Table 3.

Number of ER visits in the previous 2 years for adults (18–64 years), First Nations, City of Hamilton and Ontario-10%

Frequency of ER visits	Sample
	OHC (total N=514*)	OHC RDS-adjusted	Hamilton (total N=360 378)	Ontario-10% (total N=901 509)
	Prevalence, %	Prevalence, % (95% CI)	Prevalence, %	Prevalence, %
None	35.2	31.5 (25.8 to 37.5)	66.3	69.1
1	23	26.2 (20.7 to 32.8)	18.7	16.8
2–5	32.5	31.7 (25.9 to 37.8)	13.4	12.3
6+	9.3	10.6 (6.2 to 14.5)	1.6	1.9
ER visits (acute)
None	51	50.2 (43.9 to 57.5)	78.4	80.1
1	24.3	24.7 (18.7 to 30.1)	14.2	13.1
2–5	21.6	20.7 (15.3 to 26.1)	6.8	6.3
6+	3.14	4 (1.6 to 6.9)	0.6	0.6
ER visits (non-acute)
None	56.8	54.3 (47.6 to 61.2)	79.4	81.2
1	20.8	22.4 (17.3 to 28.5)	14	12.2
2–5	19.8	20.4 (14.5 to 25.4)	6.3	6
6+	2.5	2.9 (1 to 5.6)	0.4	0.6

*Total N reflects the number of adults aged 28–64 linked to the ICES database.

ER, emergency room; ICES, Institute of Clinical Evaluative Sciences; OHC, Our Health Counts; RDS, respondent-driven sampling.