Table 2.

Patient Demographics

Variable	No. of patients (%)
Age at enrollment (yrs)
Younger than 2	349 (16.9)
2 to <5	330 (15.9)
5 to <10	431 (20.8)
10 to <13	245 (11.8)
13 to <18	403 (19.5)
18 to <22	200 (9.7)
22 or older	112 (5.4)
Sex
Male	975 (47.1)
Female	1095 (52.9)
Race/ethnicity
Non-Hispanic white	1309 (64.2)
Non-Hispanic black	132 (6.5)
Hispanic or Latino	487 (24.2)
Other	142 (5.2)
SB type
Myelomeningocele	1686 (81.5)
Meningocele	55 (2.7)
Lipomyelomeningocele	279 (13.5)
Fatty Filum	49 (2.4)
Level of lesion
Thoracic (flaccid lower extremities)	295 (14.3)
High-lumbar (hip flexion present)	197 (9.5)
Mid-lumbar (knee extension present)	530 (25.6)
Low-lumbar (foot dorsiflexion present)	370 (17.9)
Sacral (foot plantar flexion present)	678 (32.8)

Note: Site distribution ranged from 61 (2.9%) to 382 (18.5%).

SB, spina bifida.