Table 2. Baseline characteristics of study participants significantly associated with African, Native American and/or European genomic ancestry (The Bambui Cohort Study of Ageing).
| Characteristics | African | Native American | European |
|---|---|---|---|
| Median (IQR) | Median (IQR) | Median (IQR) | |
| Age in years | |||
| <69 | 10.3 (13.2) | 3.5 (4.7) | 83.1 (17.6) |
| > = 69 (above the mean) | 9.0 (11.8)a | 3.2 (4.2) | 84.9 (16.8)b |
| Schooling in years | |||
| > = 4 | 6.7 (8.7) | 2.5 (3.4) | 89.0 (13.0) |
| <4 | 11.5 (13.2)b | 4.0 (5.0)b | 80.6 (17.1)b |
| Monthly household income per capita | |||
| < 180 USD (below the median) | 11.0 (13.5) | 3.9 (4.7) | 81.5 (18.3) |
| > = 180 USD | 8.9 (10.9)b | 2.9 (4.2)b | 85.3 (16.3)b |
| Father’s occupation, % | |||
| Urban | 7.6 (9.2)b | 2.5 (3.8)b | 87.7 (14.3)b |
| Rural: landowner | 6.6 (8.7) | 2.7 (3.4) | 88.7 (12.7) |
| Rural: manual worker | 11.5 (13.4) | 4.0 (5.1) | 80.7 (16.9) |
| Unknown | 11.8 (17.4) | 3.9 (5.0) | 80.0 (21.7) |
| Any major ECG abnormality | |||
| No | 9.2 (11.8) | 3.2 (4.5) | 84.7 (16.9) |
| Yes | 10.3 (13.3)c | 3.5 (4.5)c | 82.5 (17.6)a |
| Body mass index in kg/m 2 | |||
| < 25 | 10.0 (13.2) | 3.5 (4.6) | 83.4 (18.4) |
| > = 25 | 9.4 (11.6)c | 3.2 (4.4) | 84.4 (16.2)c |
| Coronary heart disease | |||
| No | 9.4 (12.3) | 3.3 (4.4) | 84.2 (16.7) |
| Yes | 10.7 (13.6)c | 3.9 (5.2)c | 81.1 (17.6)c |
IQR, interquartile range; ECG, electrocardiogram.
ap<0.01, Kruskall Wallis tests for differences between medians.
bp<0.001, Kruskall Wallis tests for differences between medians.
cp<0.05, Kruskall Wallis tests for differences between medians.