Assessing the Impact of Multidisciplinary Cancer Consultations on Cancer Quality Metrics.

Objective: Multidisciplinary cancer consultations play a critical role in the delivery of quality cancer care by promoting treatment planning and collaborative decision-making. The objective of this study was to evaluate associations between multidisciplinary cancer consultations and receipt of guideline-recommended adjuvant treatments among breast, colorectal, or non-small cell lung cancer patients and assess these associations between and within racial and ethnic groups.

Methods: This is a population-based retrospective cohort study using the Surveillance, Epidemiology, and End Results (SEER), Medicare-linked data (2006-2016) to identify Medicare beneficiaries diagnosed with nonmetastatic breast, colorectal, or non-small cell lung cancer. Multidisciplinary cancer consultation was based on encounters with 2 or more oncology providers within 2 months of diagnosis. Cancer quality metrics assessed included receipt of guideline-recommended adjuvant cancer treatment for each cancer type.

Results: Patients with multidisciplinary cancer consultations were more likely to receive adjuvant cancer treatment compared with patients without multidisciplinary cancer consultations within racial and ethnic groups. However, non-Hispanic Black and Hispanic breast cancer patients with multidisciplinary cancer consultations were 24% and 41% less likely to receive hormone and radiation therapy, respectively, compared with NHWs with multidisciplinary cancer consultations.

Conclusions: Patients with multidisciplinary cancer consultations were more likely to receive adjuvant cancer treatment, but racial and ethnic disparities in cancer care persist. Multidisciplinary cancer consultations are likely an important, but not fully sufficient, contributor to the receipt of adjuvant cancer treatment and may be a tool in the implementation of multipronged, team-based cancer care delivery models to reduce inequities in cancer-related outcomes.