Development and initial validation of the Northwick Park Therapy Dependency Assessment

Area of Science:

• Neurorehabilitation
• Clinical Assessment Tools
• Therapy Intervention Measurement

Background:

• Quantifying therapy interventions is crucial for effective neurorehabilitation.
• Existing methods may not accurately reflect actual therapy delivery.
• A reliable assessment tool is needed to measure therapy dependency.

Purpose of the Study:

• To develop and validate the Northwick Park Therapy Dependency Assessment (NPTDA).
• To establish NPTDA as a measure of therapy interventions in neurorehabilitation.
• To compare NPTDA estimates with actual therapy delivery.

Main Methods:

• Iterative development of the NPTDA over 18 months.
• Comparison of NPTDA-estimated hours with activity analysis data.
• Analysis of prospective vs. retrospective NPTDA scores in 37 patients.

Main Results:

• NPTDA scores strongly correlated with activity analysis for therapy hours (rho 0.77).
• Initial algorithm overestimated hours; revised algorithm removed bias (P=0.15).
• Prospective and retrospective NPTDA scores showed strong correlation (rho 0.61).

Conclusions:

• The revised NPTDA provides an acceptable estimate of therapy interventions.
• The tool can differentiate intended from actual therapy delivery.
• Further evaluation in diverse populations and settings is recommended.