Vitamin D and cancer incidence--letter.

  title={Vitamin D and cancer incidence--letter.},
  author={Robert E Weir and Carmia G Borek},
  journal={Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology},
  volume={23 9},
We were interested to read Skaaby and colleagues’ article (1) concerning the "prospective association between vitamin D. . ...and specific types of cancer." Although the study cohort numbers are impressive and sufficient for randomization of studied data outcomes, many cancer-specific risk factors are not examined. An individual family history of cancer can often be a strong risk factor for cancer development and should have been included in analysis. Studies of this nature have been criticized… CONTINUE READING