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. Author manuscript; available in PMC: 2020 Jan 3.
Published in final edited form as: Pediatr Infect Dis J. 2016 May;35(5):488–493. doi: 10.1097/INF.0000000000001061

TABLE 1.

Incidence Rates for Pertussis Among Infants <6 Months of Age, Portland Metropolitan Area, 2010–2012*

2010 2011 2012
Hispanic Non-Hispanic Total Hispanic Non-Hispanic Total Hispanic Non-Hispanic Total
Case count 2 8 10 8 11 19 18 35 53
Estimated Age <6 mo 1952.5 8343.5 10,296 1874.5 8373.0 10,247.5 1780.5 8511 10,291.5
Incidence (per 100 K) 102 96 97 427 131 185 1011 411 515
*

Incidence rates calculated using half of the respective tricounty birth registry cohort to estimate number of infants <6 months of age by ethnicity: http://public.health.oregon.gov/BirthDeathCertificates/VitalStatistics/annualreports/11v1/Documents/2–08.pdf.