ArticleBMC oral health2026
The effect of the COVID-19 pandemic on orthognathic surgery in Sweden - a registry-based study.
Article in BMC oral health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- Cardiovascular Benefit and Gastrointestinal Risk of Colchicine in Secondary Prevention: Risk Associated with Dose and Treatment Duration.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2026Pooled it
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe COVID-19 pandemic had a noticeable impact on healthcare services. The restrictions imposed during the pandemic where extensive, and in Sweden, elective surgery was deprioritized to make room for the most severely affected patients. This study aimed to evaluate the effect of the COVID-19 pandemic on the volume of orthognathic surgery (OGS) in Sweden, and to compare the impact between regional and university hospitals.
methodsThis registry-based study used national data from the National Quality Registry for Orthognathic Surgery (NROK). OGS performed during 2018–2022 and registered in NROK were included. The follow-up time was divided into three time periods: pre-pandemic, pandemic and post-pandemic. Of 21 hospitals performing OGS in Sweden, 18 (11 regional and seven university hospitals) were included in the final analysis. Differences in national monthly means were analyzed using one-way ANOVA and Kruskal-Wallis tests, with post hoc comparisons. Linear regression was used to assess differences in trends between hospital types.
resultsThe national monthly mean of OGS was significantly lower during the pandemic compared to both the pre-pandemic period (− 13.7 surgeries, 95% CI: 3.6–23.8; p < 0.01) and the post-pandemic period (− 15.6 surgeries, 95% CI: 2.6–28.7; p < 0.05). University hospitals experienced a 40.7% reduction in surgeries during the pandemic (p < 0.001), whereas the reduction at regional hospitals (− 19.7%) was not statistically significant (p = 0.603). No significant differences were found between the pre- and post-pandemic periods, neither in national monthly means nor when comparing hospital types.
conclusionsA significant decrease in the number of OGS was observed during the pandemic in Sweden. No statistically significant difference was found between the pre- and post-pandemic periods, suggesting a meaningful normalization in the frequency of OGS in Sweden following the pandemic, although not accounting for possible surgical backlog. University hospitals appeared to experience a greater relative decrease in surgical volume during the pandemic compared to regional hospitals. This difference may be attributable to lower baseline volumes at regional hospitals rather than a differential impact of the pandemic itself.
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