

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

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

AE, adverse events; PPV, positive predictive value; NA, not applicable.
All criteria except 1, 2 and 4 must occur during index orthopaedic admission to be included as positive criteria.
* Including outpatient visits.

ISSN: 1754-9493