TABLE 4.
Age-Adjusted Hospitalization and Emergency Department Visit Rates of Food-Related Anaphylaxis by Causative Allergen and Period, New York City, 2000–2014
| Hospitalizations | Emergency Department Visits | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 2000–2003 | 2004–2010 | 2011–2014 | 2005–2010 | 2011–2014 | ||||||
| No. | Ratea per 1 000 000 Person-Years (95% CI) | No. | Ratea per 1 000 000 Person-Years (95% CI) | No. | Ratea per 1 000 000 Person-Years (95% CI) | No. | Ratea per 1 000 000 Person-Years (95% CI) | No. | Ratea per 1 000 000 Person-Years (95% CI) | |
| Overall | 517 | 16.5 (15.3–17.7) | 1477 | 27.4 (26.2–28.6) | 1055 | 34.0 (32.2–35.8) | 1694 | 35.6 (34.0–37.2) | 2319 | 73.8 (71.3–76.3) |
| Allergen | ||||||||||
| Peanuts | 76 | 2.4 (1.9–2.9) | 302 | 5.7 (5.1–6.3) | 224 | 7.4 (6.5–8.3) | 305 | 6.6 (5.8–7.4) | 507 | 16.6 (15.3–17.9) |
| Crustaceans | 38 | 1.2 (1.0–1.4) | 95 | 1.7 (1.4–2.0) | 68 | 2.2 (1.8–2.6) | 81 | 1.7 (1.4–2.0) | 100 | 3.0 (2.5–3.5) |
| Fruits and vegetables | 44 | 1.4 (1.0–1.8) | 126 | 2.3 (2.0–2.6) | 82 | 2.5 (2.0–3.0) | 128 | 2.6 (2.2–3.0) | 139 | 4.3 (3.7–4.9) |
| Tree nuts and seeds | 38 | 1.2 (0.8–1.6) | 136 | 2.6 (2.2–3.0) | 122 | 4.0 (3.4–4.6) | 135 | 2.9 (2.4–3.4) | 292 | 9.2 (8.3–10.1) |
| Fish | 93 | 3.0 (2.5–3.5) | 201 | 3.7 (3.3–4.1) | 116 | 3.5 (2.9–4.1) | 305 | 6.1 (5.4–6.8) | 236 | 7.2 (6.4–8.0) |
| Food additives | b | b | 14 | 0.3 (0.2–0.4) | b | b | 11 | 0.2 (0.1–0.3) | 24 | 0.8 (0.6–1.0) |
| Milk products | 27 | 0.9 (0.6–1.2) | 63 | 1.2 (0.9–1.5) | 65 | 2.1 (1.3–2.9) | 70 | 1.5 (1.0–2.0) | 96 | 3.0 (2.1–3.9) |
| Eggs | 17 | 0.5 (0.1–0.9) | 35 | 0.6 (0.1–1.1) | 28 | 0.9 (0.1–1.7) | 31 | 0.7 (0.1–1.3) | 56 | 1.8 (1.0–2.6) |
| Other specific food | 138 | 4.4 (3.8–5.0) | 402 | 7.5 (6.9–8.1) | 286 | 9.3 (8.5–10.1) | 404 | 8.6 (7.9–9.3) | 478 | 15.1 (14.1–16.1) |
| Unspecified | 43 | 1.4 (1.0–1.8) | 103 | 2.0 (1.7–2.3) | 56 | 1.9 (1.6–2.2) | 224 | 4.8 (4.2–5.4) | 391 | 12.7 (11.7–13.7) |
Abbreviation: CI, confidence interval.
a
Rates were calculated using New York City Department of Health and Mental Hygiene population estimates, modified from US Census Bureau vintage 2017 population estimates, and 95% confidence intervals were estimated for a standard normal distribution.
b
Numerator cell size is less than 10 and point estimate has been suppressed because of inadequate sample size.