The association between somatization and disability in primary care patients

Area of Science:

• Psychiatry
• General Practice
• Epidemiology

Background:

• Medically unexplained physical symptoms are frequent in primary care.
• Somatization may predict future disability, potentially influenced by psychiatric conditions.
• Understanding the somatization-disability link is crucial for patient care.

Purpose of the Study:

• To investigate the cross-sectional and longitudinal relationship between somatization and disability.
• To determine if anxiety or depressive disorders modify this association in primary care patients.

Main Methods:

• 1545 primary care patients from the Netherlands Study of Depression and Anxiety (NESDA) were analyzed.
• Somatization was measured using the 4-Dimensional Symptom Questionnaire (4DSQ).
• Disability was assessed with the WHO Disability Assessment Schedule 2.0 (WHO-DAS II) cross-sectionally and longitudinally.

Main Results:

• Somatization showed significant cross-sectional and longitudinal associations with disability.
• Somatization explained substantial variance in disability (41.8% cross-sectionally, 31.7% longitudinally).
• The unique contribution of somatization to disability decreased when anxiety/depressive disorders were included.

Conclusions:

• Somatization is an independent contributor to disability in primary care.
• These findings highlight the importance of addressing somatization in managing patient disability.
• The study underscores the complex interplay between physical symptoms, mental health, and functional impairment.