Development, internal reliability and preliminary construct validity of the Dutch Dietary Intention Evaluation Tool for In-patients (DIETI)

• DOI: 10.1016/j.numecd.2022.09.019
• Publication Date: 2022-10-08T22:59:26Z
• Authors: Daan L. de Frel; Hope Wicks; Zsuzsa Bakk; Nicole van Keulen; Vrouwke van Adrichem; Nikki van Tussenb...; Prof Douwe E. Atsma; Veronica R. Janssen
• Keywords: 0301 basic medicine; Health Behavior; Validation study; Reproducibility of Results; Intention; Validation Study; Diet; 3. Good health; 03 medical and health sciences; Behavior change; Surveys and Questionnaires; Humans; Health behavior; Behavior Change; Nudging

Diet is important in prevention and management of non-communicable disease particular, cardiovascular disease. Recently, more hospitals gear towards healthier dietary policies, however, a tool to assess the effect these interventions patient populations currently lacking. The Theory Planned Behavior (TPB) generally used health-related behavior offers framework for development questionnaires. In this study, we aim evaluate reliability, internal consistency preliminary construct validity newly developed Dietary Intention Evaluation Tool In-hospital patients (DIETI) which based on TPB.An expert panel constructed item list DIETI. A total 312 admitted cardiology ward filled out Explanatory- confirmatory factor analysis showed that our adequately discerns five TPB-consistent factors regarding healthy diet hospitalized patients. (N = 312, CFA model χ2 313.072 (df 160, p < 0.001, CFI 0.939, RMSEA 0.058). Subsequent reliability satisfactory strong questionnaire as whole all subscales (Cronbach's alpha ranging between 0.65 0.88).We conclude DIETI an internally reliable behavioral intentions in-hospital Thus, can be aimed at