Fig. 2From: The sensitivity to change of the cluster headache quality of life scale assessed before and after deep brain stimulation of the ventral tegmental areaScatter plots representing significant Pearson correlations between changes in CH-QoL total score and changes in other measures of quality of life (SF-36), mood (BDI-II) and pain (McGill Pain Questionnaire evaluative scale, HIT-6) and Pain Behaviour Checklist help-seeking behaviours (PBC-HS) from before to after VTA-DBS. Note: CH-QoL total higher scores indicate poorer health related quality of life. SF-36 higher scores indicate better health related quality of life, BDI-II, HIT-6, McGill Pain Questionnaire (MPQ) lower scores indicate better functioning. BDI-II Beck depression inventory-II, HAL headache load, HIT-6 headache impact test-6, RP role physical, Tot CH-QoL total scoreBack to article page