Results of intelligence testing; comparison of patients to siblings at the first evaluation shortly after diagnosis of ALL
| Wechsler scales | Patients Mean (SD) | Siblings Mean (SD) | t value | p value | 95% CI |
|---|---|---|---|---|---|
| WPPSI-R; V-IQ (information, similarities, arithmetic, vocabulary, digit span), P-IQ (object assembly, block design, mazes, picture completion, animal pegboard). | |||||
| WISC-R; V-IQ (information, similarities, arithmetic, vocabulary, digit span), P-IQ (picture completion, block design, object assembly, coding, mazes), Perceptual organisation factor (picture completion, block design, object assembly, mazes), Concentration factor (arithmetic, digit span, coding). | |||||
| 4–6 years | |||||
| WPPSI-R FS-IQ | 114.7 (16.7) | 101.5 (7.3) | 2.32 | 0.034 | 1.2 to 25.2 |
| WPPSI-R V-IQ | 116.1 (14.5) | 99.5 (8.4) | 2.59 | 0.019 | 3.1 to 30.1 |
| WPPSI-R P-IQ | 108.8 (13.9) | 106.0 (19.6) | 0.36 | 0.726 | −14.0 to 19.7 |
| 6–12 years | |||||
| WISC-R FS-IQ | 108.1 (15.4) | 107.1 (10.9) | 0.26 | 0.799 | −6.8 to 8.8 |
| WISC-R V-IQ | 106.9 (14.1) | 107.0 (10.8) | −0.04 | 0.970 | −7.3 to 7.0 |
| WISC-R P-IQ | 109.0 (17.5) | 108.0 (13.3) | 0.22 | 0.825 | −8.0 to 10.0 |
| WISC-R perceptual organisation | 109.5 (15.9) | 106.0 (14.1) | 0.80 | 0.428 | −5.3 to 12.2 |
| WISC-R concentration | 106.5 (15.0) | 108.0 (12.1) | −0.38 | 0.707 | −9.2 to 6.3 |