Fig. 3.

Geometric mean PSA levels by calendar year for men aged 50–70 years in 2002 who were tested for PSA, according to diabetes status in 2002, adjusted to data for a 60-year-old man. Solid line, diabetic men diagnosed before 2002, dashed line, diabetic men diagnosed in 2002; dotted line, men not diagnosed with diabetes during 2002–2012. The number of observations in each year is shown below the graph. The curves of the diabetic groups are significantly different from the curve of the non-diabetic group at each time point (p < 0.001). Dx, diagnosis