Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
Linking the Pre-Assessment Information Form (PIF) to the ICF: Enhancing Standardized Functional Assessment in Parkinson's Disease.
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Rogatto Fernanda Botta Tarallo, Guelfi Érica Tardelli Neves, Alflen Vívian Elaine Vargas, Silva Leandro Bruno Barbosa, Pereira Gabriela Santos, Silva Soraia Micaela
Аннотация
BACKGROUND AND PURPOSE: Systematic documentation of functioning in people with Parkinson's disease (pwPD) requires a standardized language to enable comparability across services and countries. The International Classification of Functioning, Disability and Health (ICF) provides this framework; however, instruments recommended by the European Physiotherapy Guideline for Parkinson's disease have not previously been linked to its categories. This study aimed to link items from the Pre-Assessment Information Form (PIF) to ICF categories using the refined linking rules.
METHODS: Methodological study. Two independent evaluators with extensive knowledge of the ICF taxonomic framework applied 10 refined linking rules to 26 PIF items, working independently and blindly. Disagreements were resolved by a third evaluator with prior ICF experience. Inter-rater agreement was assessed using the Kappa coefficient (95% confidence interval).
RESULTS: Initial inter-rater agreement was moderate across all ICF taxonomy levels (k = 0.42-0.54; p < 0.001), decreasing as category specificity increased. Following a final consensus, 26 PIF items were linked to 25 unique ICF categories and 34 linked concepts across two components: Activities and Participation (21 categories; 84.0%) and Body Functions (4 categories; 16.0%). Within Activities and Participation, categories were predominantly distributed in the d4 Mobility domain (14 categories; 66.7%), followed by d5 Self-care (4; 19.0%), d6 Domestic Life (2; 9.5%), and d2 General Tasks and Demands (1; 4.8%). Secondary concepts were identified for seven items.
DISCUSSION: The resulting set of 25 ICF categories provides a structured description of the mobility and body function domains represented in the instrument. The application of ICF qualifiers to grade the severity of patient-reported limitations represents a potential next step, subject to implementation and validation in applied clinical settings.
METHODS: Methodological study. Two independent evaluators with extensive knowledge of the ICF taxonomic framework applied 10 refined linking rules to 26 PIF items, working independently and blindly. Disagreements were resolved by a third evaluator with prior ICF experience. Inter-rater agreement was assessed using the Kappa coefficient (95% confidence interval).
RESULTS: Initial inter-rater agreement was moderate across all ICF taxonomy levels (k = 0.42-0.54; p < 0.001), decreasing as category specificity increased. Following a final consensus, 26 PIF items were linked to 25 unique ICF categories and 34 linked concepts across two components: Activities and Participation (21 categories; 84.0%) and Body Functions (4 categories; 16.0%). Within Activities and Participation, categories were predominantly distributed in the d4 Mobility domain (14 categories; 66.7%), followed by d5 Self-care (4; 19.0%), d6 Domestic Life (2; 9.5%), and d2 General Tasks and Demands (1; 4.8%). Secondary concepts were identified for seven items.
DISCUSSION: The resulting set of 25 ICF categories provides a structured description of the mobility and body function domains represented in the instrument. The application of ICF qualifiers to grade the severity of patient-reported limitations represents a potential next step, subject to implementation and validation in applied clinical settings.