{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T12:28:56Z","timestamp":1792326536380,"version":"4.4.0"},"reference-count":26,"publisher":"Springer Science and Business Media LLC","issue":"6","license":[{"start":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T00:00:00Z","timestamp":1771459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T00:00:00Z","timestamp":1771459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100004047","name":"Karolinska Institute","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100004047","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["AIDS Behav"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Despite evidence that undetectable equals untransmittable (U=U), negative attitudes toward people living with HIV persist among men who have sex with men (MSM). We examined HIV-related knowledge, attitudes and relationship willingness among Swedish MSM and evaluated an anti-stigma campaign. Repeated cross-sectional online surveys of MSM aged\u2009\u2265\u200918\u00a0years were conducted in Sweden (2020\u20132021) before and after an anti-stigma campaign. Participants were recruited via LGBTQIA+ media and dating or cruising platforms. Multivariable logistic regression adjusted for sociodemographic and behavioral factors. We analyzed 3100 pooled responses and 1132 post-campaign responses. Knowledge gaps were substantial: 72% had not encountered U=U messaging and only 53% knew that treatment prevents transmission. Nearly half expressed unwillingness to consider relationships with people living with HIV. Negative attitudes decreased with higher knowledge (adjusted odds ratio [aOR] 0.38; 95% confidence interval [CI] 0.28\u20130.53) and increased with greater worry (aOR 3.66; CI 2.75\u20134.90). Greater relationship willingness was associated with higher HIV knowledge (aOR 3.79; CI 2.67\u20135.41). Less negative attitudes and greater relationship willingness were also linked to openness about sexual orientation. Campaign exposure was significantly associated with higher knowledge, less negative attitudes, lower worry, and greater relationship willingness. U=U awareness remains limited and stigma persists. The interrelations between knowledge, worry, and attitudes highlight cognitive and emotional dimensions of stigma. Observed links with campaign exposure suggest potential value of concise, context-specific U=U-centered communication in addressing stigma among MSM.<\/jats:p>","DOI":"10.1007\/s10461-025-04972-9","type":"journal-article","created":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T13:07:50Z","timestamp":1771506470000},"page":"1699-1712","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Attitudes, Knowledge, and Worry About HIV in the U=U Era: A Campaign with Before-After Surveys Among HIV-Negative Men Who Have Sex with Men in Sweden"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3594-8849","authenticated-orcid":false,"given":"Carl Fredrik","family":"Sj\u00f6land","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3148-2909","authenticated-orcid":false,"given":"Nicklas","family":"Dennermalm","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lena","family":"Nilsson Sch\u00f6nnesson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karin","family":"Laine","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erica","family":"Kanon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Suarez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1187-9095","authenticated-orcid":false,"given":"Anna Mia","family":"Ekstr\u00f6m","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,19]]},"reference":[{"issue":"2","key":"4972_CR1","doi-asserted-by":"publisher","first-page":"e129","DOI":"10.1016\/S2352-3018(19)30343-1","volume":"7","author":"GZ Andersson","year":"2020","unstructured":"Andersson GZ, Reinius M, Eriksson LE, Svedhem V, Esfahani FM, Deuba K, et al. Stigma reduction interventions in people living with HIV to improve health-related quality of life. Lancet HIV. 2020;7(2):e129\u201340.","journal-title":"Lancet HIV"},{"issue":"42","key":"4972_CR2","doi-asserted-by":"publisher","first-page":"2400058","DOI":"10.2807\/1560-7917.ES.2024.29.42.2400058","volume":"29","author":"E Lundgren","year":"2024","unstructured":"Lundgren E, Locke M, Romero-Severson E, Dimitrijevic M, Axelsson M, Andersson E, et al. Sweden surpasses the UNAIDS 95\u201395-95 target: estimating HIV-1 incidence, 2003 to 2022. Eurosurveillance. 2024;29(42):2400058.","journal-title":"Eurosurveillance"},{"key":"4972_CR3","unstructured":"UNAIDS. Evidence for eliminating HIV-related stigma and discrimination [Internet]. 2020 Apr [cited 2023 May 18]. 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This study is reported in accordance with the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines for cross-sectional studies.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical Approval"}}]}}