An observational study in Neoplasms, sponsored by Icelandic Heart Association. Completed. Open to participants aged 66 Years to 98 Years. Per ClinicalTrials.gov, last updated 2017-09-01.
Sponsored by Icelandic Heart Association · Observational
5764 men and women in Iceland, aged 66 to 96 years entered the Ages Gene/Environment Susceptibility (AGES) - Reykjavik Study. Serum 25(OH)D was measured in 5,519 of all 5,764 (96%) participants at study entry in year 2002 through 2006. The main emphasis was on exploring whether pre-diagnostic serum levels of 25(OH)D were associated with survival after cancer diagnosis.
In 1967, all 30,795 men and women living in the capital area of Iceland and born between 1907 and 1935 were invited by the Icelandic Heart Association to join a prospective cohort study. Approximately 19,000 attended the clinic at least once and became participants of the Reykjavik Study. Subsequently, in 2002, a random sample of the cohort comprising 5,764 men and women who were still alive in Iceland and aged 66 to 96 years entered the Ages Gene/Environment Susceptibility (AGES) - Reykjavik Study
Exclusion Criteria:
Exploring whether pre-diagnostic serum levels of 25(OH)D among older individuals living in Iceland were associated with survival after cancer diagnosis. We also assessed the risk of being diagnosed with cancer in association with 25(OH)D levels.
Overall survival
The association between pre-diagnostic 25(OH)D levels in cancer patients and overall survival
Time frame: From date of diagnosis until death or censored at end of the follow-up (December 31, 2014)
Cancer survival
The association between pre-diagnostic 25(OH)D levels in cancer patients and cancer survival
Time frame: From date of diagnosis until cancer death or censored at the end of the follow-up (December 31, 2014)
Cancer diagnosis
The association between pre-diagnostic 25(OH)D levels and cancer risk
Time frame: From date of blood draw (study entry) until cancer diagnosis, death or end of the observation period (December 31, 2014) whichever occurred first
No study locations are listed for this record.
Plan to share: Undecided
This study is completed, as verified in Aug 2017. You cannot join it, but the record below documents what was studied.
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Icelandic Heart Association