170387 20260420103354.0 doi 10.3390/healthcare14060774 sideral 148890 ART-2026-148890 eng Gómez-Torres, Piedad (orcid)0000-0003-0045-7871 Shifts with nights and migraine prevalence among nurses: a systematic review and meta-analysis 2026 Background: Fixed night work and rotating schedules including nights may contribute to migraine via sleep disruption and circadian misalignment, but evidence is inconsistent and definitions vary. This systematic review and meta-analysis compared past-year migraine prevalence in nurses working night-inclusive schedules versus day-only or non-night schedules. Methods: Following PRISMA 2020 and registered in PROSPERO (CRD420261304288), we searched PubMed, Scopus, Web of Science, CINAHL, and the Cochrane Library from inception to 3 February 2026 (English/Spanish). Observational studies in nurses (≥18 years) reporting past-year migraine prevalence by shift pattern were eligible. All included studies assessed past-year prevalence; pooled PRs reflect 1-year prevalence. Crude prevalence ratios (PRs) were calculated from contingency tables and pooled quantitatively. Risk of bias was assessed with the JBI prevalence checklist. Results: We identified 54 records; 4 studies were included (N = 3843) of which 3323 participants contributed to the comparative meta-analysis because complete disaggregated data were available to construct contingency tables. The pooled association between night-inclusive schedules and migraine prevalence was not statistically significant (PR = 0.95, 95% CI 0.82–1.10; I2 = 0%). Secondary intensity contrasts were inconclusive (high vs. low: PR = 1.24, 95% CI 0.46–3.36; high vs. zero nights: PR = 0.85, 95% CI 0.38–1.93). Conclusions: Current nurse-specific evidence does not show a statistically significant difference in migraine prevalence between night-inclusive and non-night schedules; however, the small evidence base and limited generalizability preclude firm conclusions. Future longitudinal studies are needed to clarify this association. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Ruger-Navarrete, Azahara Lasso-Olayo, Laura Universidad de Zaragoza (orcid)0000-0002-5556-882X Blázquez-Ornat, Isabel Universidad de Zaragoza (orcid)0000-0002-8197-9884 Peña-Otero, David Galarreta-Aperte, Sergio 1006 255 Universidad de Zaragoza Dpto. Fisiatría y Enfermería Área Enfermería 14(6), 774 (2026), 15 Healthcare (Basel) Healthcare (Switzerland) 2227-9032 1124138 http://zaguan.unizar.es/record/170387/files/texto_completo.pdf Versión publicada 2269373 http://zaguan.unizar.es/record/170387/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:170387 articulos driver 2026-04-18-10:48:33 ARTICLE