The changing demographics of new HIV diagnoses at a London centre from 1994 to 2000
Bibliographic record
Abstract
OBJECTIVE: To document the demographic changes in new HIV diagnoses at the Royal Free Hospital, London, UK, between 1994 and 2000. DESIGN: Retrospective case note review. METHODS: Data were extracted from the Royal Free HIV database identifying new diagnoses for 1994, 1997 and 2000. All case notes were reviewed and patients were included if they had their first positive HIV test at the Royal Free Hospital, or if they first tested positive elsewhere and attended the Royal Free HIV unit for their initial HIV care. Data extracted included sex, ethnicity, age, risk factor(s) for HIV, reason for test, clinical stage of disease, CD4 count and HIV RNA viral load at diagnosis. RESULTS: One hundred and forty-four patients were identified for 1994, 136 for 1997 and 110 for 2000. Over this time period the proportion of white patients dropped from 72% (n = 104) to 48% (n = 53), P = 0.0001, whilst the proportion of black Africans rose from 24% (n = 34) to 45% (n = 49), P = 0.0004. The median CD4 count at diagnosis of the white cohort was 475 cells/microL in 1994 and 286/microL in 2000, P = 0.005, whilst in the black African patients it was 240/microL and 230/microL for the same years. CONCLUSIONS: There has been a reduction in new HIV diagnoses among the white population and a rise in the black Africans at this centre between 1994 and 2000. The clinical and immunological parameters of HIV disease have worsened over this time period for the white group, but have remained stable in the black Africans.
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 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 | 0.000 | 0.001 |
| 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) | 0.009 | 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".