Evaluation of Serum 25-Hydroxyvitamin D as a Predictor of Carotid Intima-Media Thickness and Carotid Total Plaque Area in Nonsmokers: The Tromsø Study

Table 1

Characteristics of the study population. The 4th Tromsø Study, 1994-1995.

Variables	Men, 𝑛=1994	Women, 𝑛=2200
Age, years	60.5±9.7	61.8±9.8
History of cardiovascular disease, 𝑛 (%)
Heart attack	205 (10.2)	70 (3.2)
Angina	237 (11.8)	192 (8.7)
Stroke	64 (3.2)	56 (2.5)
BMI, kg/m^2	26.5±3.2	26.7±4.5
Serum 25(OH)D, nmol L^−1	54.8±16.6	50.0±16.7^∗
Total cholesterol, mmol L^−1	6.5±1.2	6.9±1.3^∗
Total calcium, mmol L^−1	2.37±0.10	2.38±0.11
Mean IMT, mm	0.90±0.20	0.84±0.17^∗∗
TPA†, mm^2	12.1±19.4	7.6±13.0

†Subjects without plaque are not excluded.
* 𝑃<0.05.
** 𝑃<0.01.