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. 2023 Sep 26;8(5):e1098. doi: 10.1097/PR9.0000000000001098

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Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The International Association for the Study of Pain.

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal.

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Figure 2. — Heatmap of correlations of the somatosensory phenotype (PD-Q), depression (PHQ-9), and pain intensity (VAS) on patterns of sleep (MOS Sleep Scale) in patients with neuropathic pain symptoms. The correlation analysis resulted in statistically significant correlations of all single PD-Q symptoms, average/maximum pain ratings (VAS), and PHQ-9 score with all patterns of sleep (sleep disturbance, sleep adequacy, sleep somnolence, and sleep quantity) and PHQ-9 score for the entire patient cohort with neuropathic features (diabetic polyneuropathy, postherpetic neuralgia, complex regional pain syndrome). Only the depression score (PHQ-9) showed a correlation coefficient of >0.5. MOS, Medical Outcomes Study; PD-Q, painDETECT questionnaire; PHQ-9, Patient Health Questionnaire-9; VAS, visual analogue scale.