The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Statistical analysis of the stages of HIV infection using a Markov model
Abstract
We use a staged Markov model to estimate the distribution and mean length of the incubation period for acquired immunodeficiency syndrome (AIDS) from a cohort of 603 human immunodeficiency virus (HIV) infected individuals who have been followed through various stages of infection. The model partitions the infected period into four progressive stages: (1) infected but antibody‐negative; (2) antibody‐positive but asymptomatic; (3) pre‐AIDS symptoms and/or abnormal haematologic indicator; and (4) clinical AIDS. We also model a fifth stage: death due to AIDS. The estimated mean (median) waiting times in each stage of infection are stage 1, 2·2 (1·5) months; stage 2, 52·6 (36·5) months; stage 3, 62·9 (43·6) months; and stage 4, 23·6 (16·3) months. We estimate the mean AIDS incubation period (from infection to development of clinical AIDS) as 9·8 years with a 95 per cent confidence interval of [8·4, 11·2] years. The paper also considers the estimated density function of the AIDS incubation period and the estimated survival functions for individuals in each stage of infection. This work represents one of the most complete statistical descriptions to date of the natural history of HIV infection.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
The Statistical Analysis of Failure Time Data.
Aitkin, M., Kalbfleisch, J. D., & Prentice, R. L. (1981) · Biometrics · doi:10.2307/2530581 · Cited by 9,877
Morbidity and mortality weekly report
(1997) · The American Journal of Medicine · doi:10.1016/s0002-9343(97)89440-5 · Cited by 4,684
Transmission dynamics of HIV infection
May, R. M., & Anderson, R. M. (1987) · Nature · doi:10.1038/326137a0 · Cited by 766
ACUTE AIDS RETROVIRUS INFECTION
Cooper, D., Maclean, P., Finlayson, R., Michelmore, H., Gold, J., Donovan, B., Barnes, T., Brooke, P., & Penny, R. (1985) · The Lancet · doi:10.1016/s0140-6736(85)91205-x · Cited by 709
The invasion, persistence and spread of infectious diseases within animal and plant communities
Anderson, R. M., & May, R. M. (1986) · Philosophical Transactions of the Royal Society of London. B, Biological Sciences · doi:10.1098/rstb.1986.0072 · Cited by 695
Goudsmit, J., Paul, D., Lange, J. A., Speelman, H., Van Der Noordaa, J., Van Der Helm, H., De Wolf, F., Epstein, L., Krone, W. A., Wolters, E., et al. (1986) · The Lancet · doi:10.1016/s0140-6736(86)92485-2 · Cited by 512
ANDERSON, R. M., MEDLEY, G. F., MAY, R. M., & JOHNSON, A. M. (1986) · Mathematical Medicine and Biology · doi:10.1093/imammb/3.4.229 · Cited by 499
Survival with the Acquired Immunodeficiency Syndrome
Rothenberg, R., Woelfel, M., Stoneburner, R., Milberg, J., Parker, R., & Truman, B. (1987) · New England Journal of Medicine · doi:10.1056/nejm198711193172101 · Cited by 474
Experimental Survival Curves for Interval-Censored Data
Peto, R. (1973) · Applied Statistics · doi:10.2307/2346307 · Cited by 345
Ranki, A., Krohn, M., Allain, J.-P., Franchini, G., Valle, S.-L., Antonen, J., Leuther, M., & Krohn, K. (1987) · The Lancet · doi:10.1016/s0140-6736(87)92985-0 · Cited by 342
Cited by
Corpechot, C., Carrat, F., Bonnand, A.-M., Poupon, R. E., & Poupon, R. (2000) · Hepatology · doi:10.1053/jhep.2000.20240 · Cited by 316
Metadata
- Authors
- Longini, I. M., Clark, W. S., Byers, R. H., Ward, J. W., Darrow, W. W., Lemp, G. F., & Hethcote, H. W.
- Venue
- Statistics in Medicine
- Publisher
- Wiley
- Published
- 1989-07
- Volume
- 8
- Issue
- 7
- Pages
- 831-843
- ISSN
- 0277-6715 (ISSN-L)
- 1097-0258
- OpenAlex
- W2169975204
- Cited by
- 304
- References
- 26
- FWCI
- 16.31
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Statistical analysis of the stages of HIV infection using a Markov model. https://app.cochat.ai/papers/10.1002/sim.4780080708
- The paper
- Longini, I. M., Clark, W. S., Byers, R. H., Ward, J. W., Darrow, W. W., Lemp, G. F., & Hethcote, H. W. (1989). Statistical analysis of the stages of HIV infection using a Markov model. Statistics in Medicine. https://doi.org/10.1002/sim.4780080708
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.