Table 4.

WLS adminstrative data

Mortality data (updated quarterly)

Cause of death data (updated annually)

Wisconsin state tumour registry data

Medicare records

Social security lifetime earnings/benefits records

Geographical identifiers

Graduates’ parents’ earnings 1957–1960

Henmon–Nelson IQ scores 1954–1957

High school rank

School district data (teacher/student ratios, funding)

College/university characteristics

Data from high school yearbooks

Facial attractiveness

Facial mass index (obseity)

Participation in school activities (sports and interest clubs)

Respondent’s voting data

Area Resource Files

6000 variables containing information on health care facilities, health professions, measures of resource scarcity, health status, economic activity, health training programs and socio-economic and environmental characteristics