Gene Variation of Endoplasmic Reticulum Aminopeptidases 1 and 2, and Risk of Blood Pressure Progression and Incident Hypertension among 17,255 Initially Healthy Women

Table 1

Baseline characteristics of the study population.

Variable
Age, years	52.00 [48.00, 57.00]
Body-mass index, kg/m^2	24.21 [22.05, 27.40]
Smoking status, %
Current	11.88
Past	37.24
Never	50.88
History of diabetes, %	1.29
History of hyperlipidemia ≥240 mg/dL, %	24.98
Exercise, times/week, %
Rarely/never	35.19
<1	19.80
1 to 3	33.11
>3	11.89
Alcohol use, %
Rarely/never	41.41
Monthly	13.45
Weekly	34.42
Daily	10.71
Highest education level, %
Less than a Bachelor’s degree	53.67
Bachelor’s degree	24.97
Master’s or doctoral degree	21.37
Aspirin use, %	49.71
Beta-carotene use, %	49.92
Vitamin-E use, %	50.38
Current hormone use, %	43.32
Baseline BP category, %
<120/75 mmHg	44.76
120–129/75–84 mmHg	39.14
130–139/85–89 mmHg	16.10

Data are median and interquartile range for continuous, and percentages for categorical variables.