Hospital volume differences and five-year survival from breast cancer

P J Roohan, N A Bickell, M S Baptiste, G D Therriault, E P Ferrara, A L Siu, P J Roohan, N A Bickell, M S Baptiste, G D Therriault, E P Ferrara, A L Siu

Abstract

Objectives: The purpose of this study was to determine the effect of hospital volume on long-term survival for women with breast cancer.

Methods: Survival analysis and proportional-hazard modeling were used to assess 5-year survival and risk of death, adjusting for clinical and sociodemographic variables.

Results: At 5 years, patients from very low-volume hospitals had a 60% greater risk of all-cause mortality than patients from high-volume hospitals.

Conclusions: Hospital volume of breast cancer surgical cases has a strong positive effect on 5-year survival. Research is needed to identify whether processes of care, especially postsurgical adjuvant treatments, contribute to survival differences.

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