A new study has based on surveillance data has reported that the prevalence of diabetes among US adults grew by 45% over the past 20 years.
The study has been published online May 1 in Diabetes Care.
This study included 22,586 adults sampled in three periods of the National Health and Nutrition Examination Survey from 3 periods:
- 1988 – 1994 (7950 participants).
- 1999 – 2004 (6756 participants).
- 2005 – 2010 (7880 participants).
Diabetes was defined as having self-reported diagnosed diabetes or having a fasting plasma glucose level ≥126 mg/dL or HbA1c ≥6.5% (48 mmol/mol).
The researchers looked at the prevalence of diabetes as well as body mass index (BMI), waist-to-hip ratio, waist circumference, and other measures in 3 age groups:
- Younger adults (aged 20 to 34).
- Middle-aged adults (aged 35 to 64).
- Older adults (aged 65 and older).
The authors found that number of adults with diabetes increased by 75% from 1988–1994 to 2005–2010 and the prevalence of diabetes increased over the two decades across all age-groups.
Younger adults had the lowest absolute increase in diabetes prevalence of 1.0%, followed by middle-aged adults (2.7%) and older adults (10.0%).
The authors concluded that during the past two decades, the prevalence of diabetes increased across all age-groups, but adults ≥65 years of age experienced the largest increase in absolute change.
Obesity was strongly associated with the increase in diabetes prevalence, especially in adults <65.
The limitation of the study was study were
- Cross-sectional study
- Did not distinguish between type 1 and type 2 diabetes
- One time measurement to establish undiagnosed diabetes.
- Diabetes Care. Published online May 1, 2013. Abstract