A simple method to calculate the confidence interval of a standardized mortality ratio (SMR)
- PMID: 2296988
- DOI: 10.1093/oxfordjournals.aje.a115507
A simple method to calculate the confidence interval of a standardized mortality ratio (SMR)
Abstract
In analyzing standardized mortality ratios (SMRs), it is of interest to calculate a confidence interval for the true SMR. The exact limits of a specific interval can be obtained by means of the Poisson distribution either within an iterative procedure or by one of the tables. The limits can be approximated in using one of various shortcut methods. In this paper, a method is described for calculating the exact limits in a simple and easy way. The method is based on the link between the chi 2 distribution and the Poisson distribution. Only a table of the chi 2 distribution is necessary.
Comment in
-
Re: "A simple method to calculate the confidence interval of a standardized mortality ratio (SMR)".Am J Epidemiol. 1992 Nov 1;136(9):1170-2. Am J Epidemiol. 1992. PMID: 1462978 No abstract available.
-
Re: "A simple method to calculate the confidence interval of a standardized mortality ratio (SMR)".Am J Epidemiol. 1991 Jan 15;133(2):212-4. doi: 10.1093/oxfordjournals.aje.a115863. Am J Epidemiol. 1991. PMID: 1985450 No abstract available.
Similar articles
-
Estimating confidence limits on a standardised mortality ratio when the expected number is not error free.J Epidemiol Community Health. 1994 Jun;48(3):313-7. doi: 10.1136/jech.48.3.313. J Epidemiol Community Health. 1994. PMID: 8051534 Free PMC article.
-
Re: "A simple method to calculate the confidence interval of a standardized mortality ratio (SMR)".Am J Epidemiol. 1991 Jan 15;133(2):212-4. doi: 10.1093/oxfordjournals.aje.a115863. Am J Epidemiol. 1991. PMID: 1985450 No abstract available.
-
[An evaluation of the statistical significance and calculation of the confidence interval for the standardized mortality ratio].Gac Sanit. 1993 Sep-Oct;7(38):237-43. doi: 10.1016/s0213-9111(93)71156-5. Gac Sanit. 1993. PMID: 8225790 Spanish.
-
A review of methodological issues of the standardized mortality ratio (SMR) in occupational cohort studies.Int J Epidemiol. 1986 Mar;15(1):8-21. doi: 10.1093/ije/15.1.8. Int J Epidemiol. 1986. PMID: 3514499 Review.
-
Confidence limits and the limits of confidence.QJM. 2000 Feb;93(2):121-4. doi: 10.1093/qjmed/93.2.121. QJM. 2000. PMID: 10700483 Review. No abstract available.
Cited by
-
High cardiovascular event rates occur within the first weeks of starting hemodialysis.Kidney Int. 2015 Nov;88(5):1117-25. doi: 10.1038/ki.2015.117. Epub 2015 Apr 29. Kidney Int. 2015. PMID: 25923984 Free PMC article.
-
The Clinical Diagnosis-Based Nationwide Epidemiology of Metabolic Dysfunction-Associated Liver Disease in Korea.J Clin Med. 2023 Dec 12;12(24):7634. doi: 10.3390/jcm12247634. J Clin Med. 2023. PMID: 38137703 Free PMC article.
-
High co-circulation of influenza and SARS-CoV-2.medRxiv [Preprint]. 2022 Sep 17:2022.09.13.22279740. doi: 10.1101/2022.09.13.22279740. medRxiv. 2022. Update in: Open Forum Infect Dis. 2022 Nov 28;9(12):ofac642. doi: 10.1093/ofid/ofac642. PMID: 36299425 Free PMC article. Updated. Preprint.
-
Age-Specific Associations Between Systolic Blood Pressure and Cardiovascular Disease: A 10-Year Diabetes Mellitus Cohort Study.J Am Heart Assoc. 2020 Jul 21;9(14):e015771. doi: 10.1161/JAHA.119.015771. Epub 2020 Jul 16. J Am Heart Assoc. 2020. PMID: 32673523 Free PMC article.
-
Variation in Post-Transplant Cancer Incidence among Italian Kidney Transplant Recipients over a 25-Year Period.Cancers (Basel). 2023 Feb 20;15(4):1347. doi: 10.3390/cancers15041347. Cancers (Basel). 2023. PMID: 36831688 Free PMC article.
MeSH terms
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical