CancerSupportSource-Spanish: Development of a Distress Screening Measure for Spanish-Speaking Hispanic and Latino Individuals with Cancer.

Introduction: CancerSupportSource (CSS), a distress screening and referral program, identifies unmet needs of people with cancer and links them to resources and support. We developed and validated a Spanish-language version (CSS-Spanish) to better serve Hispanic and Latino communities and promote health equity. Methods: The 25-item CSS-Spanish was created leveraging rigorous translation methods and cognitive interviews to ensure cultural relevance and topical breadth. A total of 210 Spanish-speaking Hispanic and Latino individuals completed CSS-Spanish and comparison measures. Psychometric analyses examined dimensionality and statistical validation, and determined scoring thresholds for depression and anxiety risk subscales. Results: CSS-Spanish represented key concerns across five factors and exhibited strong internal consistency and test-retest reliability, convergent validity, and known-groups validity. Risk subscales demonstrated adequate sensitivity. Conclusion: CSS-Spanish is a reliable, valid multidimensional distress screener that rapidly assesses needs of Hispanic and Latino individuals. Embedded depression and anxiety risk flags can support staff in identifying those with high-acuity needs.