Investigation of the Prevalence of Type D Personality and Stigma in Patients With Cervical Myofascial Pain Syndrome

Cervical myofascial pain syndrome is a non-inflammatory pain disorder associated with painful trigger points in skeletal muscles of the neck and shoulder region. It is characterized by regional pain, restricted neck mobility, muscle tightness, fatigue, and autonomic symptoms such as increased sweating or dizziness. The condition is common among adults, particularly women, and often coexists with other chronic pain syndromes such as tension-type headache or fibromyalgia. Because there are no specific laboratory or imaging tests, diagnosis is based on detailed clinical examination and symptom evaluation. The persistence of pain can lead to emotional distress, sleep disturbance, and significant impairment in daily activities.

Personality and psychosocial factors are known to play important roles in chronic pain perception and coping. Type D personality, defined by the presence of both negative affectivity and social inhibition, has been shown to negatively influence health behaviors and quality of life in several chronic disorders. Individuals with this personality type tend to experience anxiety, irritability, and social withdrawal, which may exacerbate pain-related disability and emotional burden. Another relevant factor is stigma, which refers to social devaluation or exclusion based on illness. Patients with chronic pain may internalize stigma, leading to shame, reduced help-seeking behavior, and decreased treatment adherence. Despite its relevance, stigma has not been investigated in patients with cervical myofascial pain syndrome. This study seeks to fill that gap by assessing both Type D personality and anticipated stigma in this patient population.

Materials and Methods

This case-control study was conducted between July 2025 and October 2025 at the Departments of Neurology and Physical Medicine and Rehabilitation, Bozok University Faculty of Medicine, Yozgat, Turkey. Ethical approval was obtained from the Bozok University Clinical Research Ethics Committee (Approval No: 2025-GOKAEK-2513_2025.07.02_505). All participants provided written informed consent before inclusion.

Participants

The study included outpatients aged 18 to 65 years who were clinically diagnosed with cervical myofascial pain syndrome for at least six months. Diagnosis was made according to established clinical criteria, including localized pain at rest, referred pain from a palpable taut band, a hypersensitive tender spot within the affected muscle, and restricted range of motion. The control group consisted of healthy volunteers matched by age, sex, and education level. Exclusion criteria included systemic diseases, rheumatologic or neurologic disorders, psychiatric conditions such as schizophrenia or bipolar disorder, cervical disc herniation, radiculopathy, myelopathy, and use of psychotropic medication.

Data Collection and Instruments

Demographic and clinical data were recorded using a structured questionnaire that included information on age, sex, marital status, educational level, occupation, and disease duration. Participants completed a set of standardized, validated instruments administered face-to-face by trained healthcare professionals:

Headache Impact Test (HIT-6): Assesses the degree to which headaches affect daily activities, including pain intensity, social and cognitive functioning, and emotional well-being. Higher scores indicate greater impact.

Neck Disability Index (NDI): Measures the extent to which neck pain interferes with everyday activities such as reading, working, sleeping, and recreation.

Hospital Anxiety and Depression Scale (HADS): Evaluates symptoms of anxiety and depression over the previous week through two subscales.

Type D Personality Scale (TDPS): A 14-item instrument assessing negative affectivity and social inhibition. Scores equal to or higher than ten on both subscales indicate the presence of Type D personality traits.

Chronic Illness Anticipated Stigma Scale (CIASS): A 12-item scale assessing expected stigma from family and friends, the workplace, and healthcare providers. Each item is rated on a five-point Likert scale, with higher scores representing greater perceived stigma.

Short Form-36 Health Survey (SF-36): Evaluates health-related quality of life across eight domains, including physical functioning, vitality, social functioning, and mental health. Higher scores denote better perceived health status.