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# Type 2 diabetes mellitus boosts death risk of lung cancer
- URL: https://www.foodconsumer.org/type_2_diabetes_mellitus_boosts_lung_cancer_0516141111/
- Published: 2014-05-16T12:11:00.000Z
- Updated: 2026-09-22T16:21:36.000Z
- Description: Among 1,978 lung cancer patients studied at the University of Tsukuba, those with small cell lung cancer and HbA1c above 8% were more likely to die than diabetic patients with lower levels. No link appeared between HbA1c and non-small cell lung cancer deaths.
- Author: Food Consumer
- Tags: Disease, Health News, #vivvo-import

Friday May 16, 2014 (foodconsumer.org) -- A new study reveals that lung cancer patients also with type 2 diabetes mellitus or high HbA1c levels are more likely to die than those lung cancer patients without diabetes. Type 2 diabetes mellitus has been associated with poor prognosis of some chronic diseases in previous studies.

K. Nakazawa and colleagues in Institute of Clinical Medicine University of Tsukuba and colleagues conducted the study and found among patients with small cell lung cancer, those with HbA1c greater than 8% were more likely to die, compared with those type 2 diabetes mellitus patients with lower or normal levels of HbA1c.

However, the study found no association between the HbA1c level and risk of death from non-small cell lung cancer. That is, having type 2 diabetes mellitus does not have an impact on the prognosis of non-small cell lung cancer.

The study involved a total of 1,978 patients with lung cancer who were classified into three groups based on the HbA1c level, 89 patients with HbA1c greater than 8.0%, 255 with HbA1c lower than 8% and 1,597 without type 2 diabetes mellitus, that is, having normal levels of HbA1c.

HbA1c is glycated hemoglobin which is also known as hemoglobin A1c, HbA1c, A1C, or Hb1c. Hemoglobin can react with glucose (blood sugar) and high levels of glucose found in patients with type 2 diabetes mellitus lead to the formation of high levels of glycated gemoglobin. HbA1c which can be determined using a lab test indicates the average level of blood sugar over a period of three months. HbA1c is considered more reliable than the test for the fasting plasma glucose level. Both tests are used to diagnose or determine the condition of type 2 diabetes mellitus.

The study was published on the website of ATSJournals online. (David Liu)

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