Table 5.

Mean Score of PROMIS Pediatric Psychological Stress^a by Group (N = 477)^b

Subgroup	Mean	SE
High (N = 108, 22.64%)	53.7	1.5
Moderate (N = 245, 51.36%)	46.4	0.8
Low (N = 124, 26.00%)	40.1	0.6
	Chi-Square	P-Value
Overall test	109.3	<0.001
High vs. moderate	14.8	<0.001
High vs. low	68.3	<0.001
Moderate vs. low	42.1	<0.001

^aPROMIS Pediatric Psychological Stress score at T₂.

^bEstimated using AUXILIARY statement with DE3STEP option in Mplus 8.4.³³