The Nutrition and Dietetic Patient Outcomes Questionnaires (NDPOQ)

The Nutrition and Dietetic Patient Outcomes Questionnaires (NDPOQ), both Adult and Parent versions, are self-reporting questionnaires which have been developed for use with adults and parents of children respectively, who are receiving nutrition and dietetic care to inform the quality of the Nutrition & Dietetic services.

The NDPOQ-A and NDPOQ-P provide patient-centric report of the outcome on the management of their condition or child’ condition resulting from the support and advice from the dietetic and nutrition services. Both measures comprise 15 items differencing only in respect of the item’s reference e.g. “…your condition” “…your child’s condition.”

For both the NDPOQ-A and NDPOQ-P, the individual respondent’s total score and responses to individual items can be used to address issues during consultation. Other applications include audit of the service including postal surveys to obtain population scores by age, sex and specialties etc. Other examples include:

  • Evaluating short-term interventions with a clear episode of care

  • Chronic patients (intervention for 3 months or longer, eg diabetes, renal)

  • Disease/condition

The NDPOQ is suitable for use with inpatients and outpatients.

New health outcomes questionnaires have been developed by Dr Keith Meadows, author of the Diabetes Health Profile (DHP), Health Psychologist with over 25 years of research experience, Director DHP Research & Consultancy Ltd. The development of this questionnaire was commissioned and funded by the dietetic team at the Royal Free London NHS Foundation Trust.

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Oxford University Innovation Limited is exclusively licensed to grant permissions to use the Nutrition and Dietetic Patient Outcomes Questionnaire both Adult Patient (NDPOQ-A) and Parent (NDPOQ-P) versions.

Attributes:

OK sign_blueNDPOQ-A and NDPOQ-P were developed using the multistage iterative process (including the significant input from patients and health care providers in their conceptual underpinning and content generation).

OK sign_blueNDPOQ-A and NDPOQ-P are short and simple to administer amongst the intended populations as they were designed as a patient self-completion measure.

OK sign_blueBoth questionnaires have received positive acceptance in the focus groups and cognitive interview debriefing sessions.

OK sign_blueThe readability level is suitable for a 12 year old.

Scoring System:

Scoring the NDPOQ provides a psychometrically-based total raw score ranging from 0-60 (where 0= poor outcomes, 60=positive outcomes). In addition scores can be calibrated so that 50 is the average score or norm. This norm-based score allows comparison across disease, groups, age and sex as well specialities etc.

Development:

NDPOQ was developed in 4 comprehensive stages:

stage 1Comprised a session with the dietetic Service at a NHS Trust to elicit the key concepts considered as important indicators of their advice and support in the management of the condition/disease for their current case load. This was followed by a focus group comprising current and previous users of the service to identify which aspects of the service were important to them and what benefits they had in the management of their disease/condition.

stage 2Was development of the draft versions of the two versions of the measure; the version for adults (NDPOQ-A) and the version aimed at parents of child patients (NDPOQ-P), both based on findings from stage one. This was followed by a further focus group of patients and parents to review the draft measure, formulate further items, and generally refine the measure. There were also cognitive-debriefing interviews with patients to finalize the wording and format the measure.

stage 3

Was field-tested in which suitable respondents completed the measure.

 

Assess thestage 4 psychometric properties of the measures for reliability, validity and acceptability in target populations.

The NDPOQ-A and NDOPQ-P have satisfactory psychometric properties supporting their validity and reliability, further research is recommended to further validate the measures.

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