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Record W4381733471 · doi:10.21203/rs.3.rs-3084278/v1

A 52-week fresh food prescribing program reduces food insecurity and improves fruit and vegetable consumption in Ontario, Canada

2023· preprint· en· W4381733471 on OpenAlexafffundabout
Matthew Little, Warren Dodd, Ashmita Grewal, Eleah Stringer, Abby Richter

Bibliographic record

VenueResearch Square · 2023
Typepreprint
Languageen
FieldHealth Professions
TopicFood Security and Health in Diverse Populations
Canadian institutionsUniversity of WaterlooUniversity of Victoria
FundersCanadian Institutes of Health ResearchMitacs
KeywordsEnvironmental healthMedicineFood securityFood insecurityConsumption (sociology)Context (archaeology)Medical prescriptionMicronutrientGeography

Abstract

fetched live from OpenAlex

Abstract Background: Food insecurity is linked with suboptimal diet and comprises an important risk factor for nutrition-related chronic diseases. Fruit and vegetable prescription programs are designed to improve access to healthy foods, but there is limited evidence on the impacts of such programs in the Canadian context. The objective of this study was to assess changes in food security, food consumption, and health among adult participants of a fresh food prescribing program in Guelph, Ontario, Canada. Methods: A total of 57 food insecure individuals with ≥ 1 cardio-metabolic condition or micronutrient deficiency received fresh food prescriptions from their healthcare practitioner and received weekly vouchers for an online produce market. We used a single-arm repeated-measures evaluation and paired t-tests to assess changes in food security, food intake, self-reported health, and blood biomarkers of cardio-metabolic, and nutritional health. Linear regression models were used to assess factors associated with change in fruit and vegetable consumption and voucher usage. Results: Food insecurity improved following the proportion of participants classified as severely food insecure fell from 47.4–24.5%. Consumption of fruit, dark green vegetables, orange vegetables, and other vegetables increased during the intervention (p < 0.05). Mean fasting insulin and ascorbic acid levels improved (p < 0.05). Worse food insecurity and lower fruit and vegetable consumption at baseline, as well as more frequent interaction with healthcare providers, were associated with a greater increase in fruit and vegetable consumption from pre- to post-intervention (p < 0.05). Conclusions: Fruit and vegetable prescription programs may improve food security and increase fruit and vegetable consumption, but further research is needed to determine their long-term health impacts.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.003
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Research integrity
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.026
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.000
Science and technology studies0.0020.000
Scholarly communication0.0000.000
Open science0.0000.002
Research integrity0.0010.007
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.408
GPT teacher head0.489
Teacher spread0.081 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations4
Published2023
Admission routes3
Has abstractyes

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