תזונה ותוספים Low-carbohydrate diets and all-cause and cause-specific mortality: two cohort studies

[Mike Bikov]

Ann Intern Med. 2010 Sep 7;153(5):289-98.
Low-carbohydrate diets and all-cause and cause-specific mortality: two cohort studies.

Fung TT, van Dam RM, Hankinson SE, Stampfer M, Willett WC, Hu FB.

Harvard School of Public Health, Boston, Massachusetts 02115, USA. [email protected]

Comment in:

* Ann Intern Med. 2010 Sep 7;153(5):337-9.

Abstract

BACKGROUND: Data on the long-term association between low-carbohydrate diets and mortality are sparse.

OBJECTIVE: To examine the association of low-carbohydrate diets with mortality during 26 years of follow-up in women and 20 years in men.

DESIGN: Prospective cohort study of women and men who were followed from 1980 (women) or 1986 (men) until 2006. Low-carbohydrate diets, either animal-based (emphasizing animal sources of fat and protein) or vegetable-based (emphasizing vegetable sources of fat and protein), were computed from several validated food-frequency questionnaires assessed during follow-up.

SETTING: Nurses' Health Study and Health Professionals' Follow-up Study.

PARTICIPANTS: 85 168 women (aged 34 to 59 years at baseline) and 44 548 men (aged 40 to 75 years at baseline) without heart disease, cancer, or diabetes.

MEASUREMENTS: Investigators documented 12 555 deaths (2458 cardiovascular-related and 5780 cancer-related) in women and 8678 deaths (2746 cardiovascular-related and 2960 cancer-related) in men.

RESULTS: The overall low-carbohydrate score was associated with a modest increase in overall mortality in a pooled analysis (hazard ratio

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comparing extreme deciles, 1.12 [95% CI, 1.01 to 1.24]; P for trend = 0.136). The animal low-carbohydrate score was associated with higher all-cause mortality (pooled HR comparing extreme deciles, 1.23 [CI, 1.11 to 1.37]; P for trend = 0.051), cardiovascular mortality (corresponding HR, 1.14 [CI, 1.01 to 1.29]; P for trend = 0.029), and cancer mortality (corresponding HR, 1.28 [CI, 1.02 to 1.60]; P for trend = 0.089). In contrast, a higher vegetable low-carbohydrate score was associated with lower all-cause mortality (HR, 0.80 [CI, 0.75 to 0.85]; P for trend </= 0.001) and cardiovascular mortality (HR, 0.77 [CI, 0.68 to 0.87]; P for trend < 0.001).

LIMITATIONS: Diet and lifestyle characteristics were assessed with some degree of error. Sensitivity analyses indicated that results were probably not substantively affected by residual confounding or an unmeasured confounder. Participants were not a representative sample of the U.S. population.

CONCLUSION: A low-carbohydrate diet based on animal sources was associated with higher all-cause mortality in both men and women, whereas a vegetable-based low-carbohydrate diet was associated with lower all-cause and cardiovascular disease mortality rates.​

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🥷🥷

 

[bentzurm]

נתקלתי בכמה מאמרי ביקורת בבלוגים שאני קורא, אז אני יצרף אותם פה למי שרוצה לקרוא. כדאי לקרוא אותם בהקשר לכמה ויכוחים שהיו פה לאחרונה על חשיבותם וערכם של מחקרים אפידימיולגים.
הציטוט האהוב עלי הוא: "Whoever decided to call this study “low carbohydrate” is nuttier than a squirrel turd."

http://rawfoodsos.com/2010/09/08/brand-spankin-new-study-are-low-carb-meat-eaters-in-trouble/
http://blog.cholesterol-and-health.com/2010/09/new-study-shows-that-lying-about-your.html

 

[Rhastago]

לייק לבנצורם

 

[Mike Bikov]

דניס הזו חולת נפש הא

 

[Sugarzaza]

דניס הזו חולת נפש הא

משה תן בה.

 

[bentzurm]

דניס הזו חולת נפש הא

אני מעריץ שלה. 😍

 

[Sugarzaza]

אני מעריץ שלה. 😍

Birthday:May 4, 1987

פדופיל...

​

 

[Rhastago]

-- 😃

 

[Mike Bikov]

משה תן בה.

I currently live in Portland, Oregon and work as a freelance writer, teacher, and web designer

היא גרה בסוף העולם

 

[EMZ]

משה, סדר לי אותה. אחלה מועמדת לנישואי אזרחות שלי. לא אכפת לי לגור בפורטלנד.

 

[Mike Bikov]

היא אנורקסית

 

[EMZ]

אני אוהב אנורקסיות.

 

[Mike Bikov]

אתה אוהב גרין קארד לא אנורקסיות

 

[EMZ]

זה נכון.
אבל אם נשים את קרין קארד בצד,
אני באמת אוהב אנורקסיות. תצחקו, פאק. מה לעשות.

 

[MOONLight]

על טעם וריח ....

 

[EMZ]

המתנדבים למחקר קיבלו כסף במשך 26 שנה?
בואנה זה אחלה עבודה.

 

[Mike Bikov]

אני חושב שזה פר מפגש של בדיקות/שאלון.

 

[EMZ]

אני מניח שהיו לא מעט כאלו. חבל שאצלנו אין דבר כזה.