Table 4 Group demographics
|  | STAR group (n = 20) | NSA group (n = 24) | t-test | p |
|---|---|---|---|---|
Age at first study (years) | 3.909 +/− 1.248 | 4.522 +/− 1.800 | 1.29 | n.s. |
Time between studies (years) | 2.136 +/− 1.609 | 1.904 +/− 0.989 | 0.49 | n.s. |
Age at regression (months) | 18.925 +/− 9.928 |  |  |  |
Length of regression (weeks) | 20.053 +/− 12.70 |  |  |  |
Length of treatment (months) | 9.125 +/− 3.26 |  |  |  |
Gender | 18 males, 2 females | 18 males, 6 females | Â | n.s. |
Handedness | 18 right, 2 left | 23 right,1 left | Â | n.s. |
Subjects with history of regression (n) | 20 of 20 | 7 of 24 | Â | 0.0001 |