Staged Nutrition And Activity Counseling (SNAC)
Bibliographic record
Abstract
Purpose High-normal blood pressure (HNBP) and impaired glucose tolerance (IGT) place individuals at risk for development of hypertension and Type 2 diabetes. SNAC is a 12-month, cluster-randomized clinical trial comparing prescribed lifestyle counseling vs usual care delivered by family physicians on markers of cardiovascular risk among patients with HNBP and/or IGT. We describe preliminary 8-week changes in fitness, dietary consumption, clinical markers and stage of behavior change. Methods SNAC is a tailored, stage-based counseling prescription that matches fitness and dietary behavior change (ie 0 = precontemplation; 4 = maintenance) through adoption of regular exercise and consumption of a Mediterranean diet (with emphasis on grains, change to monosaturate fats, fruits, vegetables and fish). 160 patients with HNBP (130–139mmHg systolic blood pressure and/or 85–89mmHg diastolic blood pressure) and/or IGT (fasting glucose 6.1–6.9 mmol/l) were randomized by practice to SNAC or usual care lifestyle counseling in 16 suburban and rural family practices. Outcomes-Fitness (predicted VO2max), BMI, blood pressure, calories (total, and composition), stage of change for physical activity and Mediterranean diet. Differences within subjects were determined using two-sided paired t-tests with significance set at 95% using SPSS. Results A preliminary sample of 26 patients, age 53 (8) y in the SNAC group showed statistically significant improvement in fitness, BMI, diastolic blood pressure, consumption of monosaturates and total calories, and stage of change for diet (Table 1).TableConclusions These preliminary results show SNAC improved target fitness, diet and behavior outcomes with concomitant improvement in BMI, weight and blood pressure. Further assessment will determine if these changes are sustainable and significantly better than usual care lifestyle counseling in a larger cohort of primary care patients.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".