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Table 2 The distribution of the sample size by province, Belgian health interview survey 2008

From: Methodological basics and evolution of the Belgian health interview survey 1997–2008

  (A) (B) (C) (D) (E) (F = (D/A) * 103)
Province Population* Fraction (%) Theoretical number of individuals to be interviewed Effective number of individuals to be interviewed (multiple of 50) Number of Groups of 50 individuals The probability for an individual to be selected
Antwerp 1,700,570 27.7 1098.05 1100 22 0.65
Limburg 820,272 13.2 529.65 550 11 0.67
Flemish Brabant 1,052,467 17 679.57 650 13 0.62
East Flanders 1,398,253 23 902.84 900 18 0.64
West Flanders 1,145,878 19.1 739.89 750 15 0.65
Total Flemish Region 6,117,440 100 3950 3950 79 0.65
Hainaut 1,294,844 39.6 1488.6 1500 30 1.16
Walloon Brabant 370,460 10.5 425.89 400 8 1.08
Namur 461,983 13.4 531.11 550 11 1.19
Liège (including GC) 1,047,414 29.1 1204.14 1200 24  
Liège (exluding GC) 973,739    900 18 0.92
German Community 73,675    300 6 4.07
Luxembourg 261,178 7.6 300.26 300 6 1.15
Total Walloon Region 3,435,879 100 3950 3950 79 1.15
Brussels-Capital Region 1,031,215 100 3350 3350 67 3.25
Total Belgium 10,584,534 100 11250 11250 225 1.06
  1. (C) = (3950 * (B))/100 within the Flemish region; (C) = (3950* (B))/100 within the Walloon Region.
  2. Source: Statistics Belgium (population 01.01.2007).