Echocardiogram characteristics of collegiate football players indexed to BSA
| Echo metric/BSA (mm/m2) | Overall | Race | Mean difference | Effect size | Position group | Mean difference | Effect size | ||
| Black | White | Non-linemen | Linemen | ||||||
| Mean (SD) (range) | Mean (SD) (range) | (95% CI) | Cohen’s d | Mean (SD) (Range) | (95% CI) | Cohen’s d | |||
| ARD | 13.1 (1.7) (7.6–18.2) | 13.0 (1.8) (7.6–18.2) | 13.1 (1.6) (8.9–16.9) | 0.11 (−0.48 to 0.25) | 0.06 | 13.6 (1.6) (8.4–18.2) | 12.3 (1.6) (7.6–16.3) | 1.3 (0.97 to 1.66) | 0.81* |
Sample size (N) for ARD: overall (340), Black (197), White (142), non-linemen (214), linemen (126).
*P<0.001.
ARD, aortic root diameter; BSA, body surface area.