. 2018 Jul 5;44(7-8):182–188. doi: 10.14745/ccdr.v44i78a06

Table 1. Characteristics of cases of invasive group A streptococcus infection Middlesex-London, Ontario, from April 1, 2016, to February 28, 2018 (n=147 people)^a.

Characteristics	n (%)^b	Rate per 100,000
Sex
Male	91 (62)	21.4
Female	56 (38)	13.0
Age group in years
0–9	6 (4)	8.1
10–19	2 (1)	1.3
20–29	21 (14)	13.1
30–39	27 (18)	25.1
40–49	25 (17)	18.6
50–59	33 (23)	24.9
60–69	16 (11)	16.9
70–79	8 (5)	18.1
80–89	7 (5)	15.4
90–99	2 (1)	19.6
Risk factors
PWUD use^c	65 (44)	N/A
Injection drug use	58 (40)	N/A
Homelessness or under-housed	42 (29)	N/A
PWUD use and/or under-housed	71 (48)	N/A
Known HCV positive	60 (41)	N/A
Known HIV positive	15 (10)	N/A

Abbreviations: HCV, hepatitis C viral infection; HIV, human immunodeficiency virus; N/A, not applicable; n, number; PWUD, persons who use drugs

^a For individuals with two infections during the period (n=9), only the first episode was included

^b Does not add up to exactly 100% due to rounding to the nearest whole number

^c PWUD denotes cases who reported illicit drug use (e.g., opioids, cocaine, methamphetamines) in the previous six months; exclusive users of marijuana were excluded

Table 1. Characteristics of cases of invasive group A streptococcus infection Middlesex-London, Ontario, from April 1, 2016, to February 28, 2018 (n=147 people)a.

Table 1. Characteristics of cases of invasive group A streptococcus infection Middlesex-London, Ontario, from April 1, 2016, to February 28, 2018 (n=147 people)^a.