Table 2

 Referral sources for TS study subjects in three genetic studies

Referral sourceAshkenazi (n = 132)Costa Rican (n = 119)Sibling pairs (n = 46)Total (n = 297)
Values are % (n).
χ2 = 244.4, p<0.0001, df = 8.
Healthcare professionals72.9 (96)52.5 (63)53.5 (159)
TSA23.3 (31)100 (46)25.8 (76)
Family members3.8 (5)3.33 (4)3.0 (9)
Media40 (47)16.0 (47)
Schools4.2 (5)1.7 (5)