Agreed, reports like this should always cite the original paper.
http://archinte.jamanetwork.com/article.aspx?articleid=2530902 is the JAMA Internal Medicine article. Signing up for a free account doesn't give one access to it - on has to buy it. :-(
Health Professionals Follow-up Study FAQ:
FWIW.
Cheers,
Scott.
http://archinte.jamanetwork.com/article.aspx?articleid=2530902 is the JAMA Internal Medicine article. Signing up for a free account doesn't give one access to it - on has to buy it. :-(
Objective To examine the associations of specific dietary fats with total and cause-specific mortality in 2 large ongoing cohort studies.
Design, Setting, and Participants This cohort study investigated 83 349 women from the Nurses’ Health Study (July 1, 1980, to June 30, 2012) and 42 884 men from the Health Professionals Follow-up Study (February 1, 1986, to January 31, 2012) who were free of cardiovascular disease, cancer, and types 1 and 2 diabetes at baseline. Dietary fat intake was assessed at baseline and updated every 2 to 4 years.
Information on mortality was obtained from systematic searches of the vital records of states and the National Death Index, supplemented by reports from family members or postal authorities. Data were analyzed from September 18, 2014, to March 27, 2016.
Main Outcomes and Measures Total and cause-specific mortality.
Results During 3 439 954 person-years of follow-up, 33 304 deaths were documented. After adjustment for known and suspected risk factors, dietary total fat compared with total carbohydrates was inversely associated with total mortality (hazard ratio [HR] comparing extreme quintiles, 0.84; 95% CI, 0.81-0.88; P Conclusions and Relevance Different types of dietary fats have divergent associations with total and cause-specific mortality. These findings support current dietary recommendations to replace saturated fat and trans-fat with unsaturated fats.
Health Professionals Follow-up Study FAQ:
Q. What kinds of questions are on the questionnaires?
A. The questionnaires include items about medical conditions, medications, tobacco use, and exercise. In addition, every four years a food frequency questionnaire is administered to collect detailed information about amounts and types of foods and beverages consumed.
Q. How do you know that the questionnaires are eliciting accurate information?
A. The validity of self-reported information has been tested several times by comparing subject reports against actual measurements. The evidence indicates that the data gathered in the Health Professionals Follow-Up Study has a high degree of validity. (See publication lists for studies of questionnaire validity.)
FWIW.
Cheers,
Scott.