Assuntos
Dermatologia , Medicare , População Rural , Humanos , Estados Unidos , Medicare/economia , Medicare/estatística & dados numéricos , Dermatologia/economia , Dermatologia/estatística & dados numéricos , População Rural/estatística & dados numéricos , População Urbana/estatística & dados numéricos , Disparidades em Assistência à Saúde/economia , Disparidades em Assistência à Saúde/estatística & dados numéricos , Assistência Ambulatorial/economia , Assistência Ambulatorial/estatística & dados numéricos , Idoso , Feminino , Masculino , Pacientes Ambulatoriais/estatística & dados numéricos , Custos de Cuidados de Saúde/estatística & dados numéricos , Dermatopatias/economia , Dermatopatias/terapia , Dermatopatias/epidemiologiaRESUMO
BACKGROUND: Field cancerization is poorly defined in dermatology. The author group previously proposed and applied a classification system in an original cohort to risk-stratify patients with field cancerization. OBJECTIVE: Apply the authors' classification system within a validation cohort. METHODS: Patients with keratinocyte carcinoma history completed a survey regarding demographic information, medical history, and chemoprevention use. Patients were assigned a field cancerization class, and differences between validation and original cohorts were assessed. RESULTS: A total of 363 patients were enrolled (mean age 67.4; 61.7% male). After comparing validation and original cohorts, there were differences in age between class II (p = .02) and class IVb (p = .047), and differences in chemoprevention use in class III (p = .04). Similar to the original cohort, the validation cohort was associated with increases in total number of skin cancers in the last year (p < .001), 5 years (p < .001), lifetime (p < .001), years since first skin cancer (p < .001), and chemoprevention use (p < .001). In the validation cohort, there were increases in age (p = .03) and immunocompromised status (p = .04) with increasing class, which were not observed in the original cohort. CONCLUSION: Differences among field cancerization classes were similar in a validation cohort, further highlighting the importance of class-specific treatment and management.