TOPLINE:

In a matched cohort study of 410,120 patients with cancer, emergency department (ED) visits within 90 days before diagnosis were associated with a significantly increased risk for mortality, and the elevated risk persisted through 7 years of follow-up.

METHODOLOGY:

Researchers conducted a retrospective study of 410,120 adults diagnosed with cancer between 2014 and 2021 in Ontario, Canada, with follow-up until death, 7 years, or March 31, 2024.

A total of 205,060 patients who had ED visits in the 90 days before cancer diagnosis were matched 1:1 with patients without such visits, based on sex, year of diagnosis, and propensity scores.

The primary outcome was all-cause mortality.

TAKEAWAY:

Overall mortality was 61.7% in patients with ED use vs 37.8% in those without ED use; th

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