SERVICES

Close-up TV News - Prolotheray lecture

Reversing Hypertension

Heavy Metals and all diseases

Close-Up TV News - Dr. Calapai's approach

News 12 Interview: Parkinson’s Disease, Glutathione and Chelation Therapy

News 12 Interview: Platelet-rich plasma therapy

Prolotherapy Interview News 12

News 12 Interview: Diabetes and Weight Loss
Predicted vitamin D status and pancreatic cancer risk in two prospective cohort studies

Background:

Studies evaluating vitamin D status in relation to pancreatic cancer risk have yielded inconsistent results.

Methods:

We prospectively followed 118 597 participants in the Nurses’ Health Study and Health Professionals Follow-up Study from 1986 to 2006. We calculated a 25-hydroxyvitamin D (25(OH)D) score from known predictors of vitamin D status for each individual and then examined the predicted 25(OH)D levels in relation to pancreatic cancer risk. Relative risks (RRs) and 95% confidence intervals (95% CIs) were estimated using Cox proportional hazards models adjusted for age, sex, race, height, smoking, and diabetes. We then further adjusted for body mass index (BMI) and physical activity in a sensitivity analysis.

Results:

During 20 years of follow-up, we identified 575 incident pancreatic cancer cases. Higher 25(OH)D score was associated with a significant reduction in pancreatic cancer risk; compared with the lowest quintile, participants in the highest quintile of 25(OH)D score had an adjusted RR of 0.65 (95% CI=0.50–0.86; Ptrend=0.001). Results were similar when we further adjusted for BMI and physical activity.

Conclusions:

Higher 25(OH)D score was associated with a lower risk of pancreatic cancer in these two prospective cohort studies.

Published on 03-30-2013