Table 1.

Descriptive Statistics

Variable name	2 years	4 years	5 years	7 years	10 years	15 years
Resting RSA	5.37 (±1.27)	5.90 (±1.20)	6.07 (±1.17)	6.50 (±1.20)	7.29 (±1.07)	6.66 (±1.13)
Minimum	1.10	1.05	3.28	3.01	3.66	3.53
Maximum	8.56	10.20	9.42	10.72	9.90	9.72
White	5.21** (±1.30)	5.72** (±1.15)	5.86*** (±1.16)	6.33* (±1.16)	7.30 (±1.10)	6.57 (±1.16)
African American	5.72 (±1.20)	6.24 (±1.21)	6.45 (±1.14)	6.68 (±1.10)	7.28 (±0.99)	6.78 (±1.13)
RSA reactivity	0.58 (±0.75)	0.29 (±0.62)	0.26 (±0.73)	0.77 (±0.77)	0.80 (±0.81)	0.65 (±0.83)
Minimum	−1.92	−1.45	−2.66	−1.34	−2.11	−3.27
Maximum	3.10	2.85	2.50	3.72	3.36	2.85
White	0.51 (±0.73)	0.33 (±0.66)	0.22 (±0.78)	0.82 (±0.74)	0.85 (±0.76)	0.68 (±0.86)
African American	0.71 (±0.80)	0.24 (±0.53)	0.30 (±0.62)	0.63 (±0.73)	0.61 (±0.77)	0.52 (±0.80)
n	221	252	239	229	217	189

Note. RSA = respiratory sinus arrhythmia. Differences by race.

^*p < .05.

^**p < .01.

^***p < .001.