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. 2025 Aug 12;12:1657223. doi: 10.3389/fmed.2025.1657223

Table 1.

Yale Global Tic Severity Scale (YGTSS).

Date 20-Nov-23 10-May-24
Classification of tic Motor Phonic Motor Phonic
Number 3 3 2 2
Frequency 1 5 1 2
Intensity 3 4 2 2
Complexity 1 1 1 1
Interference 1 4 1 1
Score of functional impairment 40 20
Total motor tic score 9 7
Total phonic tic score 17 8
Total tic score (TTS) 66 35

According to the YGTSS severity scale, a total YGTSS score of ≤25 is considered mild, 25< total YGTSS score ≤50 is considered moderate, and a total YGTSS score of >50 is considered severe. Our patient’s condition was reduced from severe to moderate.