Table 3: Age- and sex-standardized mortality and admission to hospital rates for unintentional nonfire-related carbon monoxide poisoning in Canada, by site of carbon monoxide exposure

Exposure site	Mortality					Admission to hospital
	Rate*		Total study period, 1981–2009			Rate*		Total study period, 1995–2010
	1981	2009	No. of events	Average annual rate*	AAPC (95% CI)	1995	2010	No. of events	Average annual rate*	AAPC (95% CI)
Home/residential	1.94	0.66	930	1.17	–5.09 (–6.46 to –3.68)	2.65	1.59	942	1.82	–2.51 (–5.32 to 0.34)
Occupational	0.27	0.08	117	0.15	–6.48 (–10.37 to –2.39)	1.22	0.17	264	0.52	–6.41 (–10.73 to –1.92)
Recreation/sports facility	0.03	0.00	23	0.03	–13.07 (–19.38 to –6.29)	0.10	0.03	19	0.04	–23.05 (–35.51 to –8.23)
Public area	0.50	0.06	105	0.13	–10.10 (–17.01 to –2.60)	0.17	0.08	54	0.11	–12.97 (–23.88 to –0.48)
Other/unknown	0.36	0.14	633	0.21	–3.80 (–8.48 to 1.23)	1.33	0.66	705	0.82	–2.52 (–6.01 to 1.10)

Note: AAPC = average annual percent change, CI = confidence interval. Results that are statistically significantly different from zero are shown in boldface. *Rates are reported per million population.