Demographic characteristics of patients and control group
| Spina bifida patients | Control group | |
| No of patients | 23 | 23 |
| Sex (males/females) | 12/11 | 12/11 |
| Age | 22.52 (SD=6,52) | 21.61 (SD 6.15) |
| Education (y) | 10.87 (SD3.45) | 11.70 (SD 2.12) |
| WAIS/WISC: | ||
| Verbal IQ | 85.14 (SD 14.64) | — |
| Performance IQ | 86.14 (SD 18.79) | — |
| Full scale IQ | 84.38 (SD 16.81) | — |
WAIS=Wechsler intelligence scale for adults; WISC=Wechsler intelligence scale for children; IQ=intelligence quotient.