Table 1 Participant characteristics

Age in Years

Mean (SD)

9.43 (0.336)

9.45 (0.407)

9.44 (0.370)

Pubertal Development Scale Scum

Mean (SD)

5.42 (1.83)

6.61 (1.85)

5.99 (1.92)

Race

Mixed Ancestry

12 (25.0%)

4 (9.1%)

16 (17.4%)

African American/Black

36 (75.0%)

40 (90.9%)

76 (82.6%)

Research Site

Atlanta, GA

14 (29.2%)

12 (27.3%)

26 (28.3%)

Detroit, MI

34 (70.8%)

32 (72.7%)

66 (71.7%)

Resting HR

Mean (SD)

81.6 (10.8)

84.7 (10.6)

83.1 (10.8)

Resting HR Norms

Below Normative

17 (35.4%)

21 (47.7%)

38 (41.3%)

Normative

31 (64.6%)

23 (52.3%)

54 (58.7%)

Violence Exposure

Mean (SD)

10.7 (5.84)

9.86 (6.14)

10.3 (5.97)

PTSS Severity

Mean (SD)

23.9 (13.8)

23.7 (15.9)

23.8 (14.8)