Table 4 Four models of determinants of health utility at age 19 (n = 684), unstandardized regression coefficient B, 95% confidence interval for B (95% CI) and standardized regression coefficient Beta and amount of variance explained by model R ²

Model 1: demographics and environment (R² =0.06)

SES

0.004

−0.017–0.024

0.015

Parental stress *

−0.002

−0.003–0.002

−0.241

Model 2: perinatal data added (R² =0.07)

SES

0.003

−0.017–0.024

0.013

Parental stress *

−0.002

−0.003–0.002

−0.241

Appropriate for age

−0.025

−0.059–0.010

−0.059

Model 3: physical data added (R² =0.23)

SES

−0.010

−0.029–0.009

−0.042

Parental stress *

−0.001

−0.002–0.001

−0.140

Appropriate for age

−0.024

−0.056–0.007

−0.058

Neuro-motor *

0.006

0.004–0.007

0.245

Handicap age 5 *

−0.090

−0.123– −0.057

−0.240

Model 4: psychological data added (R² =0.45)

SES

−-0.009

−0.025–0.008

−0.035

Parental stress

0.001

−0.001–0.000

−0.056

Appropriate for age

−0.013

−0.041–0.015

−0.031

Neuro-motor *

0.004

0.003–0.006

0.195

Handicap age 5 *

−0.094

−0.124– −0.056

−0.252

Internalizing *

−0.009

−0.011– −0.007

−0.349

Externalizing

−0.003

−0.006–0.001

−0.067

Self-efficacy

0.002

0.002–0.005

0.033

Coping adapt.

0.001

0.000–0.001

0.070

Coping non-adapt.

−0.002

−0.004–0.000

−0.070