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Table 3 Age (mean ± SD), smoking status (number and % in parenthesis), and blood lead (BPb) concentrations (median) of 112 participants

From: A methodological consideration for blood lead concentrations obtained from the earlobe in Japanese adults occupationally unexposed to lead

  62 males 50 females p valuea
Age at examination (years) 34 ± 13 31 ± 11 0.183
Smokers + ex-smokers (%) 17 (27.4) 6 (12.0) 0.060
Earlobe BPb level (μg/dL) 0.99 0.73 < 0.001
Cubital vein BPb level (μg/dL) 0.93 0.74 < 0.001
  1. aStudent t test, Fisher exact test, and Mann-Whitney U test were done for age, smoking status, and BPb concentrations, respectively