Abstract

To investigate treatment and survival over three decades. Clinical registry data from three major public hospitals analysed using Kaplan-Meier product-limit estimates and multivariate proportional hazard regression to determine disease-specific survival. Five-year survival increased from 75% to 84%. The adjusted hazard ratio (HR, 95% CI) was 0.56 (0.41, 0.77) for 2010-2016 compared with 1984-1989 and was higher for: ages 80+ years; more advanced stages; poorly differentiated tumours; and complex mixed epithelial and mesenchymal tumours and sarcomas. Treatment was by surgery (92%), radiotherapy (33%), chemotherapy (12%) and hormone therapy (10%). Adjusted analyses showed radiotherapy and hormone therapy were less common from 1990 and chemotherapy more common for 2010-2016. Treatment likelihood was lower for ages ≥80years, mixed epithelial and mesenchymal tumours receiving surgery and chemotherapy, but higher for radiotherapy. Advanced cancers (FIGO stage IV) had less surgery but more non-surgical treatments. Marginal evidence presented of more hormone therapy for high socio-economic areas. Survival was equivalent to national figures for Australia and the United States, but potentially higher than for England and Wales. Cases aged 80+ years had less care and poorer survival. Findings illustrate the complementary roles of hospital and population-based registries in local service evaluation.

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