Figure 2.
Mean primary and secondary sleep and pain outcome scores at baseline, posttreatment, and 9-month assessments for the education-only control (EOC), cognitive–behavioral therapy for pain (CBT-P), and cognitive–behavioral therapy for pain and insomnia (CBT-PI) groups. Lower scores indicate improvement on Insomnia Severity Index and pain severity; higher scores indicated improvement on sleep efficiency and arthritis symptoms.
