• Tomonori Adachi, Momoka Sunohara, Kiyoka Enomoto, Keitaro Sasaki, Gaku Sakaue, Yoshitsugu Fujita, Yasuyuki Mizuno, Yoshiaki Okamoto, Kenji Miki, Masao Yukioka, Kazuhito Nitta, Narihito Iwashita, Hirotoshi Kitagawa, Masahiko Shibata, Jun Sasaki, Mark P Jensen, and Sei Fukui.
• Pain Management Clinic, Shiga University of Medical Science Hospital, Otsu, Shiga, Japan.
• Pain Rep. 2019 Mar 1; 4 (2): e711.

IntroductionAlthough evidence supports efficacy of treatments that enhance self-management of chronic pain, the efficacy of these treatments has been hypothesized to be influenced by patient readiness for self-management. The Pain Stage of Change Questionnaire (PSOCQ) is a reliable and valid measure of patient readiness to self-manage pain. However, there is not yet a Japanese version of the PSOCQ (PSOCQ-J), which limits our ability to evaluate the role of readiness for pain self-management in function and treatment response in Japanese patients with chronic pain.ObjectiveHere, we sought to develop the PSOCQ-J and evaluate its psychometric properties.MethodsWe recruited 201 patients with chronic pain. The study participants were asked to complete the PSOCQ-J and other measures assessing pain severity, pain interference, catastrophizing, self-efficacy, and pain coping strategies.ResultsThe results supported a 4-factor structure of the PSOCQ-J. We also found good to excellent internal consistencies and good test-retest reliabilities for the 4 scales. The Precontemplation scale had weak to moderate positive correlations with measures of pain-related dysfunction and maladaptive coping. The Action and Maintenance scales had weak to moderate positive correlations with measures of self-efficacy and adaptive coping. The Contemplation scale had weak positive correlations with measures of pain interference and both adaptive and maladaptive coping.ConclusionsThe PSOCQ-J demonstrated adequate psychometric properties in a sample of Japanese patients with chronic pain. This measure can be used to evaluate the role that readiness to self-manage pain may play in adjustment to chronic pain in Japanese pain populations.

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