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Table 2 Sensitivity analyses for the incidence of type 1 diabetes mellitus in the United States by age category, 2001–2015

From: Fluctuations in the incidence of type 1 diabetes in the United States from 2001 to 2015: a longitudinal study

  Vanderloo algorithma Rapid onsetb
Age category, yearsc N, incident cases Incidence rated 95% Confidence intervals N, incident cases Incidence rated 95% Confidence intervals
< 5 1944 23.0 22.0–24.1 1873 22.2 21.2–23.2
5–9 2966 29.9 28.9–31.0 2895 29.2 28.2–30.3
10–14 4466 43.6 42.3–44.8 4499 43.9 42.6–45.2
15–19 3399 33.3 32.1–34.4 3511 34.4 33.2–35.5
20–24 1746 17.9 17.1–18.8 1608 16.5 15.7–17.3
25–29 1943 17.5 16.7–18.3 1673 15.0 14.3–15.8
30–34 2095 16.9 16.2–17.6 1693 13.7 13.0–14.3
35–39 2418 18.8 18.0–19.5 1788 13.9 13.2–14.5
40–44 2741 20.4 19.7–21.2 1843 13.7 13.1–14.4
45–49 3090 23.4 22.5–24.2 2005 15.2 14.5–15.8
50–54 3481 28.4 27.5–29.4 2063 16.9 16.1–17.6
55–59 3436 33.1 32.0–34.3 2012 19.4 18.6–20.3
60–64 3356 43.2 41.7–44.7 1864 24.0 22.9–25.1
Total 37,081 26.1 25.8–26.4 29,327 20.7 20.4–20.9
  1. aAll incident cases < 10 years of age; for those ≥ 10 years, insulin only within 730 days from
  2. diagnosis
  3. bFirst diagnosis of type 1 diabetes and the first insulin prescription filled were within 6 months
  4. cAge at first diagnosis
  5. dIncident cases of type 1 diabetes per 100,000 person-years of healthcare coverage