Fig. 2From: Preventing misdiagnosis of diabetes in the elderly: age-dependent HbA1c reference intervals derived from two population-based study cohortsSex-specific scatter plots of HbA1c against age as well as box plots of HbA1c by age groups in the SHIP-0 (a: men, b: women) and SHIP-Trend (c: men, d: women) population. The black triangle in the box plots indicates the mean value. The definition of healthy subjects (grey boxes) is given in Fig. 1Back to article page