- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01817231
Epidemiological Analysis of Vitamin D and Breast Cancer Risk in Saudi Arabian Women
Vitamin D Status and Breast Cancer in Saudi Arabian Women: Case Control Study
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
Background: The role of vitamin D in breast cancer prevention is equivocal. Saudi Arabian women are thought to be at greater risk for vitamin D deficiency due to darker skin type and greater likelihood for reduced UVB radiation exposure. However, there is a lack of data regarding the vitamin D status of Saudi Arabian women and how this may relate to breast cancer risk.
Objective: The purpose of this research was to evaluate the association between circulating concentrations of 25(OH)D and breast cancer risk in Saudi Arabian women.
Design: A case-control study was conducted among 120 breast cancer cases and 120 controls. The study population was drawn from patients admitted to King Fahd Hospital in Jeddah, Saudi Arabia from June to August 2009. Participants completed questionnaires on diet and medical history and serum samples were collected from all women to measure circulating 25(OH)D concentrations.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
-
-
Arizona
-
Tucson, Arizona, Forenede Stater, 85721
- University of Arizona
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Invasive breast cancer (cases) or healthy women (controls),
- receiving standard medical check-ups at the women's clinic
- Female,
- between the ages of 18 and 75 years
- BMI ≤ 40 kg/m2
- residence in Saudi Arabia for more than 5 years
- absence of chronic diseases that could affect vitamin D metabolism, including renal, hepatic, endocrine, or autoimmune disease.
Exclusion Criteria:
receiving standard medical check-ups at the women's clinic
- Male,
- less than 18 or greater than 75 years of age
- BMI > 40 kg/m2
- Not a resident of Saudi Arabia for more than 5 years
- Presence of chronic diseases that could affect vitamin D metabolism, including renal, hepatic, endocrine, or autoimmune disease.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
---|
breast cancer cases
breast cancer cases versus controls
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
serum vitamin D
Tidsramme: cross-sectional from May 2009-August 2009
|
assessed serum vitamin D in cases versus controls
|
cross-sectional from May 2009-August 2009
|
Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Studiestol: Cynthia A Thomson, PhD, University of Arizona
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- SAVitaminD
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