Case study: identification of anxiety and subsequent intervention in an adolescent male with autism, severe intellectual disability and self-injurious behaviour

Figures & data

Table 1. PAC and ABC scores at admission, discharge and follow-up, with reliable change index (RCI).

	Cut-off	Admission	RCI	Discharge	RCI	Six months after discharge
Psychopathology in Autism Checklist (PAC)
General Adjustment Problems	2.0	2,9′	3.21*	1,8	−0.58	2,0
Psychosis	2.3	2,7′	2.30*	1,9	0.58	1,7
Depression	2.0	2,0′	0.26	1,9	0.52	1,7
Anxiety	1.8	3,2′	3.88*	1,5	0.69	1,2
Obsessive-Compulsive Disorder	2.4	2,6′	3.10*	1,4	−0.78	1,7
Aberrant Behavior Checklist (ABC)
Irritability		30	6.17*	12	−2.06*	18
Lethargy		5	1.03	2	−0.69	4
Stereotypy		14	2.59*	10	−0.65	11
Hyperactivity		28	4,50*	14	0.00	14
Inappropriate Speech		11	5,11*	3	−5,11*	11

Note. Scores on or above cut-off on the PAC are marked by an apostrophe. PAC and ABC scores at admission and discharge are averages from those completed by ward staff. For follow-up, one professional caregiver in Philip’s home scored the instruments. Norm data for calculations of the RCI were retrieved from Helverschou et al. (2009) and Halvorsen et al. (2019). An RCI of 1.96 or greater indicates statistical significant change at the p<.05 level and is marked by an asterisk.

Figure 1. Number of SIB episodes for each day during the admission. The figure was made using SPSS version 25.

Halvorsen, M., Aman, M. G., Mathiassen, B., Brøndbo, P. H., Steinsvik, O. O. and Martinussen, M. 2019. Psychometric properties of the Norwegian aberrant behavior checklist and diagnostic relationships in a neuro-pediatric sample. Journal of Mental Health Research in Intellectual Disabilities, 12, 234–255. https://doi.org/https://doi.org/10.1080/19315864.2019.1630872

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