Racial disparities in electrical and structural cardiac adaptation among adolescent athletes: A systematic review and meta-analysis

Table 1 Participant characteristics

Variable	Number of studies included in analysis	Black vs White athletes (MD, 95%CI)
Age (years)	5	MD = -0.24, 95%CI: -0.69 to 0.21, P = 0.3031, I2 = 92%
Body mass index (kg/m2)	4	MD = -0.22, 95%CI: -0.69 to 0.25, P = 0.3542, I2 = 42%
Body surface area (m2)	5	MD = -0.01, 95%CI: -0.08 to 0.07, P = 0.8754, I2 = 90%
Systolic blood pressure (mmHg)	5	MD = 0.97, 95%CI: -1.20 to 3.04, P = 0.3580, I2 = 78%
Diastolic blood pressure (mmHg)	5	MD = 2.75, 95%CI: 0.35-5.16, P = 0.0248, I2 = 89%
Heart rate (bpm)	5	MD = -1.35, 95%CI: -4.58 to 1.89, P = 0.4141, I2 = 90%

MD: Mean difference.