The reliability of clinical and biochemical assessment in symptomatic late‐onset hypogonadism: can a case be made for a 3‐month therapeutic trial?
Bibliographic record
Abstract
OBJECTIVE: To assess whether testosterone (T) supplementation in men considered to have symptomatic late-onset hypogonadism (SLOH) can be evaluated clinically and biochemically. PATIENTS AND METHODS: To assess the relevance of the clinical and biochemical diagnosis of hypogonadism we investigated patients referred for the diagnosis and treatment of SLOH. Patients were assessed clinically and completed a screening questionnaire. The pituitary-adrenal-gonadal axis was comprehensively assessed biochemically. Those with a clinical diagnosis of hypogonadism and serum levels of T supporting such a diagnosis received exogenous T for >/= 3 months and were assessed for any clinical and biochemical response. Of an initial group of 45 men (mean age 59.2 years) 38 completed the study. RESULTS: Most men presented with symptoms of sexual dysfunction, lack of energy and/or depression. There were differences before and after treatment only in bioavailable T (BT), with none in the levels of total T (TT). There was a strong correlation before and after treatment in the levels of luteinizing hormone and follicle-stimulating hormone, and a weak negative correlation between gonadotrophins and BT. Neither TT nor BT had predictive value for the treatment response. There was a trend to a correlation between BT levels and treatment success. Changes in serum prostate specific antigen were insignificant during the limited period. CONCLUSION: The lack of accurate methods for diagnosing SLOH suggests that a therapeutic trial of T supplementation is warranted in men in whom there are no contraindications. The 3-month period largely circumvents the placebo effect and has minimal risks for serious adverse effects (mostly in relation to prostate safety). This controversial position needs further evaluation with a larger cohort and other biochemical measurements.
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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 | 0.034 | 0.101 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".