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We attempted to calculate the power of our sample to reject the null hypothesis. Due to the heterogeneity of the results obtained in previous studies and the small size of our cohort, we eventually refrained from a post-hoc power calculation. The SEFAS score is reported as the mean and standard deviation (SD) in accordance with previous publications (Cöster et al. 2017). Student’s t-test and relative risk (RR) with 95% confidence intervals (CI) were calculated to test differences in the outcome variables between groups.

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