. 2021 Jun 9;47(5-6):269–275. doi: 10.14745/ccdr.v47i56a04

Table 3. Comparison of case fatality rates for respiratory outbreaks in institutional healthcare settings, by pathogen, Ontario, 2007/2008 to 2016/2017 (n=9,844)^a.

Pathogen^a	Hospital		LTC/RH		p-value
Pathogen^a	Case fatality rate (%)	Number of cases reported (n)	Case fatality rate (%)	Number of cases reported (n)	p-value
Coronaviruses	0.88	113	0.96	5,815	1.000
Entero/rhinovirus	0.82	612	1.62	20,069	0.117
Influenza	2.35	2,296	3.54	41,125	0.003^b
hMPV	3.43	175	3.25	4,649	0.895
Parainfluenza virus	2.78	431	2.12	6,047	0.357
RSV	2.65	415	2.39	7,628	0.732
Multiple pathogens	2.32	732	3.19	17,912	0.189
Unknown pathogens	3.39	501	1.76	16,040	0.007^b
Total	2.33	5,275	2.64	119,285	N/A

Abbreviations: hMPV, human metapneumovirus; LTC, long-term care; N/A, not applicable; RH, retirement home; RSV, respiratory syncytial virus

^a Outbreaks due to adenovirus excluded due to low counts (<5 outbreaks in either setting)

^b Significant at P<0.05

Table 3. Comparison of case fatality rates for respiratory outbreaks in institutional healthcare settings, by pathogen, Ontario, 2007/2008 to 2016/2017 (n=9,844)a.