Cross-cultural adaptation and psychometric evaluation of the Thai version of Self-Care of Chronic Illness Inventory Version 4.c.

Participants were recruited by convenience sampling from primary care settings in Southern Thailand, so the results may not apply to hospitalized patients, people with dementia, or very recent diagnoses. The sample did not include equal numbers of patients for each chronic disease, which may bias how the instrument performs across conditions. Nurse research assistants collected the data, but agreement between observers was not tested. Some analyses excluded multivariate outliers, and the paper reports different enrolled and analysed counts without fully explaining the difference. The Self-Care Maintenance scale and convergent validity were weaker than the overall conclusion suggests, so subscale scores need careful interpretation.

Walailak University funded the study. The authors declared no potential conflicts of interest.

Do not conclude that this questionnaire improves patient self-care or health outcomes. It tested measurement properties, and the Self-Care Maintenance subscale had weak reliability, so scores from that subscale should not drive treatment decisions alone.