Trends in Obesity-Related Cardiovascular and Cancer Mortality in Switzerland, 1995-2019

Overview

From 1995 to 2019 in Switzerland, obesity-related cardiovascular and cancer mortality initially increased until 2005 and then declined, contrasting with continuous declines in obesity-unrelated mortality. Unlike the United States, obesity-related mortality did not slow the overall decline in cardiovascular disease (CVD) mortality, and younger generations exhibited lower obesity-related mortality rates.

Background

Obesity is a major contributor to cardiovascular disease and cancer mortality worldwide, with rising prevalence posing significant public health challenges. In countries like the United States, obesity has reversed declines in CVD mortality, especially among younger adults. Switzerland has experienced slower increases in obesity prevalence and stable childhood obesity rates, but the impact of obesity on mortality trends had not been fully characterized. This study analyzed Swiss mortality data from 1995 to 2019 using multiple cause of death approaches to distinguish obesity-related from obesity-unrelated mortality.

Data Highlights

Key Findings

• Obesity-related mortality rates rose from 1995 to 2005 but declined thereafter, while obesity-unrelated mortality rates consistently decreased from 1995 to 2019.
• The overall decline in cardiovascular disease mortality in Switzerland was not slowed by obesity-related mortality trends.
• Age-period-cohort analysis showed lower obesity-related mortality rates in younger generations compared to older cohorts.
• Childhood obesity prevalence remained stable in Switzerland, unlike the increases seen in the United States, potentially contributing to favorable mortality trends.
• Obesity-related cancer mortality decline slowed after 2005, primarily due to slower declines in obesity-unrelated cancer mortality.

Clinical Implications

These findings suggest that effective management of obesity and its related conditions, along with stable childhood obesity rates, may mitigate the impact of obesity on cardiovascular and cancer mortality. Clinicians should continue to emphasize obesity prevention and control, particularly targeting younger populations to sustain favorable mortality trends. Monitoring obesity-related mortality using multiple cause of death data can inform public health strategies.

Conclusion

In Switzerland, unlike in countries with rapid obesity increases, obesity-related mortality has not impeded the decline in cardiovascular disease mortality, with younger generations showing improved outcomes. This underscores the importance of continued obesity prevention and management efforts.

References

1. Swiss Federal Statistical Office, 1995-2019 -- Mortality Data
2. Global Burden of Disease Study 2019 -- Cause of Death Classification
3. Obesity and Mortality Trends in the United States, 2010-2017