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Table 1 Univariate analysis of trace elements and HPV infection in Uyghur women in China

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

Trace Elements HPV (−) (N = 282) HPV (+) (N = 551)   P
n/% n/% χ2
Ni (mg/kg)    56.905 < 0.001
 Q1 (0.0212~) 70/24.82 282/51.18   
 Q2 (0.1232~) 71/25.18 112/20.33   
 Q3 (0.1892~) 70/24.82 81/14.70   
 Q4 (0.2908~) 71/25.18 76/13.79   
Zn (μmol/L)    6.164 0.087
 Q1 (28.4286~) 70/24.82 185/33.58   
 Q2 (86.2117~) 71/25.18 120/21.78   
 Q3 (106.5923~) 70/24.82 114/20.69   
 Q4 (130.8978~) 71/25.18 132/23.95   
Fe (mmol/L)    2.449 0.485
 Q1 (0.4357~) 70/24.82 137/24.86   
 Q2 (5.5078~) 71/25.18 160/29.04   
 Q3 (7.3654~) 70/24.82 114/20.69   
 Q4 (9.1276~) 71/25.18 140/25.41   
Cu (μmol/L)    4.098 0.251
 Q1 (2.0900~) 70/24.82 114/20.69   
 Q2 (12.1317~) 71/25.18 125/22.69   
 Q3 (20.0032~) 70/24.82 168/30.49   
 Q4 (31.8041~) 71/25.18 144/26.13   
Mn (μmol/L)    5.396 0.145
 Q1 (0.0100~) 70/24.82 109/19.78   
 Q2 (0.1254~) 71/25.18 134/24.32   
 Q3 (0.4947~) 70/24.82 175/31.76   
 Q4 (0.9320~) 71/25.18 133/24.14   
Cd (μmol/L)    14.085 0.003
 Q1 (0.0025~) 70/24.82 175/31.76   
 Q2 (0.0248~) 71/25.18 109/19.78   
 Q3 (0.0371~) 70/24.82 172/31.22   
 Q4 (0.0571~) 71/25.18 95/17.24   
As (mg/kg)    11.301 0.001
 <0.02 146/51.77 218/39.56   
  ≥ 0.02 136/48.23 333/60.44   
Se (mg/kg)    19.236 0.000
 <0.02 117/41.49 317/57.53   
  ≥ 0.02 165/58.51 234/42.47