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Table 1 Age of women in the study, according to case or control status

From: Tumour suppressor gene methylation and cervical cell folate concentration are determinants of high-risk human papillomavirus persistence: a nested case control study

  Cases Controls
  n age [y] n age [y]
Total cohort 482 30.05 ± 8.92 473 31.56 ± 9.49
Folate cohort 283 30.51 ± 9.46 273 30.10 ± 8.46
Methylation cohort 199 29.39 ± 8.08 200 33.56 ± 10.43
  1. Values are presented as means ± SD, for women in the total cohort, and the folate and methylation sub-groups, according to case or control status.