Infant and Toddler Quality of Life Questionnaire ™ (ITQOL™)

Landgraf JM


Basic description

The Infant Toddler Quality of Life Questionnaire™ (ITQOL) was developed for use in infants and toddlers from 2-months-to-5 years of age.

There are two versions of the ITQOL - the 47-item short-form (ITQOL-SF47) and the 97-item full-length version (ITQOL). They measure the same concepts - just with fewer items. 

The ITQOL complements the Child Health Questionnaire (CHQ) (see related COA instruments tab)


Landgraf JM

Jeanne M. Landgraf is the principal developer of the ITQOL and ITQOL-SF47.
© HealthActCHQ Inc. All rights reserved. Reprinted with written permission.
To assess quality of life in infants and toddlers and to measure parental impact
Therapeutic area
  • Generic
Therapeutic indication


Type of Clinical Outcome Assessment (COA)
  • obsro ObsRO
parent-completed measure
Original language(s)
  • English for the USA
Bibliographic reference(s) of the original questionnaire

Raat H, Landgraf JM, Oostenbrink R, Moll HA, Essink-Bot ML. Reliability and validity of the Infant and Toddler Quality of Life Questionnaire (ITQOL) in a general population and respiratory disease sample. Qual Life Res. 2007 Apr;16(3):445-60 (PubMed Abstract)

Landgraf JM, Vogel I, Oostenbrink R, van Baar ME, Raat H. Parent-reported health outcomes in infants/toddlers: measurement properties and clinical validity of the ITQOL-SF47. Qual Life Res. 2013 Apr;22(3):635-46 (PubMed Abstract)

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