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Table 1 Characteristics of the high and low CAFO density regions and characteristics of the general practitioners’ patients populations, 2009

From: Doctor-diagnosed health problems in a region with a high density of concentrated animal feeding operations: a cross-sectional study

  High CAFO density region Low CAFO density regions
Characteristics of the regions
No. of postal code areas 171 785
No. of CAFOs a 129 10
 Swine 85 2
 Poultry 28 1
 Cattle 10 7
 Goat 6 0
No. of general practices 28 22
No. of general practitioners 66 32
Characteristics of the populations
Total No. of patients b 119,036 78,060
Gender (females); n (%) 58,952 (49.5) 38,983 (49.9)
Age (yrs); mean ± SD 40 ± 23 39 ± 23
No. of patients aged 0–14 yrs; n (%) 21,509 (18.1) 14,805 (19.0)
No. of patients aged ≥65 yrs; n (%) 18,318 (15.4) 11,880 (15.2)
Standardized household income x € 1000 c; mean ± SD 24.6 ± 15.5 24.3 ± 15.6
  1. Note. CAFO concentrated animal feeding operation, SD standard deviation
  2. aData from GIAB (GIAB 2009, Alterra Wageningen UR, the Netherlands)
  3. bAll enlisted patients in the year 2009
  4. cCalculations made by NIVEL using custom-made microdatasets from Statistics Netherlands concerning NIVEL project 7093