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Thursday, March 21, 2013

Low LDL cholesterol levels are associated with an elevated risk of death from liver cancer

This study was published in the Tohoku Journal of Experimental Medicine 2013;229(3):203-11
 
Study title and authors:
Low Serum LDL Cholesterol Levels Are Associated with Elevated Mortality from Liver Cancer in Japan: the Ibaraki Prefectural Health Study.
Saito N, Sairenchi T, Irie F, Iso H, Iimura K, Watanabe H, Muto T, Ota H.
Department of Public Health, Dokkyo Medical University School of Medicine.
 
This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/23445767

The aim of this study was to examine the relationship between low-density lipoprotein (LDL) cholesterol levels and liver cancer death rates. The study included a total of 16,217 persons (5,551 men and 10,666 women), aged 40-79 years, who were followed for 15 years. The participants were divided into four categories of LDL cholesterol levels.
(i) Less than 80 mg/dL (2.06 mmol/L).
(ii) 80-99 mg/dL (2.06-2.56 mmol/L).
(iii) 100-119 mg/dL (2.57-3.07 mmol/L).
(iv) More than 120 mg/dL (3.1 mmol/L).

The study found:
(a) Those with LDL cholesterol levels below 80 mg/dL (2.06 mmol/L) had a 333% increased risk of death from liver cancer compared to those with LDL cholesterol levels of 100-119 mg/dL (2.57-3.07 mmol/L).
(b) Those with LDL cholesterol levels of 80-99 mg/dL (2.06-2.56 mmol/L) had a 3% increased risk of death from liver cancer compared to those with LDL cholesterol levels of 100-119 mg/dL (2.57-3.07 mmol/L).
(c) Those with LDL cholesterol levels above 120 mg/dL (3.1 mmol/L) had a 57% REDUCED risk of death from liver cancer compared to those with LDL cholesterol levels of 100-119 mg/dL (2.57-3.07 mmol/L).

The researchers conclude: "Low LDL cholesterol levels are associated with elevated risk of liver cancer mortality".

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