Table 1—

Incidence of type 1 diabetes, number of patients, and completeness of case ascertainment according to age at diagnosis and sex in the Antwerp district between 1 January 1989 and 31 December 2000legend

CharacteristicsAge at diagnosis (years)
0–1415–390–39
Standardized incidence rate     (per 100,000/year)
    Male11.1 (9.1–13.3)10.6 (9.2–12.2)10.8 (9.6–12.0)
    Female12.5 (10.3–14.9)7.0 (5.9–8.3)*9.1 (8.0–10.3)
    All11.8 (10.3–13.4)8.8 (7.9–9.8)9.9 (9.1–10.8)
Number of patients
    Male110212322
    Female119130249
    Male-to-female ratio0.921.63§1.29
% Ascertainment
    Male96 (92–100)92 (88–95)94 (91–96)
    Female95 (91–99)88 (82–93)92 (89–96)
    All96 (93–98)90 (86–93)93 (91–95)
  • legend

    legend Data are n or n (95% CI). Ascertainment determined by capture-recapture method.

  • *

    * P < 0.001 vs. male sex (ages 15–39 years) and vs. female sex (ages 0–14 years);

  • P = 0.001 vs. age 0–14 years;

  • P < 0.001 vs. age 0–14 years;

  • §

    § P < 0.001 vs. ratio in age-matched background population (1.04 [180,684/174,442]);

  • P = 0.010 vs. ratio in age-matched background population (1.04 [271,449/261,413]).