Adverse events among Ontario home care clients associated with emergency room visit or hospitalization: a retrospective cohort study

Table 1 Incidence rates of adverse events identified in NACRS/ DAD/ MHRS for Ontario home care clients in 2008 and 2009

Adverse event	% (n^*)	Clients per 1,000 client-days
	2008 (N^** = 380,962)	2008
	2009 (N = 387,885)	2009
Injurious fall	4.93(18,784)	0.333
Injurious fall	5.05 (19,603)	0.339
Injury other than fall	4.14 (15,758)	0.279
Injury other than fall	4.30 (16,666)	0.288
Medication-related ED or hospitalization	2.96 (4,802)	0.200
Medication-related ED or hospitalization	3.13 (5,515)	0.210
Sepsis / Bacteraemia	1.26 (4,802)	0.085
Sepsis / Bacteraemia	1.42 (5,515)	0.095
Delirium	0.94 (3,577)	0.063
Delirium	1.05 (4,085)	0.071
Deep vein thrombosis	0.74 (2,811)	0.050
Deep vein thrombosis	0.84 (3,249)	0.056
Diabetic foot ulcer	0.40 (1,513)	0.027
Diabetic foot ulcer	0.39 (1,502)	0.026
Pressure ulcer (stage 2+)	0.12 (437)	0.019
Pressure ulcer (stage 2+)	0.12 (471)	0.020
Pulmonary embolus	0.28 (1,049)	0.008
Pulmonary embolus	0.29 (1,144)	0.008
Venus leg ulcer	0.05 (203)	0.004
Venus leg ulcer	0.06 (241)	0.004
Suicide ⁺	--	--
Suicide ⁺	0.13 (503)	0.009
Others ^‡	0.43 (1,654)	0.029
Others ^‡	0.45 (1,763)	0.030
Overall	12.72 (48,461)	0.858
Overall	13.31 (51,631)	0.892

^*n = Number of home care clients with adverse event, i.e., the numerator of the incidence rate.
^**N = Number of home care clients who are at risk of adverse event, i.e., the denominator of the incidence rate.
⁺Only 2009 rate is available because of very limited cases available for 2008.
^‡ Other adverse events include wound infection, medical device-associated infections, new pressure ulcer less than stage 2+, new stasis ulcer or worsening, and any new injury.

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