Abstract:
Background: Chronic musculoskeletal pain has brought about a significant worldwide 
burden in terms of health issues such as limited functionality, mobility, quality of life, and 
activities of daily living. In Bhutan, persistent musculoskeletal pain is increasing and 
reported yearly in a huge number of cases. Still, the relationship between CMP and 
psychological outcomes like depression, anxiety, and stress is underexplored in Bhutan. 
This research study focuses on finding the initial associations between CMP, 
sociodemographic characteristics, and psychological elements.  
Method: This study employs a cross-sectional design. The study involves 213 participants, 
and three hospitals were selected for this study. The sampling method employed was a 
convenience sampling technique. The chronic pain intensity of CMP was measured by the 
Chronic Pain Graded Scale (CPGS), and psychological outcomes were assessed by the 
Depression, Anxiety, and Stress Scale (DASS-21). Descriptive statistics were reported 
using median and interquartile range. Inferential statistics were reported by non-parametric 
tests like Mann-Whitney U-tests, Kruskal-Wallis test, Spearman correlation, and quantile 
regression test.  
Result: The median age of the participants was 41 (IQR = 23). Among 213 participants 
with CMP, 47.5% reported depression, 40.8% reported anxiety, and 27% reported 
stress. Depression levels were significantly higher among females (U = 4613.5, p = 
.018) and unemployed participants (U = 4374.5, p = .029). No significant gender and 
employment differences were observed in anxiety (p = .085 and .933) and stress (p = 
.145 and .932). A moderate positive relationship was identified using Spearman’s 
correlation between pain-related disability and depression (ρ = .422, p = .000) and stress 
(ρ= .397, p = .000), while a weak but significant relationship was observed with anxiety 
(ρ = 0.211, p = 0.002). Pain severity also showed significant positive correlations with 
depression (ρ = .422, p = .000), weak correlation with anxiety (ρ = .176, p = .010), and 
stress (ρ = .280, p = .001). Age showed no significant correlation with depression (ρ = -.010, p = .886), but demonstrated a significant, weak negative correlation with anxiety 
(ρ = -.260, p = .000) and stress (ρ= -.189, p = .006). Significant predictors for 
Depression, anxiety, and stress include age, pain-related disability, and being female. 
Conclusion: Chronic musculoskeletal pains is significantly related to depression, 
anxiety, and stress among Bhutanese patients, particularly among women, unemployed 
individuals, and younger adults. Pain severity and pain-related disability were 
positively correlated with psychological outcomes. These outcomes emphasize the 
need for a holistic approach that includes mental health screening in physiotherapy 
services for CMP patients, particularly for women, young, and unemployed patients, 
promoting a culturally sensitive, biopsychosocial approach that aligns with the national 
commitment of holistic patient-centered care. 
Key words: chronic musculoskeletal pain, depression, anxiety, stress, psychological 
distress, Bhutan, biopsychosocial approach
 
Description:
A thesis is submitted to the SSARC Regional Interprofessional Master’s Program in Rehabilitation Science of Centre for the Rehabilitation of the Paralysed (CRP) in conformity with the requirements for the Degree of M.Sc. in Rehabilitation Science, Bangladesh Health Professions Institute, Faculty of Medicine, the University of Dhaka, Bangladesh.