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Table 2 Characteristics of the study population

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

  Lowering-effect families Average families Raising-effect families
Individual level Parents (n = 2508) Siblings (n = 3316) Parents (n = 66863) Siblings (n = 71114) Parents (n = 8356) Siblings (n = 8769)
Mean age (sd; range) 40.5 (6.9; 21–65) 10.5 (5.2; 2–21) 40.4 (7.0; 21–65) 10.5 (5.3; 2–21) 39.4 (7.1; 21–65) 10.3 (5.5; 2–21)
Mean frequency of contact (max) 0.1 (3) 0.1(3) 1.2(9) 0.9(10) 3.5(33) 2.8(17)
% individuals with zero contacts in registration year 88.2 91.4 40.2 48.3 8.2 10.7
% respondents reporting moderate to bad health status1 9.1 2.7 12.7 3.8 21.4 6.7
  Lowering-effect families Average families Raising-effect families
Family level n = 1247 families (2.9%) n = 36 641 families (86.4%) n = 4509 families (10.6%)
Mean number of years listed in current practice 12.8 13.5 13.2
% one parent families 7.9* 20.9 19.1
Mean number of siblings 3* 2 2
% privately insured 58.4* 46.7 34
% one/both parents non-western cultural background 8.7* 9.7 16.1
% families mothers high educational level 28* 22.5 13
% families mother paid employment 32* 43.4 37.1
% families mothers working in health care sector 12.7* 10.1 7.3
% families fathers working in health care sector 5.9* 2.2 1.2
  1. 1 respondents > = 12 yrs
  2. * differences between lowering-effect and raising-effect families are significant at p < 0.05