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Table 1 General characteristics of exposed group and non-exposed group

From: Levels of blood lead and urinary cadmium in industrial complex residents in Ulsan

  Non-exposure Exposure p value
Gender Men 43 130 0.829
Women 66 190
Mean age (AM) 48.08 ± 17.17 51.41 ± 16.32 0.070
Age group 20–29 19 42 0.483
30–39 17 35
40–49 23 62
50–59 17 66
60–69 20 68
Over 70 13 47
Body Mass Index Non-obese 79 227 0.759
Obese 30 93
Smoking status Non-smoker 73 227 0.436
Smoker 36 93
Drinking status Non-drinker 74 202 0.370
Drinker 35 118
Educational status High school and less 49 214 <0.001*
College and more 60 106
Distance to road Above 100 m 59 143 0.098
Under 100 m 50 175
  1. unit: arithmetic mean ± standard deviation
  2. AM arithmetric mean
  3. * p < 0.05