Development and validation of a diabetes/nutrition knowledge questionnaire in type 1 and type 2 diabetes
Authors' conclusion
We developed and validated a questionnaire encompassing diabetes and nutrition knowledge, tailored to diabetes type and treatment strategy. Psychometric analysis demonstrated robust measurement properties for assessing health literacy across diverse diabetes populations. Better nutrition knowledge was significantly linked to improved glycaemic control in type 1 diabetes, reflected by lower HbA1c and increased TIR.
Study context
- Population
- People with T1D or T2D at a Swiss tertiary centre
- Participants
- 289 vs 222
- Exposure
- Higher vs lower diabetes/nutrition knowledge scores and glucose metrics
- T1Dn = 289
- T2Dn = 222
- Outcome
- Development and validation of diabetes and nutrition knowledge questionnaires; association of diabetes-specific health literacy with glucose metrics
Methodological detailssingle-centre, Swiss tertiary centre, Rasch model, multiple linear regression
- Single-centre
- Swiss tertiary centre
- Rasch model
- Multiple linear regression
Main finding
As reported in the abstract
T1D: higher nutrition knowledge scores (≥9/10) associated with reduced HbA1c (p < 0.05)
−5 mmol/mol or −0.47%
T1D: higher nutrition knowledge scores (≥9/10) associated with increased TIR (p < 0.05)
+9.2%
Observational data: associations, not effects.
Original publication
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