Vape.ch Switzerland Guide
Study on smoking, type 2 diabetes and cardiovascular risk
A factual summary of a Swedish observational study and its limitations.
Type 2 diabetes Smoking Cardiovascular risk Observational study Medical context

In brief
The study examined cigarette smoking in people with type 2 diabetes.
It was not a general assessment of nicotine and not a controlled study of e-cigarettes.
The findings are not reassurance for smoking, vaping or nicotine use.
Medical note
This article does not replace medical advice. People with diabetes, cardiovascular disease or other health conditions should discuss smoking, nicotine or e-cigarettes with qualified medical professionals.
A Swedish study examined the relationship between cigarette smoking, type 2 diabetes and major cardiovascular events. The findings are interesting, but they should not be simplified incorrectly.
The study does not prove that nicotine is harmless for people with diabetes, and it is not a recommendation for smoking, vaping or nicotine use.
What was studied?
The study analysed patients with type 2 diabetes in a Swedish cohort. It examined whether cigarette smoking was associated with major adverse cardiovascular events, often referred to as MACE.
The key point is that this was a study about cigarette smoking in people with type 2 diabetes. It was not a controlled study of e-cigarettes and not a general assessment of nicotine use in diabetes.
What was examined
Cigarette smoking in patients with type 2 diabetes.
What was not examined
A controlled assessment of e-cigarettes or nicotine use in general.
Important context
Observational studies show associations, but they do not replace individual medical assessment.
What did the study show?
In this relatively well-treated cohort, the study did not find a statistically significant association between smoking and major cardiovascular events.
At the same time, smoking was associated with higher all-cause mortality.
Correct interpretation
Smoking was not significantly associated with MACE in this study, but it was associated with higher all-cause mortality. This is not reassurance for smoking or nicotine use.
Why the old headline is problematic
A statement such as “diabetes patients who consume nicotine do not have higher cardiovascular risk” is too strong.
The study examined cigarette smoking, not nicotine in general. It also focused on specific cardiovascular events, not all health risks. In addition, smoking was associated with higher overall mortality.
Do not generalise: the study examined cigarette smoking, not nicotine products in general.
Do not oversimplify: MACE does not cover every cardiovascular or health risk.
Do not treat it as reassurance: higher all-cause mortality remains important for interpretation.
For Vape.ch, the wording must therefore remain careful and factual. This article explains the study but does not draw medical conclusions for people with diabetes.
What does this mean for e-cigarettes?
This study does not allow direct conclusions about e-cigarettes. E-cigarettes do not burn tobacco, but they may contain nicotine.
For people with diabetes or cardiovascular risk, questions about nicotine, smoking or vaping should be discussed individually with medical professionals.
Conclusion
The Swedish study is interesting, but it should not be understood as simple reassurance. It examined cigarette smoking in type 2 diabetes and did not find a significant association with major cardiovascular events, but it did find higher all-cause mortality among smokers.
Medical advice remains essential for people with diabetes, especially when smoking, nicotine or e-cigarettes are involved.
Frequently asked questions
Does the study show that nicotine is harmless in diabetes?
No. The study examined cigarette smoking in type 2 diabetes, not nicotine in general and not e-cigarettes.
Was there no risk in the study?
The study found no significant association with major cardiovascular events, but smoking was associated with higher all-cause mortality.
Should people with diabetes vape?
This should be discussed individually with medical professionals. This article does not provide medical advice.
Sources and further information
Researcher profile: Fredrik Nyström, Linköping University.

