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Table 4 Frequency of HPV infection by characteristics of controls

From: Case–control study of HLA-G promoter methylation status, HPV infection and cervical neoplasia in Curitiba, Brazil: a pilot analysis

  CONTROLS
  N = 510
  HPV+/N %
Age (years)   
<25 36/101 35.64
25-34 40/201 19.90
35-44 22/187 11.76
≥45 < 25 2/21 9.52
Education level   
Elementary school 57/261 21.84
Middle school 27/159 16.98
High school 2/18 11.11
Ethnic group   
Euro-Descendent 39/239 16.32
Afro-Descendent 4/24 16.67
Brazilian Mixed* 47/180 26.11
Asian 0/1 0
Lifetime number of sexual partners   
1 16/156 10.26
2-10 62/275 22.55
>10 22/79 27.85
Smoking status   
Never smoker 45/277 16.25
Former smoker 36/148 24.32
Current smoker 19/81 23.46
  1. *Brazilian Mixed: Mixed ethnicity with Euro-Descendent, Afro-Descendent, Amerindian and East Asian.