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Self-perceived academic performance was measured with the Academic Performance Scale (APS) and analyzed as a continuous score. Bivariate group comparisons between lower and higher self-perceived academic performance used the Mann-Whitney U test or Welch\u2019s t-test with effect sizes, and the Holm-Bonferroni procedure to control the family-wise error rate within families of outcomes. The primary analysis was a hierarchical linear regression on the continuous APS score, entering demographics, then total screen time, then purpose-specific screen use, then a psychological symptom burden composite and 3Q-TMD screening status.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Total screen time was unrelated to academic performance in every analysis. Purpose-specific screen use added 19.0% of explained variance beyond total duration (F(3,81)\u2009=\u20096.78,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), whereas total duration added 2.2% beyond purpose and was not significant (F(1,81)\u2009=\u20092.37,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.127). In the full model (R2\u2009=\u20090.341, adjusted R2\u2009=\u20090.266), academic screen use was positively associated with performance (\u03b2\u2009=\u20090.426,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), while work-related screen use (\u03b2 = -0.299,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.003) and psychological symptom burden (\u03b2 = -0.361,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001) were negatively associated with performance. Students reporting lower performance also reported poorer health-related quality of life in five of eight RAND-36 domains and were more likely to have a positive 3Q-TMD screening result, although the latter association did not survive adjustment for oral parafunctional behavior.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Self-perceived academic performance was associated with the purpose of screen use and with psychological symptom burden, but not with total screen-time duration.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12909-026-10445-x","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T12:55:39Z","timestamp":1789995339000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Screen use, health status, and self-perceived academic performance among Swedish dental and nursing students: an exploratory cross-sectional survey study"],"prefix":"10.1186","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8199-7863","authenticated-orcid":false,"given":"Nikolaos","family":"Christidis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-2547-5536","authenticated-orcid":false,"given":"Moa","family":"L\u00e4rfars","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-1396-7333","authenticated-orcid":false,"given":"Parul","family":"Khattar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-2944-152X","authenticated-orcid":false,"given":"Damyana","family":"Markus","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0921-342X","authenticated-orcid":false,"given":"Giancarlo De la Torre","family":"Canales","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6804-6855","authenticated-orcid":false,"given":"Maria","family":"Christidis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,9,21]]},"reference":[{"key":"10445_CR1","doi-asserted-by":"publisher","first-page":"100305","DOI":"10.1016\/j.edurev.2019.100305","volume":"29","author":"CF Rodr\u00edguez-Hern\u00e1ndez","year":"2020","unstructured":"Rodr\u00edguez-Hern\u00e1ndez CF, Cascallar E, Kyndt E. 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