Skip to main content

Table 1 Study data: sources, variables, selections and incomplete information

From: Striking variations in consultation rates with general practice reveal family influence

Source Study population Selection
One year registration of all face-to-face contacts of individuals in electronic medical records 160 926 individuals; 42 397 families Families with children 2–21 yrs (siblings of 0–2 yrs or >21 yrs within families were excluded)
One-page questionnaire sent at the patient's home 160 926 individuals; 42 397 families Families with children 2–21 yrs (siblings of 0–2 yrs or >21 yrs within families were excluded)
Extended health interview at the patient's home 5 313 individuals aggregated to families One member of families with children 2–21 yrs
Variable view Source Categorisation Incomplete information on family level
Generation One-page questionnaire Parent Child none
Age One-page questionnaire Excluded: families with siblings > 21 yrs (%) none
Sex One-page questionnaire Male Female none
Family health status registration in medical record Consultations for minor ailments: yes/no none
   Consultations for chronic illness: yes/no none
  One-page questionnaire Self-reported health status ranging from 1 (very good) to 5 (very bad) 10 366
Indicators for shared circumstances
Insurance type One-page questionnaire Social insurance Private insurance 10 176
Educational level parents One-page questionnaire Low/moderate: primary and secondary education High: post secondary and tertiary education 12162
Number of children One-page questionnaire Minimum: one parent and one sibling None
Mother's employment One-page questionnaire Paid work yes/no 3626
Indicators for socialisation
Cultural background parents One-page questionnaire Both western Heterogeneous Both non-western 10301
Parents' employment in the health care sector One-page questionnaire All levels of employment in the health care sector: yes/no None
Attitude towards management of minor ailments Health interview Sumscore on Nijmegen Expectation Questionnaire, range 12–60 2 899
Trust in general practitioners' care Health interview One-item question asking for a mark; range 1–10 2608
Self-care activities Health interview Conducting self-care in case of minor ailments: yes/no 106