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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