a trend toward significanceP = 0.061
The highest AFS grade within the initial year showed a trend toward significance, particularly for grades 0.5–2 (OR = 4.900; 95% CI = 1.052–34.946, P = 0.061) and 3–4 (OR = 4.224; 95% CI = 0.851–30.839, P = 0.097), although these were not statistically significant.