caa a22 4500 606180664 CHVBK 20210128100807.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s11136-015-1014-7 doi (NATIONALLICENCE)springer-10.1007/s11136-015-1014-7 Garratt Andrew Department for Quality and Patient Safety, Norwegian Knowledge Centre for the Health Services, St Olavs plass, Boks 7004, 0130, Oslo, Norway aut Evaluation of the stages of completion and scoring of the Patient Generated Index (PGI) in patients with rheumatic diseases [Elektronische Daten] [Andrew Garratt] Purpose: To evaluate the stages of completion and approaches to scoring the PGI for reliability, validity and responsiveness. Methods: Participants of inpatient rehabilitation or self-management programmes completed the closed PGI with the same areas at 1year as baseline. Test-retest reliability, validity and responsiveness were assessed for area scores (stage one), points (stage two) and methods of scoring the PGI. Results: One hundred and forty-five patients participated, and 118 (81%) completed the PGI correctly. Test-retest intraclass correlations were over 0.90 for area scores (stage two) and were 0.87 and 0.86 for final PGI scores with and without the sixth "rest of life” box. Individual area scores had the highest correlations with those for instruments assessing similar constructs; those for the area "rest of life” were lower. Compared to scores based on the sum of the stage two areas, PGI scores had higher correlations of a moderate level with those for patient-reported instruments widely used within rheumatology. Correlations were of a similar level with and without the sixth "rest of life” area, and those based on baseline points at follow-up were highest. The PGI had higher SRMs than the other instruments at 1year, the highest being for PGI scores based on baseline points. Conclusions: The fully closed version of the PGI, which uses baseline areas and baseline stage three points at follow-up, is most appropriate for assessing outcomes within healthcare evaluation. The sixth "rest of life” area has poorer measurement properties, and its removal does not adversely affect the measurement properties of the PGI. Springer International Publishing Switzerland, 2015 Individualised nationallicence Patient Generated Index nationallicence Reliability nationallicence Responsiveness nationallicence Validity nationallicence Quality of Life Research Springer International Publishing 24/11(2015-11-01), 2625-2635 0962-9343 24:11<2625 2015 24 11136 https://doi.org/10.1007/s11136-015-1014-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11136-015-1014-7 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Garratt Andrew Department for Quality and Patient Safety, Norwegian Knowledge Centre for the Health Services, St Olavs plass, Boks 7004, 0130, Oslo, Norway aut NATIONALLICENCE 773 0- Quality of Life Research Springer International Publishing 24/11(2015-11-01), 2625-2635 0962-9343 24:11<2625 2015 24 11136