Table 1 Distributions of six cumulative lifestyle- and health-related components among study participants from CARDIA study
Variables | Description | Mean (SD) | IQR |
|---|---|---|---|
Age | Chronological age, at Y20 | 45.9 (3.5) | 5.7 |
Sex, N (%) | Men | 391 (52.6) | Â |
Women | 353 (47.5) | Â | |
Race, N (%) | Black participants | 304 (40.9) | Â |
White participants | 440 (59.1) | Â | |
Smoking | Total packs of cigarettes by Y20 (for former and current smokers) | 1717.5 (3348.4) | 1764.0 |
Smoking status at Y20, N (%) | Never | 459 (61.7) | Â |
Former | 147 (19.8) | Â | |
Current | 138 (18.6) | Â | |
Alcohol consumption | Total grams of alcohol consumption by Y20 | 227.5 (341.6) | 298.0 |
Diet | Average Healthy Eating Index score, over Y0, Y7, and Y20 | 67.6 (11.8) | 15.9 |
Education | Total years of education, at Y20 | 15.1 (2.5) | 3.0 |
Physical activity | Cumulative total intensity score by Y20 | 350.9 (279.0) | 340.0 |
Sleep hours | Average sleeping hours in the past 30Â days, at Y15 and Y20 | 6.7 (1.3) | 1.3 |
BMI | Body mass index (kg/m2), at Y20 | 29.3 (6.4) | 7.5 |
Field center, N (%) | Birmingham | 197 (26.5) | Â |
Chicago | 174 (23.4) | Â | |
Minnesota | 181 (24.3) | Â | |
Oakland | 192 (25.8) | Â |