Chronic pain treatment in children and adolescents: less is good, more is sometimes better

BMC Pediatrics

Table 5 Comparison of standardised change scores between decliners vs. completers

							Statistics for main effect group
	Inpatient treatment decliners			Inpatient treatment completers			ANOVA				ANCOVA covariate: initial score + time difference
Individual changes ^§	Mean	SD	n	Mean	SD	n	df	F	p-value	eta ²	df	F	p-value	eta ²
Pain intensity^$	1.1	1.4	63	1.2	1.5	303	1,364	0.3	.573	-	1,362	0.7	.420	-
Pain-related disability^#	0.9	1.0	56	1.4	1.2	282	1,336	11.8	.001	.034	1,334	5.7	.018	.017

Note:
^§Individual change: (Child’s score at baseline – child’s score at follow-up)/SD of the group baseline score; Interpretation of change scores: 0.6 to 0.99: moderate change; ≥1.0 large change.
^$Numeric rating scale (NRS) 0–10.
^#Paediatric Pain Disability Index (P-PDI, [15]).
Boldface data reflect significant differences between the two groups.

ISSN: 1471-2431