Aim
Between 67-88% of patients with chronic pain also complain of sleep disturbances [1].  We evaluated impact of interventional procedures offered by our service on pain and sleep.
Methods
Patients filled in a self-reported questionnaire before and 12 weeks after interventions. 
A total of 981 questionnaires were analysed with a response rate of 60%. 
Wilcoxon Signed Ranks test and Linear Regression was used for data analysis.
Results 
Pain significantly reduced (Z = -20.5, p < 0.0001) and quality of Sleep significantly increased (Z = -14.4, p <0.0001) after intervention. Graph2
Reduction in Pain could accurately predict increase in Sleep scores (F (1, 979) = 543.1, p <0.0001), 
R2of 0.352. 
Sleep improved by 0.544 points for each point improvement in pain. Graph3 
There was no significant difference in the effectiveness of the six treatments.
Limitations 
Sleep and pain scores were at a snapshot in time.  A validated questionnaire may provide superior data for analysis. 
Conclusions
Interventions offered by our service significantly reduce pain and improve sleep. 
References 
1. Finan, P. H.et al (2013) the association of sleep and pain: An update and a path forward. Journal of Pain, 14(12), 1539–1552

PAIN AND SLEEP: A SERVICE EVALUATION OF PAIN INTERVENTIONAL PROCEDURES