Content Analysis of Work Limitation, Stanford Presenteeism, and Work Instability Questionnaires Using International Classification of Functioning, Disability, and Health and Item Perspective Framework

Table 4

Scope and alignment of the questionnaires when compared to the ICF core set for vocational rehabilitation.

Questionnaire (total number of items)	Alignment*		Scope
	Brief core set	Comprehensive core set	Brief core set	Comprehensive core set
WLQ-26 (26)	7%	88%	28.6%	11.4%
SPS-6 (6)	83%	100%	54.5%	18.2%
RA-WIS (23)	9%	30%	22.9%	11.4%

∗Does not account for the use of mandatory work related codes (d 840–859). Else with the mandatory work related codes being used for all the items the alignment would be perfect (100%).
WLQ-26: the 26-itemWork Limitation Questionnaire; SPS-6: the Stanford Presenteeism Scale-6; RA-WIS: Rheumatoid Arthritis Work Instability Scale. Alignment: percentage of the items that go to core set. Scope: the percentage of codes from core set reflected on the measure.