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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

From: Long term follow-up of health-related quality of life in young adults born very preterm or with a very low birth weight

  B 95% CI Beta
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
  1. * = p < 0.05.