Fig. 1.

The distribution of scores (in percentage of the whole sample) on HSCL (average of 5 depression items, with a cut-off at an average score of > 1.85) in Tromsø6 and 7 (left panel) and HADS-D (sum of 7 depression items, with a cut-off score sum score of 7 or more) in HUNT3 and 4 (right panel). Both panels also show the share of responders that are found in the CPHR (primary care database) with an ICPC-2 diagnosis P73 or P76 or an ICD-10 diagnosis F32, F33 or F34 within 1 year after the survey. Black lines represent the earliest surveys, red lines the latest surveys. The included age span in Tromsø is 40–79 years, and in HUNT 20–79 years