... which child health, at birth and at age 7, are correlated with the quality of the GP that the mother of the child is registered with at the child s birth, after controlling for a large set of ... large set of measures of physical and mental health, housing and socio-economics status (SES) of the mothers of the ALSPAC children to construct a measure of the health and SES of the younger ... measures of population need, the measures of ward and practice SES and health being most correlated with the practice achieving preventative care targets and staff to patient ratios, and the...