“…SAS was developed by W. K. Zung and consisted of 20 items to evaluate the degree of anxiety. The scale was scored by Likert 4 Grade [ 14 ]; the SAS standard score was 50; higher scores denoted greater anxiety; the Cronbach's alpha coefficient for the scale was 0.872, and the validity was 0.840. The severity of anxiety and depressive symptoms increases with greater SAS and SDS scores.…”