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Table 2 Univarite modeling of the association between end-stage renal disease and candidate risk factors

From: End-stage renal disease and low level exposure to lead, cadmium and mercury; a population-based, prospective nested case-referent study in Sweden

Variable Number of individuals OR 95% CI IQR ORIQR 95% CI
Ery-Cd (μg/L) 465 1.17 (0.99, 1.38) 0.37-1.3 1.15 (0.99, 1.34)
Ery-Pb (μg/L) 465 1.010 (1.004, 1.016) 39.8-83.5 1.54 (1.18, 2.00)
Ery-Hg (μg/L) 330 0.86 (0.74, 0.996) 1.53-3.5 0.75 (0.56, 0.99)
BMI (kg/m2) 451 1.05 (0.99, 1.11) 23.5-28.1 1.24 (0.97, 1.60)
Diabetes (y/n) 381 13.1 (4.46, 38.7)    
Hypertensiona (y/n) 344 1.58 (0.90, 2.76)    
Smoking 442      
Never-smoker 172 1     
Not current smoker (undefined ex-smoker or never-smoker) 49 1.29 (0.33, 5.10)    
Ex-smoker 101 1.53 (0.83, 2.82)    
Current smoker 120 2.15 (1.16, 3.98)    
  1. Detailed legend: Univariate modeling of associations between end-stage renal disease and erythrocyte metal concentrations, body mass index (BMI), diabetes, hypertension and smoking at baseline. For continuous variables, ORs are given for both unit increase and for an interquartile range increase.
  2. OR=odds ratio per unit increase. CI=confidence interval. IQR= interquartile range. ORIQR=odds ratio for an interquartile range increase. BMI=Body Mass Index.
  3. aHypertension was defined as SBP >140 or DBP > 90 mm Hg, or antihypertensive medication at baseline.