Demographics of the sample
| Group | n | Mean age (years) (range) | Sex (M/F) |
|---|---|---|---|
| F, female; M, male. | |||
| Child Tourette syndrome | 56 | 12.8 (8 to 17) | 40/16 |
| Adult Tourette syndrome | 44 | 37.8 (18 to 61) | 32/12 |
| Child streptococcal infection | 40 | 9.8 (2 to 15) | 25/15 |
| Child neurological disease | 50 | 7.6 (0.5 to 18) | 24/26 |
| Adult healthy controls | 50 | 35.6 (19 to 57) | 25/25 |
| Adult neurological disease controls | 50 | 41.1 (19 to 70) | 30/20 |