Testosterone Deficiency: A Review and Comparison of Current Guidelines
Bibliographic record
Abstract
BACKGROUND: There is much controversy regarding the appropriate evaluation and management of testosterone deficiency (TD). AIM: To compare current guidelines on the evaluation and management of TD to provide clarity for patients and clinicians, as well as to highlight areas of controversy. METHODS: A literature search of MEDLINE, Embase, Cochrane Library, and various association websites was performed to identify guidelines for TD. OUTCOMES: Key aspects in the approach were compared, with a focus on the biochemical definition (cutoff) for low testosterone (T), principles of management, and recommendations for testosterone therapy (TTh) in special patient populations. RESULTS: Guidelines from the Canadian Medical Association Journal, American Urological Association, European Association of Urology, Endocrine Society, International Society for Sexual Medicine, and British Society for Sexual Medicine were included for review. Recommendations were generally consistent across guidelines. Key differences include the biochemical cutoff for low T, and recommendations for patients with low to normal T, prostate cancer, or cardiovascular disease. We highlight several case scenarios in which management differs depending on the guideline adopted. CLINICAL IMPLICATIONS: Although general diagnostic and management principles are in agreement across the guidelines, notable differences may impact patient diagnosis and eligibility for TTh. STRENGTHS & LIMITATIONS: Only guidelines written in English were included. The quality of the included guidelines was not evaluated, but this was beyond the scope of this review. CONCLUSION: We highlight the limitations of relying exclusively on guidelines in managing patients with TD. Kwong JCC, Krakowsky Y, Grober E. Testosterone Deficiency: A Review and Comparison of Current Guidelines. J Sex Med 2019;16:812-820.
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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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.005 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".