Table 3.

Association of plasma copeptin with the presence of metabolic syndrome: logistic regression analyses

	OR (95% CI)
	P value
	First quartile	Second quartile	Third quartile	Fourth quartile
African-Americans
Copeptin, pmol/liter	<5.0	5.0–8.0	8.0–12.7	>12.7
Unadjusted	1	1.35 (1.01–1.81)	1.36 (1.01–1.83)	2.04 (1.48–2.81)
		0.045	0.042	<0.001
Age and sex adjusted	1	1.40 (1.04–1.89)	1.49 (1.10–2.02)	2.18 (1.56–3.06)
		0.025	<0.001	<0.001
Fully adjusted	1	1.42 (1.05–1.93)	1.49 (1.07–2.06)	2.07 (1.45–2.95)
		0.024	0.017	<0.001
Non-Hispanic whites
Copeptin, pmol/liter	<3.32	3.32–5.0	5.0–7.91	>7.91
Unadjusted	1	1.17 (0.84–1.62)	1.82 (1.33–2.48)	2.0 (1.41–2.71)
		0.36	<0.001	<0.001
Age and sex adjusted	1	1.16 (0.84–1.62)	1.81 (1.32–2.49)	1.91 (1.36–2.66)
		0.38	<0.001	<0.001
Fully adjusted	1	1.12 (0.79–1.59)	1.79 (1.27–2.51)	1.74 (1.21–2.5)
		0.52	<0.001	0.003

The fully adjusted model includes age, sex, serum creatinine, history of ever smoking, statin use, past history of myocardial infarction/stroke, physical activity, educational status, and diuretic use. CI, Confidence interval.