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Table 3 Multiple linear regression analyses: significant determinants of biomarkers among study participants by age group, Ath, Belgium, 2009

From: Human biomonitoring of heavy metals in the vicinity of non-ferrous metal plants in Ath, Belgium

Dependent variable Independent variable Partial r2 β estimate p-value
Children aged 2.5 to 6 years
 Blood lead, μg/l Geographical area 0.40 −0.092 0.05
Children aged 7 to 11 years
 Blood lead, μg/l Housing age 0.129 −0.141 0.005
  BMI 0.081 −0.020 0.016
 Urinary cadmium, μg/g cr BMI 0.159 −0.038 0.002
 Urinary RBP, μg/g cr Urinary cadmium 0.241 0.491 <0.001
Adults (40-60 years)
 Blood lead, μg/l Sex 0.115 −0.158 0.001
  Alcohol consumption 0.072 0.010 0.027
  Age 0.057 0.010 0.020
  BMI 0.038 −0.010 0.033
 Blood cadmium, μg/l Smoking status 0.304 0.388 0.001
  Ferritine 0.046 −0.120 0.008
  Age 0.030 0.011 0.005
 Urinary cadmium, μg/g cr Age 0.211 0.022 0.001
  Smoking status 0.056 0.219 0.016
  1. cr creatinine, BMI body mass index, RBP retinol-binding protein