Dyadic Pain Management Program for Older Adults and Informal Caregivers With Chronic Pain

Participants This study is a dyadic intervention. Target populations are older adults and informal caregivers with chronic pain. A pair of informal caregiver and older adult will be regarded as a dyad. Dyads will be recruited in the community following the snowball sampling, the eligibility will be accessed based on the following details: Older adults Inclusion criteria for older adults: 1. Aged 65 or above; 2. Have an informal caregiver willing to participate this program; 3. Can understand Chinese; 4. Have a history of non-cancer pain in past 6 months; 5. Pain score should be at least 2 measured by Numeric Rating Scale, a 11-point numeric scale ; 6. Have behavioral abilities to do a light exercise and stretch program; 7. Able to attend the whole sessions in community activity center. Exclusion criteria for older adults: 1. Have serious organic disease or malignant tumor; 2. Have a history of consciousness or mental disorder diagnosed by neurologists or psychiatrists; 3. Have a further medical/surgical treatment in two months or have joined in other pain management program. 4. Experience a drug addiction problem Informal caregivers Inclusion criteria for informal caregivers 1. Aged 18 or above; 2. As an informal caregiver for one older adult; 3. Can understand Chinese; 4. Have a history of non-cancer pain in past 6 months; 5. Pain score should be at least 2 measured by Numeric Rating Scale, a 11-point numeric scale ; 6. Own a smartphone and can assess the internet; 7. Able to attend the whole sessions in community activity center. Exclusion criteria for informal caregivers 1. Have serious organic disease or malignant tumor; 2. Have a history of consciousness or mental disorder diagnosed by neurologists or psychiatrists; 3. Have a further medical/surgical treatment in two months or have joined in other pain management program. 4. Experience a drug addiction problem Outcome measures It is a dyadic intervention so outcomes will be measured from older adults and informal caregivers. Primary outcome The Brief Pain Inventory-Chinese Version It is a tool to evaluate the intensity, site, quality, relief, interference and causes of pain in patients. Four items for the degree of pain severity, one item for the degree of pain relief and seven items for degree of pain interferes will assess, numbering the different pain sites from 0 to 10. For BPI-C, the Cronbach's α for the pain severity and pain interference items are 0.83-0.89 and 0.90-0.91 and has good acceptable test-retest reliability . Secondary outcomes: World Health Organization Quality of Life-Brief It is a self-report questionnaire which assesses 4 domains of quality of life, including physical health, psychological health, social relationships, and environment. Participants will express how much they have experienced in the preceding two weeks on a 5-point Likert scale ranging from 1 (not at all) to 5 (completely). Previous studies showed that WHOQOL-BRIF has good internal consistency and validity. Depression Anxiety Stress Scale It is a self-administered psychological instrument to evaluate the degree of depression, anxiety and stress involving 21 items. Every part has seven items on a 4-point Likert scale ranging from 0 to 3. The instrument was used in previous studies and had good internal consistency and validity. Pain Self-efficacy Questionnaire It is a tool to measure the self-efficacy in coping with daily activities with pain . A Chinese version of the PSEQ will be used in this study. Participants will express participants' confidence in performing ten activities experiencing pain on a 7-point Likert scale ranging from 0 (not at all confident) to 6 (completely cinfident). Previous studies illustrated the test-rest reliability coefficient of PSEQ was 0.75 and internal consistency, Cronbach's alpha was 0.95, which was reliable . Satisfaction and acceptability Participants' satisfaction and acceptability of the dyadic intervention will be assessed at the end of the grogram. Some open-ended questions will be asked, including "What topics, content, or concepts could have been covered in more/less detail?" "As a result of participating in dyadic pain management intervention, did you make some positive changes in your life?" "Would you feel the group discussions interesting and informative? Did the activities and exercises relieve your pain symptom?" These questions were used in previous studies to evaluate the satisfaction and acceptability of intervention program.