Table 1.

Characteristics of 1370 MESA participants at baseline, by circulating 25(OH)D concentration

Characteristic25(OH)D
≥15 ng/ml(n = 1004)<15 ng/ml(n = 366)
Age (yr; mean ± SD)64.6 ± 9.962.1 ± 10.3
Male gender (n [%])454 (45.2)178 (48.6)
Race/ethnicity
    white484 (48.2)77 (21.0)
    Chinese144 (14.3)37 (10.1)
    black192 (19.1)172 (47.0)
    Hispanic184 (18.3)80 (21.9)
Site (n [%])
    Wake Forest University, Winston-Salem, NC146 (14.5)58 (15.8)
    Columbia University, New York, NY139 (13.8)69 (18.9)
    Johns Hopkins University, Baltimore, MD129 (12.8)66 (18.0)
    University of Minnesota, Twin Cities, MN176 (17.5)49 (13.4)
    Northwestern University, Chicago, IL200 (19.9)76 (20.8)
    University of California, Los Angeles, Los Angeles, CA214 (21.3)48 (13.1)
Season of measurement (n [%])
    January through March246 (24.5)137 (37.4)
    April through June316 (31.5)110 (30.1)
    July through September200 (19.9)40 (10.9)
    October through December242 (24.1)79 (21.6)
Diabetes (n [%])121 (12.1)63 (17.3)
BP (n [%])
    normal284 (28.3)93 (25.4)
    prehypertension187 (18.6)57 (15.6)
    hypertension533 (53.1)216 (59.0)
Smoking (n [%])
    never526 (52.5)181 (49.7)
    former392 (39.1)130 (35.7)
    current84 (8.4)53 (14.6)
CKD305 (30.4)89 (24.4)
eGFR (ml/min per 1.73 m2; mean ± SD)72.0 ± 17.775.3 ± 20.9
BMI (kg/m2; mean ± SD)27.6 ± 4.930.4 ± 6.0
Physical activity (MET min/wk; mean ± SD)1710 ± 24301160 ± 1680
CRP (mg/L; geometric mean ± geometric SD)1.84 ± 3.112.17 ± 3.09
Total cholesterol (mg/dl; mean ± SD)195 ± 35191 ± 36
HDL cholesterol (mg/dl; mean ± SD)52.1 ± 15.149.1 ± 14.5
Triglycerides (mg/dl; mean ± SD)131 ± 97136 ± 83
LDL cholesterol (mg/dl; mean ± SD)117 ± 30115 ± 33