Psychometric Properties of the Needs Assessment Tool-Progressive Disease Cancer in U.K. Primary Care

Background: The assessment of patients' needs for care is a critical step in achieving patient-centered cancer care. Tools can be used to assess needs and inform care planning. The Needs Assessment Tool:Progressive Disease-Cancer (NAT:PD-C) is an Australian oncology clinic tool for assessment by clinicians of patients' and carers' palliative care needs. This has not been validated in the U.K. primary care setting.

Aim: The aim of this study was to test the psychometric properties and acceptability of a U.K. primary care adapted NAT:PD-C.

Design: Reliability: NAT:PD-C-guided video-recorded consultations were viewed, rated, and rerated by clinicians. Weighted Fleiss' kappa and prevalence- and bias-adjusted kappa statistics were used. Construct: During a consultation, general medical practitioners (GPs) used NAT:PD-C, patient measures (Edmonton Symptom Assessment Scale; Research Utilisation Group Activities of Daily Living; Palliative care Outcome Score; Australian Karnofsky Performance Scale), and carer measures (Carer Strain Index; Carer Support Needs Assessment Tool). Kendall's Tau-b was used.

Setting/participants: GPs, nurses, patients, and carers were recruited from primary care practices.

Results: Reliability: All patients' well-being items and four of five items in the carer/family ability to care section showed adequate interrater reliability. There was moderate test-retest reliability for five of six in the patients' well-being section and five of five in the carer/family ability to care section. Construct: There was at least fair agreement for five of six of patients' well-being items; high for daily living (Kendall's Tau-b = 0.57, P < 0.001). The NAT:PD-C has adequate carer construct validity (five of eight) with strong agreement for two of eight patients. Over three-quarters of GPs considered the NAT:PD-C to have high acceptability.

Conclusion: The NAT PD-C is reliable, valid, and acceptable in the UK primary care setting. Effectiveness in reducing patient and carer unmet needs and issues regarding implementation are yet to be evaluated.