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First diabetes prevalence study in Portugal: PREVADIAB study.
L Gardete-Correia1, J M Boavida, J F Raposo
1Portuguese Diabetes Association APDP, Lisbon, Portugal. gardete@apdp.pt
Summary
The prevalence of diabetes in Portugal is high, affecting 11.7% of adults. When including pre-diabetes, nearly 35% of Portuguese adults aged 20-79 have diabetes or pre-diabetes.
Area of Science:
- Endocrinology
- Public Health
- Epidemiology
Background:
- Diabetes mellitus is a significant global health concern.
- Accurate prevalence data is crucial for effective health intervention strategies.
- Type 2 diabetes and pre-diabetes pose a growing challenge worldwide.
Purpose of the Study:
- To determine the prevalence of Type 2 diabetes in Portugal.
- To ascertain the prevalence of pre-diabetes (impaired fasting glucose and impaired glucose tolerance).
- To analyze prevalence across different age groups and genders in the Portuguese population (20-79 years).
Main Methods:
- A nationally representative sample of 5167 subjects aged 20-79 years was analyzed.
- Prevalence was calculated using World Health Organization diagnostic criteria.
- Statistical analyses were performed on individuals without previously diagnosed diabetes.
Main Results:
- The overall prevalence of diabetes was 11.7%, with higher rates in men (14.2%) than women (9.5%).
- Pre-diabetes prevalence was 23.3%, leading to a combined diabetes and pre-diabetes rate of 34.9%.
- Diabetes prevalence increased significantly with age, reaching 26.3% in the 60-79 age group. Undiagnosed diabetes accounted for 5.1% of the total.
Conclusions:
- Diabetes and pre-diabetes are highly prevalent in the Portuguese population.
- A substantial proportion of diabetes cases remain undiagnosed (43.6% of diagnosed cases).
- Targeted public health interventions are needed to address the high prevalence of diabetes and pre-diabetes in Portugal.
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