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Table 2 Comparison of UCd concentrations and prevalence of UCd in population with different demographic characteristics

From: An assessment of sensitivity biomarkers for urinary cadmium burden

Characteristics No. Mean (GSD) P50(P25 ~ 75) P95 Abnormal number X2 P
      [Percentage(%)]   
Gender       0.302 <0.05
Male 587 4.483(3.786) 5.751(2.463 ~ 8.077) 12.263 328(55.88)   
Female 1008 4.522(3.896) 5.700(3.542 ~ 8.156) 13.520 530(52.58)   
Age       747.000 <0.001
50~ 589 4.401(3.657) 5.576(2.471 ~ 7.935) 12.105 302(51.27)   
60~ 687 4.494(3.833) 5.775(3.544 ~ 8.230) 12.399 367(53.42)   
70~ 257 4.671(4.127) 5.803(3.585 ~ 8.213) 14.937 143(55.64)   
80~ 62 5.038(4.558) 6.009(2.412 ~ 9.830) 17.398 35(56.45)   
  1. The units of the above indicators: Abnormal number (person), UCd (μg / g cr), GSD (Geometric Standard Deviation). 5 μg / g cr is the criterion for determining abnormality of UCd
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