Panate Pukrittayakamee1, Ladarat Sapinum2, Panadda Suwan2, Richard Harding3. 1. Department of Psychiatry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. 2. Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand. 3. Department of Palliative Care, Policy & Rehabilitation, King's College London, Florence Nightingale School of Nursing, Midwifery and Palliative Care, Cicely Saunders Institute, London, UK. Electronic address: richard.harding@kcl.ac.uk.
Abstract
BACKGROUND: Palliative care is now part of Universal Health Coverage goals. Measurement of person-centered outcomes is central to determining quality and effectiveness. Guidance in psychometrics requires tools applied in new settings to have their properties tested. OBJECTIVES: To translate staff and patient versions of the Palliative care Outcome Scale (POS, version 2) into Thai, and to determine its psychometric properties among cancer patients in a Thai public hospital. DESIGN: The Thai POS was subjected to cross-cultural translation: forward translation, backward translation, review by experts, and content validity index measurement. The patient-rated and staff-rated versions were completed by 379 nurses. We tested internal consistency, known-group comparison, responsiveness, and agreement. SETTING/PARTICIPANTS: About 379 Thai cancer patients were admitted to Maharaj Nakorn Chiang Mai Hospital. RESULTS: We found good internal consistency (Cronbach's alpha 0.9), good discrimination between known groups (significant difference in scores between high and low performance status groups; Z ranged from -9.95 to -7.80; P < 0.001), good responsiveness (improvements in at Time 2; Z ranged from -14.01 to -6.31; P < 0.001), and acceptable to good patient-staff agreement on ratings (weighted kappa range 0.31-0.73). CONCLUSION: The Thai POS is valid and reliable. These findings enable researchers and clinicians to apply the POS in primary research and routine clinical practice to both determine the effectiveness of interventions and improve care. This is the first validation in the region of a multidimensional person-centered outcome measure designed specifically for patients and families with advanced disease.
BACKGROUND: Palliative care is now part of Universal Health Coverage goals. Measurement of person-centered outcomes is central to determining quality and effectiveness. Guidance in psychometrics requires tools applied in new settings to have their properties tested. OBJECTIVES: To translate staff and patient versions of the Palliative care Outcome Scale (POS, version 2) into Thai, and to determine its psychometric properties among cancerpatients in a Thai public hospital. DESIGN: The Thai POS was subjected to cross-cultural translation: forward translation, backward translation, review by experts, and content validity index measurement. The patient-rated and staff-rated versions were completed by 379 nurses. We tested internal consistency, known-group comparison, responsiveness, and agreement. SETTING/PARTICIPANTS: About 379 Thai cancerpatients were admitted to Maharaj Nakorn Chiang Mai Hospital. RESULTS: We found good internal consistency (Cronbach's alpha 0.9), good discrimination between known groups (significant difference in scores between high and low performance status groups; Z ranged from -9.95 to -7.80; P < 0.001), good responsiveness (improvements in at Time 2; Z ranged from -14.01 to -6.31; P < 0.001), and acceptable to good patient-staff agreement on ratings (weighted kappa range 0.31-0.73). CONCLUSION: The Thai POS is valid and reliable. These findings enable researchers and clinicians to apply the POS in primary research and routine clinical practice to both determine the effectiveness of interventions and improve care. This is the first validation in the region of a multidimensional person-centered outcome measure designed specifically for patients and families with advanced disease.
Authors: Catherine J Evans; Lucy Ison; Clare Ellis-Smith; Caroline Nicholson; Alessia Costa; Adejoke O Oluyase; Eve Namisango; Anna E Bone; Lisa Jane Brighton; Deokhee Yi; Sarah Combes; Sabrina Bajwah; Wei Gao; Richard Harding; Paul Ong; Irene J Higginson; Matthew Maddocks Journal: Milbank Q Date: 2019-03 Impact factor: 4.911