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Cohort Study Analysis with a FORTRAN Computer Program
Abstract
We describe the analysis of cohort study data with a standard FORTRAN program which should run on most computers. It provides a summary measure of the mortality (or incidence) rate ratio between the study cohort and some standard population, based either on person-years at risk or on proportional mortality, and adjusted for age, sex and calendar period; a test of the statistical significance of the ratio; and a set of observed death rates in the study cohort. Results may also be produced in a form suitable for use with GLIM. The analysis may be subdivided into a range of time intervals since each subject was first exposed to risk. The program provides for movement of subjects between different 'level-of-exposure' subgroups within the cohort, and for various methods of censoring. It allows considerable flexibility in data management, and is available with complete documentation and a worked example. The program should enable epidemiologists with little computing experience to carry out formal analysis of cohort studies.
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Citations
Cited by
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Self-citationLong-term survival after first-ever stroke: the Oxfordshire Community Stroke Project.
Dennis, M. S., Burn, J. P., Sandercock, P. A., Bamford, J. M., Wade, D. T., & Warlow, C. P. (1993) · Stroke · doi:10.1161/01.str.24.6.796 · Cited by 567
Neil, A., Cooper, J., Betteridge, J., Capps, N., McDowell, I., Durrington, P., Seed, M., Humphries, S. E., & on behalf of the Simon Broome Familial Hyperlipidaemia Register Group (2008) · European Heart Journal · doi:10.1093/eurheartj/ehn422 · Cited by 425
“The analysis was undertaken using a computer program for cohort studies that applies standard methods.(15) Person-years of risk were accumulated within 5 year age groups and 5 year calendar periods to estimate the expected number of deaths from specified causes.”
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Metadata
- Authors
- COLEMAN, M., DOUGLAS, A., HERMON, C., & PETO, J.
- Venue
- International Journal of Epidemiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1986-03-01
- Volume
- 15
- Issue
- 1
- Pages
- 134-137
- ISSN
- 0300-5771 (ISSN-L)
- 1464-3685
- OpenAlex
- W2160479411
- Cited by
- 249
- References
- 0
- FWCI
- 12.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Cohort Study Analysis with a FORTRAN Computer Program. https://app.cochat.ai/papers/10.1093/ije/15.1.134
- The paper
- COLEMAN, M., DOUGLAS, A., HERMON, C., & PETO, J. (1986). Cohort Study Analysis with a FORTRAN Computer Program. International Journal of Epidemiology. https://doi.org/10.1093/ije/15.1.134
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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