Prevalence of metabolic syndrome in Iran: A 2011 update.
BACKGROUND
The aim of the present study was to determine the prevalence of metabolic syndrome and its individual components among the Iranian adult population in 2011 and to investigate changes between 2007 and 2011.


METHODS
Data from two rounds of the Surveillance of Risk Factors of Non-communicable Diseases national surveys conducted in 2007 and 2011 were pooled. Metabolic syndrome was defined according to International Diabetes Federation criteria.


RESULTS
In 2007, the prevalence of metabolic syndrome among adults aged 25-64 years was 35.95 (95% confidence interval [CI] 34.27-37.63), which decreased to 32.96 (95% CI 30.73-35.18) in 2011 (P = 0.0108). Despite this overall decline, the prevalence of central obesity (P = 0.1383), raised triglycerides (P = 0.3058), and reduced high-density lipoprotein cholesterol (HDL-C; P = 0.5595) remained constant. There was a trend towards a decline in the proportion of individuals with increased blood pressure (P = 0.0978), and the proportion of adults with increased fasting plasma glucose (FPG) increased (P < 0.0001). In 2011, the prevalence of central obesity, raised triglycerides, reduced HDL-C, increased blood pressure and increased FPG was 51.88 (95% CI 48.97-54.79), 36.99 (95% CI 34.52-39.45), 54.72 (95% CI 50.87-58.57), 38.92 (95% CI 36.19-41.64), and 24.97 (95% CI 22.02-27.93) respectively.


CONCLUSIONS
Over the period 2007-11, the prevalence of metabolic syndrome has decreased slightly in Iran, although prevalence of increased FPG has increased significantly. One-third of the Iranian adult population is diagnosed with metabolic syndrome.
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Sina
S
Noshad
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Mehrshad
M
Abbasi
Centers for Disease Control and Prevention, Tehran, Iran.
Koorosh
K
Etemad
Department of Preventive Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Alipasha
A
Meysamie
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Mohsen
M
Afarideh
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Elias
E
Khajeh
Centers for Disease Control and Prevention, Tehran, Iran.
Fereshteh
F
Asgari
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Mostafa
M
Mousavizadeh
Centers for Disease Control and Prevention, Tehran, Iran.
Ali
A
Rafei
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Mohamadreza
M
Neishaboury
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Alireza
A
Ghajar
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Manouchehr
M
Nakhjavani
Centers for Disease Control and Prevention, Tehran, Iran.
Jalil
J
Koohpayehzadeh
Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran, Iran.
Alireza
A
Esteghamati
D000328:Adult; D000368:Aged; D001786:Blood Glucose / Q000032:analysis; D016009:Chi-Square Distribution; D008076:Cholesterol, HDL / Q000097:blood; D005215:Fasting / Q000097:blood; D005260:Female; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood* / Q000453:epidemiology*; D008875:Middle Aged; D009765:Obesity / Q000097:blood / Q000453:epidemiology; D011159:Population Surveillance / Q000379:methods*; D015995:Prevalence; D018570:Risk Assessment / Q000379:methods* / Q000706:statistics & numerical data; D012307:Risk Factors; D014280:Triglycerides / Q000097:blood
D001786:Blood Glucose; D008076:Cholesterol, HDL; D014280:Triglycerides
Iran; abdominal obesity; epidemiology; metabolic syndrome; prevalence; 代谢综合征; 伊朗; 患病率; 流行病学; 腹型肥胖