A total of 214 patients participated. The median age was 47.9 years (interquartile range (IQR): 36.4–60.6), and the median face appreciation was 5 (IQR: 5–7). The preference for the mirror-reversed photograph was significantly different from chance (p < 0.001, binomial (214, 156, 0.5)); 73% of the patients preferred the mirror-reversed photographs.
The proportions of patients who preferred the mirror-reversed photograph differed significantly (p = 0.047) between Groups 1 (84%) and 2 (70%).