Volume 10, Number 5—May 2004
Dispatch
Mass Smallpox Vaccination and Cardiac Deaths, New York City, 1947
Lorna E. Thorpe*†
, Farzad Mostashari*, Adam M. Karpati*1, Steven P. Schwartz*, Susan E. Manning*†, Melissa A. Marx*†, and Thomas R. Frieden*
, Farzad Mostashari*, Adam M. Karpati*1, Steven P. Schwartz*, Susan E. Manning*†, Melissa A. Marx*†, and Thomas R. Frieden*
Table 2
Rate ratio (RR) and 95% confidence interval (CI) of cardiac death rates comparing postvaccination to reference periods,a New York City, March–June, 1946–1948
| Outcome | Postvaccination period | RR (95% CI) |
|---|---|---|
| All cardiac deaths (ICD-5 090–095) |
April 22–May 5 |
1.01 (0.96 to 1.07) |
| 50- to 64-year-olds only |
1.05 (0.95 to 1.15) |
|
| Atherosclerotic cardiac deaths (ICD-5 094) |
April 22–May 5 |
1.06 (0.97 to 1.16) |
| 50- to 64–year-olds only |
1.00 (0.86 to 1.15) |
|
| Myopericarditis deaths (ICD-5 090, 093) |
April 22–May 5 |
1.00 (0.94 to 1.07) |
| All deaths |
April 22–May 5 |
1.00 (0.97 to 1.04) |
| All cardiac deaths (ICD-5 090–095) | April 16–May 13 | 0.99 (0.95 to 1.04) |
aAll models are adjusted for long-term temporal and seasonal trends.
1At the time of this study, Dr. Karpati was jointly affiliated with the New York City Department of Health and Mental Hygiene and the Centers for Disease Control and Prevention.
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