Table 2

Mean (SD) psychosocial and academic outcomes for outpatient and inpatient groups (0–10 years) compared with the reference group

Unadjusted meansAdjusted means§
Reference groupOutpatient groupInpatient groupFp LevelReference groupOutpatient groupInpatient groupFp Level
*Significant effect across three groups; †significantly different from reference group; ‡significantly different from outpatient group. §Mean adjusted for 12 covariates (see table 1). ¶Ratings of attention and conduct, averaged over years 10–13; sample sizes vary from 788–807, 78–80, and 26–28 for the reference, outpatient, and inpatient groups respectively. **Sample sizes vary from 613–787, 64–80, and 22–26 for the reference, outpatient, and inpatient groups respectively. BURT10–13, average score on Burt Word Reading Test over ages 10–13; PATr10/12, Progressive Achievement Test (reading comprehension) at ages 10 and 12; PATm11, Progressive Achievement Test (Mathematics) at age 11. IQ, patient groups only for children injured before age 5.
Psychosocial outcomes
Attention ratings
    Mothers10.10 (2.6)10.13 (2.5)12.07 (3.8)†‡7.70<0.001*10.44 (2.6)10.10 (2.5)11.76 (3.8)†‡5.01<0.01*
    Teachers9.44 (2.7)9.66 (3.0)11.65 (3.1)†‡8.08<0.001*9.73 (2.7)9.62 (3.0)11.41 (3.1)†‡5.40<0.01*
    Combined9.76 (2.3)9.88 (2.5)11.68 (2.6)†‡8.31<0.001*10.07 (2.3)9.85 (2.5)11.39 (2.6)†‡5.25<0.01*
Conduct ratings
    Mothers28.14 (4.7)29.13 (5.4)31.24 (6.1)†6.81<0.002*28.97 (4.7)28.99 (5.4)30.55 (6.1)1.93>0.10
    Teachers23.38 (4.9)23.81 (5.5)27.31 (6.2)†‡7.83<0.001*23.83 (4.9)23.71 (5.5)26.94 (6.2)†‡5.59<0.01*
    Combined25.77 (4.2)26.50 (5.0)29.34 (5.4)†‡9.26<0.001*26.43 (4.2)26.39 (5.0)28.79 (5.4)†‡4.84<0.01*
Academic outcomes**
BURT10–1375.86 (18.5)74.64 (20.5)69.51 (18.1)1.25>0.2574.71 (18.5)74.12 (20.5)71.18 (18.1)0.42>0.65
SchoolCert3.35 (2.2)3.33 (2.4)2.42 (2.3)2.10>0.103.15 (2.2)3.31 (2.4)2.63 (2.3)1.16>0.30
PATr1010.48 (7.0)10.60 (7.9)8.46 (6.9)0.96>0.3510.01 (7.0)10.59 (7.9)8.94 (6.9)0.58>0.55
PATr1212.97 (4.8)13.24 (4.6)12.26 (5.4)0.36>0.6512.56 (4.8)13.19 (4.6)12.72 (5.4)0.58>0.55
PATm1125.14 (7.3)25.27 (8.2)22.09 (7.1)1.85>0.1524.75 (7.3)25.19 (8.2)22.56 (7.1)1.23>0.25
IQ102.28 (15.2)101.23 (17.0)95.06 (19.5)1.89>0.15100.85 (15.2)101.36 (17.0)96.36 (19.5)0.86>0.40