Statistical Analysis
Patient demographics were reported descriptively. FACE-Q ratings (0–4) were transformed to the equivalent RASCH score ranging from 0 to 100. Linear models were computed to investigate whether the change in RASCH score after surgery depended on the suturing technique. The difference in RASCH score at month 3 after blepharoplasty and baseline was defined as the dependent variable and the study group as well as the baseline RASCH score as the explanatory variables. The baseline RASCH score was centered to obtain reasonable estimates of a baseline difference for an average baseline score. Linear models were fitted separately for the RASCH satisfaction score and RASCH appraisal score.Estimates, 95%-confidence intervals and 