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. 2021 Feb 5;16(2):e0246328. doi: 10.1371/journal.pone.0246328

Fig 4. Correlations between the initial SAS score and the improvement in SAS score.

Fig 4

A: The correlation of STEC by year. B: The correlation of EC alone by year. Significant, moderate correlations were seen in STEC group and EC alone groups in 2020 in which the average initial SAS scores were much higher. SAS: Zung’s Self-rating Anxiety Scale, ST: sound therapy, EC: educational counseling.