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.