Table 1

Number of people and age-standardized prevalence* of diabetes, undiagnosed diabetes, and pre-diabetes in Know Your Heart and Tromsø 7, by sex

Know your Heart % (95% CI)†Tromsø 7 % (95% CI)†
Men (n)17328349
 Diabetes cases (n)‡219514
 Number of undiagnosed diabetes cases (n)§7694
 Number of pre-diabetes cases (n)¶6121875
 Diabetes mellitus prevalence‡11.6 (10.3 to 12.8)6.2 (5.6 to 6.7)
 Undiagnosed diabetes§4.04 (3.4 to 4.7)1.15 (0.9 to 1.4)
 Prevalence of pre-diabetes¶**35.3 (33.2 to 37.4)22.7 (21.8 to 23.6)
Women (n)23899300
 Diabetes cases (n)‡361395
 Number of undiagnosed diabetes cases (n)§9148
 Number of pre-diabetes cases (n)¶8242055
 Diabetes mellitus prevalence‡13.3 (12.3 to 14.2)4.3 (3.8 to 4.8)
 Undiagnosed diabetes§3.5 (3.1 to 3.9)0.5 (0.3 to 0.8)
 Prevalence of pre-diabetes¶**35.1 (33.4 to 36.9)22.6 (21.7 to 23.4)
  • *Age-standardized to the Standard European Population 2013; p<0.001 for all comparisons.

  • †All percentages are based on the total number of participants in Know Your Heart and Tromsø 7.

  • ‡Diabetes defined as HbA1c ≥6.5% (48 mmol/mol) and/or self-reported diabetes and/or use of medication with ATC code A10 (antidiabetics) according to the Anatomical Therapeutic Chemical (ATC) classification.

  • §Undiagnosed diabetes defined as HbA1c ≥6.5% (48 mmol/mol), no self-reported diabetes and no diabetes medication use.

  • ¶Pre-diabetes defined as HbA1c ≥5.7% (39 mmol/mol) and <6.5% (48 mmol/mol), no self-reported diabetes and no diabetes medication use.

  • **Missing data: Know Your Heart: HbA1c 124, diabetes medication 423; Tromsø 7: self-report of diabetes 413; HbA1c 212.

  • HbA1c, glycated hemoglobin.