Incidence, distribution, seasonality, and demographic risk factors of Salmonella Enteritidis human infections in Ontario, Canada, 2007–2009

Table 1 Direct standardized incidence rates of Salmonella Enteritidis infections in Ontario, 2007–2009 (n = 1,932 cases)

Year ^a)		N ^b)	IR ^c)	95 % CI ^d)
2007 ^e)		12,792,937	4.4	4.0-4.7
2008 ^e)		13,070,584	5.2	4.8-5.6
2009 ^e)		13,064,900	5.2	4.9-5.6
2007 ^f)	Female	6,480,556	4.5	4.0-5.1
2007 ^f)	Male	6,312,381	4.2	3.7-4.7
2008 ^f)	Female	6,565,166	5.2	4.7-5.8
2008 ^f)	Male	6,505,418	5.2	4.7-5.8
2009 ^f)	Female	6,625,568	5.5	5.0-6.1
2009 ^f)	Male	6,439,332	5.0	4.5-5.6
2007-2009 ^g)	Female	19,671,290	5.1	4.8-5.4
2007-2009 ^g)	Male	19,257,131	4.8	4.5-5.1

^a) Year: A consecutive 12-month period from January 1^st to December 31^st.
^b) N: Reference population estimates obtained from the 2006 Census of Canada.
^c) IR: Direct standardized incidence rate per 100,000 person-years. Denominator included year-, age-, sex-, and public health unit-based population estimates.
^d) CI: Confidence interval of the adjusted IR.
^e) Annual age-and-sex-adjusted IR.
^f) Annual age-adjusted sex-specific IR.
^g) Mean age-adjusted sex-specific IR.

ISSN: 1471-2334