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Written | nagashi editor | Wang Cong typesetting | Shuichengwen In modern society, with economic development and technological advancement, people's living standards have been greatly improved, and obesity rates are on the rise all over the world.
It is worth noting that obesity is also closely related to the occurrence and development of some diseases, including type 2 diabetes, cardiovascular disease and cancer.
In China, there are over 300 million people who are overweight and obese, and weight loss has become a hot topic after dinner.
At the same time, in recent years, due to the increase in average life expectancy, industrial pollution and ionizing radiation and other complex factors, the incidence of cancer in the world has also been increasing year by year.
In this regard, what is the relationship between obesity as an increasingly popular metabolic disease and the occurrence and development of cancer? In January 2021, researchers from the University of Barcelona in Spain published a study titled Body mass index and waist circumference in relation to the risk of 26 types of cancer: a prospective cohort study of 3.
5 million adults in Spain in the journal BMC Medicine.
paper.
This large study of 3.
5 million people showed that obese people with a higher body mass index (BMI) have an increased risk of 12 cancers, and among non-smokers, BMI is also positively correlated with the risk of blood cancer and head and neck cancer.
.
In addition, studies have confirmed that body mass index (BMI) and waist circumference (WC) are similar in assessing cancer risk associated with obesity.
In the past 30 years, the worldwide prevalence of obesity has nearly tripled and reached a staggering 650 million people in 2016.
Body mass index (BMI) is a commonly used international standard to measure the degree of body weight and health.
BMI = weight (Kg) divided by height squared (m2).
A BMI index greater than 25 means overweight, and a BMI index greater than 30 means obesity.
Previous studies have shown that it is related to at least 12 cancer types [2].
Not only that, more large cohort studies have shown that body mass index (BMI) is associated with more cancer types, and some of the correlations may be non-linear.
In addition, central fat, which is usually assessed using waist circumference (WC), has also been found to be associated with the risk of several cancer types.
Therefore, studying whether body mass index and waist circumference are related to the risk of many cancer types is a study worthy of discussion.
In this study, the research team conducted a large prospective cohort study based on population-based electronic health records in Catalonia, Spain.
Between 2006 and 2017, the researchers included 3,658,417 cancer-free adults, and analyzed and screened 26 different cancer types to determine their cause-specific risk ratios (HRs).
Research flow chart Subsequently, the researchers conducted an average of 8.
3 years of long-term follow-up of these participants, and more than 200,000 (202,837) participants were diagnosed with cancer.
Statistical analysis shows that a higher body mass index (BMI) is associated with 9 cancers, including: uterine cancer, kidney cancer, gallbladder cancer, thyroid cancer, colorectal cancer, postmenopausal breast cancer, multiple myeloma, leukemia, and non-Hodgkin Chikin's lymphoma.
Not only that, a higher body mass index (BMI) is also positively correlated with the risk of the other three cancers in non-smokers-head and neck cancer, central nervous system tumors, and Hodgkin's lymphoma.
The corresponding HRs range (in increments of 5 kg/m2) from 1.
04 (99% CI; 1.
01-1.
08) for non-Hodgkin’s lymphoma to 1.
49 (99% CI; 1.
45-1.
53) for uterine cancer. The relationship between body mass index (BMI) and the risk of 26 cancers in the overall population.
Interestingly, a low body mass index (BMI) may also increase the risk of certain cancer types.
Taking into account non-linear factors, BMI has a U-shaped relationship with prostate cancer, and an L-shaped relationship with head and neck cancer, esophageal cancer, laryngeal cancer, tracheal cancer, bronchial cancer, and lung cancer.
These phenomena indicate that low body mass index is equivalent to the risk of cancer caused by heavy smoking.
The relationship between the body mass index (BMI) of non-smokers and the risk of 10 cancers.
In addition, of the 291,305 participants who measured their waist circumference, 27,837 were diagnosed with cancer.
Research data shows that the correlation between body mass index (BMI) and waist circumference (WC) and cancer risk is highly overlapped in all cancers.
BMI and WC are comparable to the estimates of obesity-related cancer risk at the population level.
In summary, this study shows that the higher the body mass index (BMI), the higher the risk of 12 types of cancer.
The risk of 5 cancers related to smoking factors is reduced, and among people who have never smoked, a higher BMI will also increase the risk of blood cancer and head and neck cancer.
In addition, the study also proves that body mass index (BMI) and waist circumference (WC) are comparable to the estimates of obesity-related cancer risk at the population level.
It can be seen that obesity is closely related to the occurrence of many types of cancers, which suggests that obesity is not just a simple metabolic disease.
Perhaps the prevention of cancer starts with the prevention of obesity! Reference: https://doi.
org/10.
1186/s12916-020-01877-3 Open for reprint
It is worth noting that obesity is also closely related to the occurrence and development of some diseases, including type 2 diabetes, cardiovascular disease and cancer.
In China, there are over 300 million people who are overweight and obese, and weight loss has become a hot topic after dinner.
At the same time, in recent years, due to the increase in average life expectancy, industrial pollution and ionizing radiation and other complex factors, the incidence of cancer in the world has also been increasing year by year.
In this regard, what is the relationship between obesity as an increasingly popular metabolic disease and the occurrence and development of cancer? In January 2021, researchers from the University of Barcelona in Spain published a study titled Body mass index and waist circumference in relation to the risk of 26 types of cancer: a prospective cohort study of 3.
5 million adults in Spain in the journal BMC Medicine.
paper.
This large study of 3.
5 million people showed that obese people with a higher body mass index (BMI) have an increased risk of 12 cancers, and among non-smokers, BMI is also positively correlated with the risk of blood cancer and head and neck cancer.
.
In addition, studies have confirmed that body mass index (BMI) and waist circumference (WC) are similar in assessing cancer risk associated with obesity.
In the past 30 years, the worldwide prevalence of obesity has nearly tripled and reached a staggering 650 million people in 2016.
Body mass index (BMI) is a commonly used international standard to measure the degree of body weight and health.
BMI = weight (Kg) divided by height squared (m2).
A BMI index greater than 25 means overweight, and a BMI index greater than 30 means obesity.
Previous studies have shown that it is related to at least 12 cancer types [2].
Not only that, more large cohort studies have shown that body mass index (BMI) is associated with more cancer types, and some of the correlations may be non-linear.
In addition, central fat, which is usually assessed using waist circumference (WC), has also been found to be associated with the risk of several cancer types.
Therefore, studying whether body mass index and waist circumference are related to the risk of many cancer types is a study worthy of discussion.
In this study, the research team conducted a large prospective cohort study based on population-based electronic health records in Catalonia, Spain.
Between 2006 and 2017, the researchers included 3,658,417 cancer-free adults, and analyzed and screened 26 different cancer types to determine their cause-specific risk ratios (HRs).
Research flow chart Subsequently, the researchers conducted an average of 8.
3 years of long-term follow-up of these participants, and more than 200,000 (202,837) participants were diagnosed with cancer.
Statistical analysis shows that a higher body mass index (BMI) is associated with 9 cancers, including: uterine cancer, kidney cancer, gallbladder cancer, thyroid cancer, colorectal cancer, postmenopausal breast cancer, multiple myeloma, leukemia, and non-Hodgkin Chikin's lymphoma.
Not only that, a higher body mass index (BMI) is also positively correlated with the risk of the other three cancers in non-smokers-head and neck cancer, central nervous system tumors, and Hodgkin's lymphoma.
The corresponding HRs range (in increments of 5 kg/m2) from 1.
04 (99% CI; 1.
01-1.
08) for non-Hodgkin’s lymphoma to 1.
49 (99% CI; 1.
45-1.
53) for uterine cancer. The relationship between body mass index (BMI) and the risk of 26 cancers in the overall population.
Interestingly, a low body mass index (BMI) may also increase the risk of certain cancer types.
Taking into account non-linear factors, BMI has a U-shaped relationship with prostate cancer, and an L-shaped relationship with head and neck cancer, esophageal cancer, laryngeal cancer, tracheal cancer, bronchial cancer, and lung cancer.
These phenomena indicate that low body mass index is equivalent to the risk of cancer caused by heavy smoking.
The relationship between the body mass index (BMI) of non-smokers and the risk of 10 cancers.
In addition, of the 291,305 participants who measured their waist circumference, 27,837 were diagnosed with cancer.
Research data shows that the correlation between body mass index (BMI) and waist circumference (WC) and cancer risk is highly overlapped in all cancers.
BMI and WC are comparable to the estimates of obesity-related cancer risk at the population level.
In summary, this study shows that the higher the body mass index (BMI), the higher the risk of 12 types of cancer.
The risk of 5 cancers related to smoking factors is reduced, and among people who have never smoked, a higher BMI will also increase the risk of blood cancer and head and neck cancer.
In addition, the study also proves that body mass index (BMI) and waist circumference (WC) are comparable to the estimates of obesity-related cancer risk at the population level.
It can be seen that obesity is closely related to the occurrence of many types of cancers, which suggests that obesity is not just a simple metabolic disease.
Perhaps the prevention of cancer starts with the prevention of obesity! Reference: https://doi.
org/10.
1186/s12916-020-01877-3 Open for reprint
