Validation of a Parent Report Questionnaire: The Infant Gastrointestinal Symptom Questionnaire

Clinical Pediatrics
Anne W RileyPatricia A DeRusso

Abstract

To evaluate the reliability and validity of the Infant Gastrointestinal Symptom Questionnaire (IGSQ), a tool to assess feeding tolerance in infants. Qualitative methods were used to develop IGSQ content across 5 symptom clusters, yielding a 13-item index of parent-reported infant digestion and elimination behaviors over the prior 7 days. Classical psychometric methods evaluated factor structure, interrater and retest reliability, and validity in 4 prospective studies of 836 infants. Interrater and retest reliability were acceptable to good. IGSQ Index score was highly correlated (r = 0.89) with daily parent reports. IGSQ scores were significantly different between infants whose parents planned to switch formulas because of perceived feeding problems and those without parental concerns. The IGSQ is a practical, reliable, and valid method for assessment of infant gastrointestinal-related behaviors. Its use in clinical studies can provide empirical evidence to advance parent education regarding both normal and clinically meaningful feeding-related behaviors.

References

Aug 1, 1993·Clinical Pediatrics·S R OrensteinR Kartan
Jan 5, 2000·Clinical Pediatrics·F P PolackM J Maisels
Aug 2, 2005·Journal of Pediatric Gastroenterology and Nutrition·Linda DealJoseph F Fitzgerald
Feb 8, 2007·The American Journal of Clinical Nutrition·Daniel J RaitenWilliam W Hay
Aug 2, 2007·Journal of Pediatric Gastroenterology and Nutrition·Neta NevoRon Shaoul
Nov 11, 2010·European Journal of Clinical Nutrition·J TrabulsiP DeRusso

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Citations

Aug 30, 2019·Journal of Human Lactation : Official Journal of International Lactation Consultant Association·Britt Frisk PadosSuzanne M Thoyre
May 11, 2018·Advances in Neonatal Care : Official Journal of the National Association of Neonatal Nurses·Britt Frisk PadosCara McComish
Jul 24, 2020·Nutrición hospitalaria·Enriqueta RománMaria Luisa Vidal Guevara
Sep 22, 2020·Global Pediatric Health·Rebecca R HillBritt F Pados
Aug 6, 2021·Global Pediatric Health·Britt F PadosRebecca R Hill
Aug 22, 2021·Journal of Pediatric Gastroenterology and Nutrition·Marc BellaicheYvan Vandenplas

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