Statistical Analysis
The sample size was calculated using OpenEpi (Version 3) assuming a prevalence of TZ3 of 20% before TA and 50% at the follow-up visit after TA according to our on-site experience. Using Fleiss' chi-squared approximation with continuity correction, a sample of 45 patients was found to be necessary to detect a difference in proportions at the 95% confidence level with an 80% power. We rounded that the number to 50 participants to account for potential missing data.For sociodemographic characteristics, quantitative variables were expressed as medians and interquartile range (IQR). Categorical variables were expressed as percentages and 95% CIs. The difference in proportions before and after TA was analyzed using Pearson's chi-squared test with a 