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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: J Hypertens. 2010 Mar;28(3):446–451. doi: 10.1097/HJH.0b013e3283340c16

Table 2.

Normalized Urinary Melatonin and Risk of Incident Hypertension

Quartiles of aMT6s/creatinine ratio, ng/mg
5.5
(<10.1)
13.8
(10.1-16.9)
21.0
(17.0-27.0)
36.9
(>27.0)
p-trend
No. of participants 138 139 139 138
No. of cases 49 33 22 21
Age-adjusted RR (95% CI) 1.0 (ref) 0.63 (0.40-0.98) 0.42 (0.25-0.70) 0.38 (0.23-0.65) <0.001
Multivariable RR (95% CI) 1.0 (ref) 0.66 (0.42-1.05) 0.42 (0.25-0.72) 0.49 (0.28-0.85) <0.001

Multivariable models adjusted for age, BMI, (BMI)2, physical activity, alcohol intake, smoking, status, urine creatinine, and family history of hypertension.