TABLE 1

Patient Demographics

Age Group, yMean Age ± SD, y (n)% Male
ControlsCase-PatientsControlsCase-Patients
No AMSAMSNo AMSAMS
6–87.5 ± 1.0 (45)7.6 ± 0.9 (26)7.3 ± 0.8 (19)576568
9–1110.6 ± 0.9 (54)10.6 ± 0.6 (16)10.7 ± 0.7 (32)596372
12–1413.2 ± 0.8 (51)13.0 ± 0.9 (14)13.3 ± 0.9 (30)718667
15–1816.4 ± 0.9 (33)16.4 ± 0.9 (10)16.4 (0.7) (18)616061