Table 4. Univariate Analyses for 13-Month Posttraumatic Growth Inventory Short-Form Scores 
	
 	Effect
(95% CI)	P-value1	
Parent Gender		0.246	
  Male	Reference		
  Female	1.96 (-1.39, 5.32)		
Parent Age	0.01 (-0.17, 0.2)	0.898	
Parent Race		0.0412	
  Black/African American	6.95 (1.52, 12.39)		
  White/Caucasian	Reference		
  Other	2.66 (-3.45, 8.77)		
Parent Ethnicity		0.1532	
  Hispanic or Latino	4.03 (-1.55, 9.62)		
  Non-Hispanic or Latino	Reference		
Parent Education		0.0082	
  Some high school or less	Reference		
  High school graduate or GED3	-3.96 (-10.72, 2.81)		
  Vocational school or some college	-8.97 (-15.63, -2.31)		
  College degree or higher	-9.54 (-15.86, -3.21)		
Parent Marital Status		0.1132	
  Married	-4.18 (-9.38, 1.02)		
  Single	Reference		
Relation to Child		0.384	
  Biological parent	-2.89 (-9.49, 3.72)		
  Other	Reference		
Surviving Children		0.0462	
  None	Reference		
  One	-5.76 (-11.38, -0.14)		
  Two or more	-1.07 (-6.61, 4.47)		
Child Gender		0.793	
  Male	Reference		
  Female	0.54 (-3.55, 4.62)		
Child age at time of death (years)	-0.06 (-0.31, 0.18)	0.619	
Trajectory of Death		0.203	
  Sudden unexpected death	Reference		
  Death from a congenital anomaly	5.69 (-0.06, 11.44)		
  Death from potentially curable disease	1.25 (-4.53, 7.02)		
  Death from progressive condition with intermittent crises	3.75 (-1.86, 9.36)		
Mode of Death		0.817	
  Brain death	1.84 (-4.51, 8.18)		
  Failed Cardiopulmonary Resuscitation	1.11 (-5.63, 7.86)		
  Limitation or Withdrawal of life support	Reference		
Cause of Death		0.323	
  Cardiac	4.99 (-3.34, 13.32)		
  Respiratory	3.54 (-5.43, 12.51)		
  Malignancy	2.67 (-7.46, 12.79)		
  Sepsis or Multiple Organ Failure	9.09 (0.61, 17.57)		
  Neurologic	2.64 (-6.26, 11.54)		
  Trauma	Reference		
  Other	3.87 (-8.82, 16.56)		
PICU length of stay (days)4	0.05 (0, 0.1)	0.0412	
Hospital length of stay (days)	0.05 (0, 0.1)	0.0332	
6-Month ICG Score5	-0.16 (-0.28, -0.03)	0.0172	
6-Month PHQ-8 Score6	-0.48 (-0.77, -0.2)	0.0012	
6-Month SPRINT Score7	-0.26 (-0.49, -0.04)	0.0232	
6-Month Overall Health		0.0282	
  Excellent or Very Good	Reference		
  Good	1.54 (-2.66, 5.74)		
  Fair or Poor	-5.06 (-10, -0.12)		
1 Each p-value is from a mixed model with the predictor listed and 13-month PTGI-SF score as the outcome.
2 All variables with p-values < 0.2 are candidate predictors for the multivariable model.
3 GED: General Educational Development test.
4 PICU: Pediatric intensive care unit.
5 ICG: Inventory of Complicated Grief. Higher scores indicate more grief symptoms.
6 PHQ-8: Patient Health Questionnaire-8: Higher scores indicate more depression symptoms. 
7 SPRINT: Short Posttraumatic Stress Disorder Rating Interview. Higher scores indicate more PTSD symptoms.