Volume 25, Number 10—October 2019
CME ACTIVITY - Research
Risk for Invasive Streptococcal Infections among Adults Experiencing Homelessness, Anchorage, Alaska, USA, 2002–2015
Emily Mosites
, Tammy Zulz, Dana Bruden, Leisha Nolen, Anna Frick, Louisa Castrodale, Joseph McLaughlin, Chris Van Beneden, Thomas W. Hennessy, and Michael G. Bruce
, Tammy Zulz, Dana Bruden, Leisha Nolen, Anna Frick, Louisa Castrodale, Joseph McLaughlin, Chris Van Beneden, Thomas W. Hennessy, and Michael G. Bruce
Table 2
Crude and age-adjusted incidence rates of invasive streptococcal infections among the adult population experiencing homelessness compared with the general adult population, Anchorage, Alaska, USA, 2002–2015*
| Disease | Population experiencing homelessness |
General population |
Crude IRR (95% CI) | Age-adjusted IRR (95% CI) | |||||
|---|---|---|---|---|---|---|---|---|---|
| No. cases | Person-years | Incidence | No. cases | Person-years | Incidence | ||||
| Group A Streptococcus | 56 | 13,585 | 412.2 | 229 | 2,983,169 | 7.7 | 53.7 (39.3–72.2) | 53.3 (46.7–61.0) | |
| Group B Streptococcus | 6 | 13,585 | 44.2 | 194 | 2,983,169 | 6.5 | 6.8 (2.5–15.0) | 6.9 (6.0–8.1) | |
| Streptococcus pneumoniae | 84 | 13,585 | 618.3 | 457 | 2,983,169 | 15.3 | 40.3 (31.5–51.0) | 36.3 (33.0–39.9) | |
*General population excludes persons experiencing homelessness. Incidence expressed as no. cases/100,000 person-years. IRR, incidence rate ratio.
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