Relationship between insomnia symptoms, perceived stress and coping strategies in subjects with arterial hypertension: psychological factors may play a modulating role

Sleep Med. 2016 Mar;19:108-15. doi: 10.1016/j.sleep.2015.09.026. Epub 2015 Nov 25.

Abstract

Objective: The aim of the study was to evaluate perceived stress and coping strategies in people with hypertension, according to the presence of insomnia symptoms and by using a set of variables that included anxiety and depressive symptoms evaluation.

Methods: A total of 371 hypertensive patients were enrolled during their first visit to the Hypertension Outpatient Unit. The Perceived Stress Scale (PSS), Brief-COPE, Insomnia Severity Index (ISI), Beck Depression Inventory (BDI), Self-rating Anxiety Scale (SAS), and State-Trait Anxiety Inventory (STAI) were administered. Patients with other sleep disorders or with incomplete data (n = 41) were excluded.

Results: Data from 330 hypertensive patients were analyzed (males 51%, mean age 57 ± 13 years). Those with insomnia symptoms (n = 70, 21%) were older (p = 0.02), more frequently females (p = 0.01), and presented with higher PSS (p < 0.001), BDI (p < 0.0001), SAS (p = 0.0003), and STAI (p < 0.0001) scores than those without insomnia symptoms. In a linear regression trait, anxiety (p < 0.0001) and depressive symptoms (p < 0.05) were independent predictors of high PSS. Patients with insomnia symptoms showed lower scores in coping strategies, such as positive reframing (p = 0.03) and emotional support (p = 0.04), and an increased score in behavioral disengagement (p = 0.03). Trait anxiety and insomnia severity were independent predictors of less effective coping strategies.

Conclusions: People with hypertension and insomnia symptoms showed higher perceived stress and less effective coping strategies than non-insomniacs; psychological factors such as trait anxiety and depressive symptoms may play a modulating role in these relationships. Prevention and treatment of insomnia symptoms and psychological factors should receive high attention for people with hypertension.

Keywords: Anxiety; Coping; Depression; Hypertension; Insomnia; Perceived stress.

MeSH terms

  • Adaptation, Psychological*
  • Anxiety / psychology
  • Brief Psychiatric Rating Scale / statistics & numerical data
  • Depression / psychology
  • Female
  • Humans
  • Hypertension / complications*
  • Male
  • Middle Aged
  • Sleep Initiation and Maintenance Disorders / complications
  • Sleep Initiation and Maintenance Disorders / psychology*
  • Stress, Psychological / etiology
  • Stress, Psychological / psychology*
  • Surveys and Questionnaires