Non-invasive Assessment of Diabetes from sub- Heart Rate Variability: Coherence with HbA1c Test
Bibliographic record
Abstract
Cardiac autonomic regulation reflects in heart rate variability (HRV). The dysfunction in the regulation caused by type 2 diabetes mellitus (T2DM) shows a reduction in the amplitude of HRV. Resting HRV and fasting HbA1c are recorded for six T2DM subjects. Resting HRV is recorded for fifteen control subjects. When compared to control subjects, the T2DM subjects exhibit a significantly lower low frequency (LF) power (p < 0.05) and non-significantly lower high frequency (HF) power. Compared to HF-HRV, which has a correlation coefficient of -0.4109, the LF-HRV exhibits a positive correlation with HbA1c values of 0.9027. The sub-LF-HRV (0.062-0.084 Hz) has a correlation coefficient of 0.89 with HbA1c in contrast to the rest sub-bands. Similarly, the sub-HF-HRV (0.35-0.4Hz) has a correlation coefficient of -0.4375 with HbA1c in contrast to the sub-bands. The reconstructed time domain signal shows the periodic contraction and expansion of LF and HF signals mimicking the cardiac function.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".