Table 5

Case control difference scores on selected measures of cognitive and academic function by creatinine severity group5-150

AssessmentSeverity group 1Severity group 2Severity group 3p Value5-151
n HUS5-152 Control5-152 Difference5-153 nHUSControlDifferencenHUSControlDifference
Wechsler
Verbal IQ27101.7104.8−2.6  (3.4)31108.8103.4−0.4  (3.4)33100.8107.8−6.0  (2.9)0.69
Performance IQ27105.5103.92.3 (2.7)31109.2105.71.3 (3.4)33101.8106.8−5.1 (2.9)0.26
Full scale IQ27104.1104.40.4 (3.0)31110.0104.60.8 (3.2)33101.5107.1−5.4 (2.3)0.37
WIAT
Reading25107.699.76.5 (4.0)26111.4 103.18.0 (3.7)2998.5101.9−4.1 (2.6)0.008
Mathematics25101.399.82.1 (3.4)26104.4102.46.3 (5.0)2999.3101.5−2.6 (2.4)0.50
Spelling25103.498.14.8 (2.9)26106.997.85.8 (3.7)2996.3102.5−5.5 (3.2)0.05
WRMT
Word identification25106.698.1 6.1 (4.0)26107.299.9 5.8 (4.3)2897.1101.1−4.6 (3.7)0.02
Passage composition25101.3100.10.3 (3.4)26103.1102.03.7 (3.9)2894.598.0−2.7 (3.5)0.06
Total reading 24105.0100.14.3 (4.2)26106.0100.85.3 (4.1)2895.5100.0−4.2 (3.9)0.02
TOWL-2 18104.897.45.1 (5.7)14107.791.818.1 (6.3)2097.0104.6−10.1 (4.2)0.18
PPVT-R 27105.4105.32.3 (4.6)31111.6102.15.2 (3.5)33102.4109.6−6.2 (2.7)0.34
SBSM 2752.250.30.9 (2.0)3154.852.93.6 (1.7)3350.350.6−1.8 (1.7)0.29
  • 5-150 Creatinine severity groups are defined in table 4.

  • 5-151 Comparison of creatinine severity group mean differences between pairs using weighted linear trend analysis.

  • 5-152 Values for HUS and controls are the group means.

  • 5-153 Values for differences are the mean (SE) differences between paired patients with HUS and controls.

  • PPVT-R, Peabody picture vocabulary test–revised; SBSM, Stanford-Binet intelligence scale (4th ed) sentence memory test; TOWL-2, test of written language–2; WIAT, Weschler individual achievement tests; WRMT, Woodcock reading mastery tests.