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. 2021 Sep 27;12:573803. doi: 10.3389/fpsyg.2021.573803

Table 1.

The clinical characteristics for different groups.

Groups N Male/female Mean age (SD) Total PUTS Mean (SD)
Total sample 367 293/74 9.53(2.06) 12.95 (3.27)
TS group 252 204/48 9.6 (2.17) 13.19 (3.23)
Younger group 230 183/47 8.5 (1.30) 12.48 (3.01)
Older group 137 110/27 12.4 (1.39) 13.54 (3.51)
P-value (younger vs. older) N/A 0.867 0.000 0.457

PUTS, Premonitory Urge for Tics Scale; SD, Standard Deviation; N/A, Not Available; Younger Group: age <10; Older Group: age ≥ 10.