• Christine de la Loge, Elyse Trudeau, Patrick Marquis, Peter Kahrilas, Vincenzo Stanghellini, Nicholas J Talley, Jan Tack, Dennis A Revicki, Anne M Rentz, and Dominique Dubois.
• Mapi Values, Lyon, France. cdelaloge@mapi.fr
• Qual Life Res. 2004 Dec 1; 13 (10): 1751-62.

ObjectiveSummarize the Patient Assessment of Upper GastroIntestinal Disorders-Quality of Life (PAGI-QOL) development and provide results on its reliability and validity from the international psychometric validation in dyspepsia, GastroEsophageal Reflux Disease (GERD), and gastroparesis.MethodsSubjects completed the pilot PAGI-QOL at baseline and 8 weeks; and a subsample also at 2 weeks. Other assessments were: Patient Assessment of Upper Gastrointestinal Disorders-Symptom Severity Index, SF-36, number of disability days.Results1736 patients completed the PAGI-QOL at baseline. The questionnaire was reduced, producing a 30-item final version covering five domains: Daily Activities, Clothing, Diet and Food Habits, Relationship (REL), and Psychological Well-Being and Distress. Internal consistency was excellent (Cronbach's alpha range: 0.83-0.96). Test-retest reproducibility was good: intraclass correlations coefficients were over 0.70 except for the REL scale (0.61). Concurrent validity between the PAGI-QOL total score and all SF-36 subscale scores was good with moderate (0.52) to strong (0.72) correlations. PAGI-QOL scores showed excellent discriminant properties: patients who had spent some days in bed, had missed some days at work, and were kept from usual activities had much lower PAGI-QOL scores than those who did not (p < 0.0001).ConclusionThe PAGI-QOL is a valid and reliable instrument assessing quality of life in patients with dyspepsia, GERD, or gastroparesis.

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