Purpose: High incidence rates for cervical cancer in adolescents and young adults (AYAs: 15-29 years) make this the most common carcinoma in Brazil. Our aim was to analyze the incidence trends for cervical cancer (CC) and in situ neoplasia (IsN) among this age group.
Methods: Incidence data were extracted from 21 Brazilian population-based cancer registries (PBCRs). Tumors with behavior code/3 (malignant) were classified as CC. Tumors with behavior code/2 were classified as IsN. Age-adjusted and age-specific incidence rates were calculated for individuals aged 15-19 years, 20-24 years, and 25-29 years. Incidence trends were evaluated by joinpoint regression analyses.
Results: The median incidence rate of CC for AYA in Brazil was 3.63 per 100,000, with the highest rate observed in Recife (27.50 per 100,000). Significant increase in incidence for CC was identified in two PBCRs, with decreased rates for three PBCRs. The median incidence rate of IsN was 16.78 per 100,000 and was highest in Roraima (93.37 per 100,000). Increased incidence rates for IsN were identified in six PBCRs, with significant decreases in two PBCRs.
Conclusion: The incidence rate for CC among AYA in Brazil is high and warrants intervention in terms of both prevention and control.
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