Table 1.
Characteristics of African Americans in the Coronary Artery Risk Development in Young Adults (CARDIA) Telomere Ancillary Study, Year 15 (2000/2001) and Year 25 (2010/2011)
| Characteristic | n (%) or M (SD) | N | % missing |
|---|---|---|---|
| Telomere length, kbp, Y15, M (SD) | 5.62 (.45) | 391 | 0% |
| Telomere length, kbp, Y25, M (SD) | 4.98 (.27) | 391 | 0% |
| Racial discrimination, Y15, M (SD) | 2.28 (1.88) | 391 | 0% |
| Racial discrimination, Y25, M (SD) | 1.79 (1.87) | 391 | 0% |
| Age, M (SD) | 39.74 (3.86) | 391 | 0% |
| Years elapsed Y15 to Y25, M (SD) | 9.93 (.32) | 391 | 0% |
| Gender, n (%) | 391 | 0% | |
| Women | 291 (74.4) | ||
| Men | 100 (25.6) | ||
| Education, n (%) | 360 | 8% | |
| High school or less | 187 (47.8) | ||
| More than high school | 173 (44.2) | ||
| Household income, n (%) | 384 | 2% | |
| <$25,000 | 91 (23.7) | ||
| $25,000–$49,999 | 118 (30.7) | ||
| $50,000+ | 92 (24.0) | ||
| $75,000+ | 83 (21.6) | ||
| Work status, n (%) | 389 | 1% | |
| Working | 339 (86.7) | ||
| Not working | 50 (12.8) | ||
| Marital status, n (%) | 387 | 1% | |
| Married | 176 (45.5) | ||
| Divorced, separated, widowed | 102 (26.4) | ||
| Never married | 109 (28.2) | ||
| Smoking, n (%) | 390 | 0% | |
| Never | 250 (64.1) | ||
| Former | 45 (11.5) | ||
| Current | 95 (24.4) | ||
| Body Mass Index,a M (SD) | 30.49 (6.59) | 390 | 0% |
Note. N = 391. Education, household income, employment, marital status, smoking, and body mass index measured at Y15. Sum of categories may not total 391 due to missing data. kbp = kilobase pairs; M = mean; SD = standard deviation; Y15 = Year 15; Y25 = Year 25.
a
Body mass index calculated as (weight in kilograms)/(height in meters)2.