Table II.
Overall and Age-, Sex-, and Race-specific Incidences of Abdominal Aortic Aneurysm Hospitalizations
| US Census Resident Population No. | Intact AAA Hospitalization | Ruptured AAA Hospitalization | |||||
|---|---|---|---|---|---|---|---|
| NIS Estimated No. | Estimated Incidence per 100,000 (95%CI) | NIS Estimated No. | Estimated Incidence per 100,000 (95%CI) | ||||
| Category-specific Incidence* | Overall Incidence† | Category-specific Incidence* | Overall Incidence† | ||||
| Overall | 1,728,374,183 | 262,532 | 15.2 (15.1–15.3) | 29,318 | 1.7 (1.7–1.7) | ||
| Age Category‡ | |||||||
| <65 Years | 1,394,481,765 | 42,521 | 3.1 (3.0–3.1) | 2.5 (2.4–2.5) | 5,392 | 0.4 (0.4–0.4) | 0.3 (0.3–0.3) |
| 65–74 Years | 191,666,633 | 103,311 | 53.9 (53.6–54.2) | 6.0 (5.9–6.0) | 9,156 | 4.8 (4.7–4.9) | 0.5 (0.5–0.5) |
| ≥75 Years | 142,225,785 | 106,208 | 74.7 (74.2–75.1) | 6.1 (6.1–6.2) | 13,702 | 9.6 (9.5–9.8) | 0.8 (0.8–0.8) |
| Sex Category | |||||||
| Female | 887,125,727 | 57,724 | 6.5 (6.5–6.6) | 3.3 (3.3–3.4) | 8,035 | 0.9 (0.9–0.9) | 0.5 (0.5–0.5) |
| Male | 841,248,456 | 204,572 | 24.3 (24.2–24.4) | 11.8 (11.8–11.9) | 21,271 | 2.5 (2.5–2.6) | 1.2 (1.2–1.3) |
| Race Category|| | |||||||
| White | 1,355,650,200 | 215,165 | 15.9 (15.8–15.9) | 12.4 (12.4–12.5) | 23,322 | 1.7 (1.7–1.7) | 1.4 (1.3–1.4) |
| Black | 219,990,860 | 14,590 | 6.6 (6.5–6.7) | 0.8 (0.8–0.9) | 1,624 | 0.7 (0.7–0.8) | 0.1 (0.1–0.1) |
| Asian | 97,994,723 | 4,208 | 4.3 (4.2–4.4) | 0.2 (0.2–0.3) | 550 | 0.6 (0.5–0.6) | 0.03 (0.03–0.04) |
Incidence numerator is the National Inpatient Sample estimated number of hospitalizations and denominator is the category-specific United States resident population.
Incidence numerator is the National Inpatient Sample estimated number of hospitalizations and denominator is the overall United States resident population (Estimated N=1,728,374,183). Summation of incidences within each category equals the overall incidence.
Age categorized in accordance with before (<65), during (65–75), and after (>75) the age of screening in accordance with US Preventive Services Task Force recommendations5
The overall incidence within this category will not sum to the incidence for the full US Census resident population as not all races in the US are represented in the table.
AAA indicates abdominal aortic aneurysm; US, United States; NIS, National Inpatient Sample; CI, Confidence Interval, No., Number.