Comparison of metabolic syndrome prevalence using four different definitions – a population-based study in Finland

Table 6 Prevalence of components by MetS definition in participants identified as having MetS^a

Component	WHO (1998) (n=1007)	95% CI	NCEP-ATP III (2004) (n=1896)	95% CI	IDF (2005) (n=2360)	95% CI	JIS (2009) (n=2448)	95% CI
Obesity	99.3%	98.6-99.7	86.6%	85.0-88.1	100.0%*	99.8-100.0	96.4%	95.6-97.1
Lipid metabolism^b	51.6%	48.5-54.7
Triglycerides			56.1%	53.9-58.3	46.1%	44.1-48.1	47.3%	45.3-49.3
HDL-C			40.1%	37.9-42.3	33.5%	31.6-35.4	33.8%	32.0-35.7
Blood pressure	90.6%	88.6-92.3	85.9%	84.3-87.4	91.4%	90.2-92.5	91.6%	90.4-92.6
Glucose/diabetes	100.0%*	99.6-100.0	84.7%	83.0-86.3	83.9%	82.4-85.3	84.2%	82.7-85.6

* Required component
^aPrevalences were calculated in participants classified as having MetS, separately for each definition
^bLipid metabolism included both triglycerides and HDL-C in the WHO definition

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