2026-09-28 フロリダ大学（UF）
＜関連情報＞
- https://ufhealth.org/news/2026/u-s-cancer-diagnoses-drop-outcomes-worse-during-holidays
- https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2853921
暦月ごとの癌診断の季節的パターンとその影響 Seasonal Patterns and Implications of Cancer Diagnosis Across Calendar Months
Abdul-Qahar K. Yasinzai, MD; Paul L. Crispen, MD; Devika Das, MD, MSHQS;et al
JAMA Network Open Published:September 11, 2026
DOI:10.1001/jamanetworkopen.2026.33385
Introduction
Timely diagnosis of and treatment initiation for cancer are critical for optimizing survival outcomes. Delays in diagnosis, even when measured in weeks, have been shown to result in a stage migration.1 Studies suggest that seasonal calendar–related events, including holidays and vacation seasons, are associated with reduced health care delivery and accessibility.2 Variations in monthly diagnostic patterns, whether due to patient behavior, scheduling availability, health care access, or other seasonal factors, may represent overlooked factors for patients seeking cancer care. We aimed to characterize monthly variation in the proportion of cancer diagnoses, stage at diagnosis, and net survival across the calendar year in the US as a hypothesis-generating examination of potential health-system influences on diagnostic timing. Our study may lead to quality improvement initiatives with the goal of identifying factors of monthly variations in cancer care.
