Table 3.

Model based estimates for development in child self-reported changes of quality of life (KINDL) and self-esteem (BSCY-II)

Quality of life (KINDL)	Child report
	Coefficient	95% CI	p Value
Condition by time interaction	− 5.19
EC vs CC at T1	− 1.95	− 3.79, 0.11	0.037
EC vs CC at T2	1.30	− 0.66. 3.27	0.194
T2 vs T1, EC	5.83	4.33, 7.33	< 0.001
T2 vs T1, CC	2.57	1.36, 3.79	< 0.001
Girls vs boys	− 3.48	− 5.12, − 1.84	< 0.001
Older vs younger	− 4.21	− 5.85, − 2.58	< 0.001
Self-esteem (BSCY-II)
Condition by time interaction
EC vs CC at T1	− 1.63	0.27, 2.99xx	0.019
EC vs CC at T2	1.07	− 2.53, 0.38xx	0.149
T2 vs T1, EC	4.05	2.94, 5.16	< 0.001
T2 vs T1, CC	1.35	0.45, 2.26	0.003
Girls vs boys	− 2.37	− 3.58, —1.15	< 0.001
Older vs younger	− 3.09	− 4.30, —1.88	< 0.001

N = 791. KINDL = Kinder Lebensqualität Fragebogen, BSCY-II = (Beck youth inventory-II-self-concept scale). Significant results are shown in bold

EC = Emotion Condition, CC = Control condition, T1 = pre-intervention, T2 = post-intervention