Measure of perceived social support from family, friends, and healthcare providers for Korean adolescents and young adults with cancer.

Objective: Assessing the perceived social support (PSS) that adolescents and young adults (AYAs) with cancer receive from family, friends, and healthcare providers is critical to promoting their adjustment. This study developed a reliable and comprehensive self-report PSS assessment tool that measures various aspects of social support by translating existing measurements into Korean. Methods: The translation was completed in accordance with international guidelines. To focus on cultural adaptation, the main ideas associated with items were translated to reflect the differences between Western and Eastern culture. In total, 144 Korean AYAs with cancer (mean age: 17 years; 46% female) completed the translated version. A separate principal component analysis (PCA) with an orthogonal quartimax rotation, a minimum eigenvalue of 1.0, and minimum factor loadings of 0.50 was used for each subscale. Cronbach's alpha coefficients were calculated for each PCA-derived subscale. Results: Four subscales with 46 items were identified. Two subscales represented perceived emotional support within the family (PSS-ESF, 14 items) and the AYA's perceived helpfulness within the family (PSS-HWF, 3 items). The third scale represented the perceived support of friends (PSS-Friends, 14 items). The final scale represented the perceived support of healthcare providers (PSS-HCPs, 15 items). Excellent reliability per subscale was demonstrated (Cronbach's alpha: 0.93 for PSS-ESF, 0.73 for PSS-HWF, and 0.92 each for PSS-Friends and PSS-HCPs). Conclusions: A culturally adapted and reliable Korean version questionnaire with four independent subscales was developed. Further assessment of the Korean PSS is required and will contribute to the development of culturally adapted and tailored interventions.