Table 2.

Age-, gender-, and race- adjusted scores and score difference between survivors and siblings.

Subscale Score	Survivor mean score	Sibling mean score	Difference	Effect Size* (95% CI)	p- value
Relating to Others	18.59	16.41	2.18 (1.12 - 3.25)	0.22 (0.11 - 0.32)	<.001
New Possibilities	10.75	8.35	2.40 (1.70 - 3.11)	0.37 (0.26 - 0.48)	<.001
Personal Strength	11.87	9.65	2.23 (1.59 - 2.86)	0.37 (0.27 - 0.48)	<.001
Spiritual Change	5.30	4.34	0.96 (0.61 - 1.31)	0.28 (0.18 - 0.38)	<.001
Appreciation of Life	9.58	8.56	1.02 (0.55 - 1.49)	0.23 (0.12 - 0.34)	<.001

^*Effect Size = Standardized difference (i.e. Difference between groups divided by standard deviation of siblings).