{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T08:20:45Z","timestamp":1784622045924,"version":"3.55.0"},"reference-count":33,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T00:00:00Z","timestamp":1772064000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/100000054","name":"National Cancer Institute at the National Institutes of Health","doi-asserted-by":"publisher","award":["R01 CA241125"],"award-info":[{"award-number":["R01 CA241125"]}],"id":[{"id":"10.13039\/100000054","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In the US, Asian American females with breast cancer have better survival than other groups, and survival differs across Asian American ethnicities. Reasons remain unclear.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We compared the survival of 5294 Asian American ethnicities and 5294 non-Latina White (NLW) females with incident stage I-IV breast cancer (2000-2015) in Kaiser Permanente Northern California. With follow-up through December 31, 2020, survival analysis was conducted using cause-specific Cox proportional hazards models adjusting for sociodemographic, clinical, treatment, social environment, and lifestyle factors. Overall, 1048 deaths (581 breast cancer-related) occurred in Asian American females and 1673 deaths (779 breast cancer-related) in NLW females.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Compared with NLW females, Asian American females were younger (median\u2009=\u200956.2 vs. 63.0\u2009years), lived in the highest socioeconomic status neighborhoods (Quintiles 4\/5\u2009=\u200957.7% vs. 50.3%), had fewer comorbidities (45.2% vs. 35.9% with zero), had a lower body mass index (BMI) (median = 24.8 vs. 27.4\u2009kg\/m2), and never smoked (47.2% vs. 26.9%), varying by Asian American ethnicity. All-cause mortality was lower in Asian American than NLW females (hazard ratio [HR] = 0.82; 95% CI = 0.74 to 0.91). Chinese (HR\u2009=\u20090.84; 95% CI = 0.70 to 1.00), Japanese (HR\u2009=\u20090.69; 95% CI = 0.55 to 0.88), and South Asian (HR\u2009=\u20090.73; 95% CI = 0.53 to 0.99) females had persistent survival advantages over NLW females. Adjusting for BMI and smoking attenuated associations. For breast cancer-specific mortality, associations were similar, though statistically non-significant.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Asian American females\u2014especially those of Chinese, Japanese, and South Asian descent\u2014had better survival than non-Latina NLW females. Disaggregating Asian American ethnicities clarifies survival differences and may inform research on personal, social, and lifestyle factors to benefit all patients.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/jnci\/djag062","type":"journal-article","created":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T08:21:01Z","timestamp":1774513261000},"page":"1266-1277","source":"Crossref","is-referenced-by-count":2,"title":["Differences in breast cancer survival across Asian American ethnicities compared with non-Latina White females in Kaiser Permanente Northern California"],"prefix":"10.1093","volume":"118","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8863-3950","authenticated-orcid":false,"given":"Marilyn L","family":"Kwan","sequence":"first","affiliation":[{"name":"Division of Research, Kaiser Permanente Northern California , Pleasanton, CA,","place":["United 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