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Table 1 Population characteristics of the follow-up study on Balkan Endemic Nephropathy

From: Offspring of parents with Balkan Endemic Nephropathy have higher C-reactive protein levels suggestive of inflammatory processes: a longitudinal study

   Investigation in 2005–2006 Investigation in 2006–2007
   Offspring of BEN cases Offspring of control patients Offspring of BEN cases Offspring of control patients
   n = 106
%
n = 94
%
n = 101
%
n = 92
%
Parental history of BEN Both 30.2 0 30.7 0
  Mother only 32.1 0 32.7 0
  Father only 37.4 0 36.6 0
  none 0 100 0 100
Gender male 47.2 46.8 47.5 46.7
Age (years) ≤ 40 11.3 21.3 8.9 19.6
  40–50 35.9 34.0 35.6 34.8
  > 50–60 34.0 29.8 34.7 30.4
  60 & older 18.9 14.9 20.8 15.2
Smoking in the last 12 mths   37.5 38.3 35.6 35.9
Ex-smoking   21.6 10.4 16.8 13.4
History of: pyelonephritis   8.5 2.1 8.9 2.2
kidney stones   9.4 6.4 11.9 5.4
cystitis   5.7 6.4 5.9 6.5
other kidney diseases   3.8 2.1 5.9 2.2
Diabetes mellitus   2.8 7.5 5.9 8.7
Report of application of the following medications: Anti-diabetics   0.9 2.1 2.0 2.2
Beta-blockers   8.5 1.1 7.0 2.2
Steroid hormones   6.0 0 0 2.2
   Median (5 – 98% value)
Age (years) 51 (38–65) 48 (34–65) 52 (39–65) 49 (34–66)
Body-mass index (kg/m2) 28.0 (19.5–35.7) 26.3 (21.4–33) 28.5 (19.8–35.0) 27.2 (21.5–34.3)