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Table 2 Prevalence (95% confidence interval, CI) of type 2 diabetes (T2D), screen-detected type 2 diabetes (ST2D), total type 2 diabetes (TT2D), impaired glucose tolerance (IGT), impaired fasting glucose (IFG), abnormal glucose tolerance (AGT= TT2D, IGT, or IFG) in the study sample according to sex and age groups.

From: High prevalence of obesity, central obesity and abnormal glucose tolerance in the middle-aged Finnish population

  MEN WOMEN
  45–54 55–64 65–74 Total p* 45–54 55–64 65–74 Total p*
n 405 485 474 1364   479 511 471 1461  
T2D, % 2.7 8.2 12.2 7.1 < 0.001 2.3 3.5 8.3 3.9 < 0.001
(95% CI) (1.4–4.8) (6.0–11.1) (9.4–15.5) (5.7–8.5)   (1.2–4.1) (2.1–5.5) (6.0–11.1) (2.9–4.9)  
ST2D, % 5.9 8.7 12.7 9.3 0.002 2.5 8.0 12.1 7.3 < 0.001
(95% CI) (3.8–8.7) (6.3–11.5) (9.8–16.0) (7.7–11.0)   (1.3–4.3) (5.8–10.7) (9.3–15.4) (5.9–8.7)  
TT2D, % 8.6 16.9 24.9 16.4 < 0.001 4.8 11.5 20.4 11.2 < 0.001
(95% CI) (6.1–11.8) (13.7–20.5) (21.1–29.0) (14.3–18.5)   (3.1–7.1) (8.9–14.6) (16.8–24.3) (9.6–12.8)  
IGT, % 7.9 15.1 23.8 15.5 < 0.001 10.4 15.1 25.1 17.0 < 0.001
(95% CI) (5.5–11.0) (12.0–18.5) (20.1–27.9) (13.5–17.6)   (7.8–13.5) (12.1–18.5) (21.2–29.2) (15.0–19.1)  
IFG, % 9.9 12.4 5.9 10.0 0.002 5.2 5.1 4.2 5.2 0.746
(95% CI) (7.2–13.2) (9.6–15.6) (4.0–8.4) (8.2–11.8)   (3.4–7.6) (3.4–7.4) (2.6–6.5) (3.9–6.5)  
AGT, % 26.4 44.3 54.6 42.0 < 0.001 20.5 31.7 49.7 33.4 < 0.001
(95% CI) (22.2–31.0) (39.9–48.9) (50.0–59.2) (39.2–44.8)   (16.9–24.4) (27.7–35.9) (45.1–54.3) (30.9–36.0)  
  1. *p-values are for test of equivalence (likelihood-ratio test) between the three age-groups
  2. Total is an estimate of the population prevalence in the age group 45–74 years, taking into account the stratified sampling used in the study.
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