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Table 3 Univariate analysis of trace elements and CIN2+ in Uyghur women

From: Serum Se, Ni, and As are associated with HPV infection and CIN2+ among Uyghur women in rural China

Trace Element CIN < 2(N = 683) CIN2+ (N = 150) P
n (%) n (%) χ2
Ni (mg/kg)   47.795 <0.001
 Q1 (0.0212~) 170/24.89 78/52.00  
 Q2 (0.0965~) 171/25.04 32/21.33  
 Q3 (0.1584~) 171/25.04 14/9.33  
 Q4 (0.2364~) 171/25.04 26/17.33  
Zn (μmol/L)   7.137 0.068
 Q1 (26.4286~) 170/24.89 51/34.00  
 Q2 (80.7867~) 171/25.04 39/26.00  
 Q3 (105.5670~) 171/25.04 21/14.00  
 Q4 (130.4932~) 171/25.04 39/26.00  
Fe (mmol/L)   30.411 <0.001
 Q1 (0.4357~) 170/24.89 12/8.00  
 Q2 (5.1895~) 171/25.04 28/18.67  
 Q3 (6.9153~) 171/25.04 55/36.67  
 Q4 (8.9919~) 171/25.04 55/36.67  
Cu (μmol/L)   4.682 0.328
 Q1 (2.0900~) 170/24.89 21/14.00  
 Q2 (12.2423~) 171/25.04 35/23.33  
 Q3 (21.3933~) 171/25.04 55/36.67  
 Q4 (31.8862~) 171/25.04 39/26.00  
Mn (μmol/L)   5.579 0.134
 Q1 (0.0100~) 64/24.8 48/32.00  
 Q2 (0.2093~) 65/25.2 32/21.33  
 Q3 (0.5493~) 65/25.2 42/28.00  
 Q4 (0.9396~) 64/24.8 28/18.67  
Cd (μmol/L)   7.040 0.071
 Q1 (0.0025~) 170/24.89 42/28.00  
 Q2 (0.0224~) 171/25.04 28/18.67  
 Q3 (0.0359~) 171/25.04 50/33.33  
 Q4 (0.0543~) 171/25.04 30/20.0  
As (mg/kg)   48.707 <0.001
 <0.02 341/49.93 28/18.67  
  ≥ 0.02 342/50.07 122/81.33  
Se (mg/kg)   80.567 <0.001
 <0.02 302/44.22 127/84.67  
  ≥ 0.02 381/55.78 23/15.33