Abstract
Aims
The purpose of this study was to investigate trends in diabetic prevalence over the
past 11 years using Korea National Health and Nutrition Examination Survey (KNHANES)
data. In addition, we aimed to examine trends in diagnosed and undiagnosed diabetes
after stratification.
Methods
We used data from the KNHANES III (2005), IV (2007–2009), V (2010–2012), and VI (2013–2015).
46,157 participants were included in this study. Diabetes was defined as follows:
(1) an answer of ‘yes’ to whether the participants had ever been diagnosed with diabetes
by a physician, (2) fasting plasma glucose (FPG) ≥126 mg/dL, or (3) taking oral hypoglycemic
agents or insulin. All sampling and weight variables were stratified, and analysis
to account for the complex sampling design. The prevalence of diabetes was standardized
by the 2005 Korean Housing Census.
Results
In men, the crude prevalence of total and undiagnosed diabetes were significantly
increased with KNHANES phase (P for trend = 0.002 and 0.004, respectively). The age-standardized
prevalence of total, diagnosed and undiagnosed diabetes of both sexes increased with
the KNHANES phase (all P for trend < 0.001). Compared with the KNHANES III, the age-adjusted
odds ratios (ORs) for the crude-prevalence of undiagnosed diabetes in KNHANES IV,
V, and VI were 1.00 (0.72–1.41), 1.08 (0.78–1.51), and 1.42 (1.04–1.96) for men.
Conclusions
The prevalence of total, diagnosed and undiagnosed diabetes steadily increased and
public efforts should focus on screening for the detection of diabetes, especially
in men.
Keywords
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Article info
Publication history
Published online: February 02, 2018
Accepted:
January 17,
2018
Received in revised form:
December 8,
2017
Received:
September 6,
2017
Identification
Copyright
© 2018 Elsevier B.V. All rights reserved.
