{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T07:55:39Z","timestamp":1791186939834,"version":"4.1.0"},"reference-count":37,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Health Science Reports"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background and Aims<\/jats:title>\n                    <jats:p>Despite the high effectiveness of HPV vaccination, uptake among young adults remains suboptimal. Healthcare policies, vaccine hesitancy, and sources of vaccine information may contribute to differences in vaccination behaviors across countries. To examine cross\u2010national and sex\u2010specific differences in HPV vaccine uptake and hesitancy among undergraduates in the US and Korea, and investigate the role of information sources.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      This cross\u2010sectional study targeted undergraduate students in the US and Korea aged between 18 and 25. Data was collected from August 29, 2023, to February 20, 2024 using an online survey through social media exclusive to college students (Korea) and a university listserv (US). A total of 224 survey responses were analyzed after removing missing data (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200943). HPV vaccine hesitancy, uptake, and frequency of information source use were assessed.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      HPV vaccine uptake was substantially higher in the US than in Korea (74.0% vs. 33.1%), with a significant sex gap observed only in Korea. Although no significant cross\u2010national differences in HPV vaccine hesitancy were observed, sex\u2010specific patterns emerged within each country (OR\u2009=\u20095.3; 95% CI\u2009=\u20091.1\u201325.3;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.035). In the US, females reported slightly higher hesitancy than males, whereas in Korea, males reported greater hesitancy than females. In multivariable logistic regression, frequent use of social media was associated with higher odds of HPV vaccine hesitancy (OR\u2009=\u20093.3, 95% CI\u2009=\u20091.0\u201310.4,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.043), while frequent use of professional organizations as an information source was associated with lower odds of hesitancy (OR\u2009=\u20090.4, 95% CI\u2009=\u20090.2\u20130.9,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.024).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Tailored public health strategies that address social media's potential role in shaping HPV vaccine hesitancy, while expanded policy support in Korea could improve uptake and reduce hesitancy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/hsr2.73181","type":"journal-article","created":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T06:50:11Z","timestamp":1788418211000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["HPV Vaccine Uptake, Hesitancy and Information Sources Among Young Adults: A Cross\u2010Sectional Study of Korea and the US"],"prefix":"10.1002","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2129-4373","authenticated-orcid":false,"given":"Soojung","family":"Jo","sequence":"first","affiliation":[{"name":"School of Nursing Purdue University West Lafayette Indiana USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8265-1912","authenticated-orcid":false,"given":"Dongjuan","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Nursing Purdue University West Lafayette Indiana USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0995-0291","authenticated-orcid":false,"given":"Hwanseok","family":"Song","sequence":"additional","affiliation":[{"name":"Brian Lamb School of Communication Purdue University West Lafayette Indiana USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,2]]},"reference":[{"key":"e_1_2_12_2_1","unstructured":"Centers For Disease Control and Prevention.2024.About HPV[Online] https:\/\/www.cdc.gov\/hpv\/about\/index.html[Accessed March 1 2025]."},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.3346\/jkms.2012.27.9.1091"},{"key":"e_1_2_12_4_1","unstructured":"National Cancer Institute.2023.HPV and Cancer[Online].https:\/\/www.cancer.gov\/about-cancer\/causes-prevention\/risk\/infectious-agents\/hpv-and-cancer[Accessed July 2024 24]."},{"key":"e_1_2_12_5_1","unstructured":"Centers For Disease Control And Prevention.2021a. [Online].https:\/\/www.cdc.gov\/vaccines\/vpd\/hpv\/hcp\/recommendations.html[Accessed January 08 2022]."},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.mm7234a3"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamanetworkopen.2023.56875"},{"key":"e_1_2_12_8_1","unstructured":"Centers For Disease Control And Prevention.2021b.Paying for HPV Vaccine[Online]. Accessed October 19 2024 https:\/\/www.cdc.gov\/vaccines\/vpd\/hpv\/hcp\/payment.html."},{"key":"e_1_2_12_9_1","unstructured":"Korea Disease Control And Prevention Agency.2025.HPV Gukga Yebangjeokjong Saeop [HPV National Immunizational Program][Online]. Accessed March 1 2025 https:\/\/nip.kdca.go.kr\/irhp\/infm\/goVcntInfo.do?menuLv=1&menuCd=132."},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.4167\/jbv.2020.50.3.158"},{"key":"e_1_2_12_11_1","unstructured":"World Health Organization.2019.Ten Threats to Global Health in 2019[Online]. 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