Research Methods: Risk Ratio Estimation in Longitudinal Studies

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Talebi Seyedeh Solmaz; MOHAMMAD KAZEM; RASEKHI ALIAKBAR; MANSOURNIA MOHAMMAD ALI

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: ARCHIVES OF IRANIAN MEDICINE Year:2019 | Volume:22 | Issue:1 Page(s): 46-49

Download Full-Text

View:

276

Download:

110

Cites:

Information Journal Paper

Title

Research Methods: Risk Ratio Estimation in Longitudinal Studies

Author(s)

Talebi Seyedeh Solmaz | MOHAMMAD KAZEM | RASEKHI ALIAKBAR | MANSOURNIA MOHAMMAD ALI | Issue Writer Certificate

Keywords

COPY method

Generalized estimation equations

Longitudinal data

Modified log-Poisson regression

Risk ratio

Abstract

Longitudinal studies are very common in medical, behavioral, and interventional sciences. One measure of effect of interest in longitudinal studies is Risk ratio, naturally estimated by log-binomial regression which suffers from convergence problems. Odds ratio (OR) does not approximate Risk ratio (RR) well when the outcome is common, so alternative methods have been introduced in cohort studies with one follow-up visit. In this paper, we illustrate two simple methods: the COPY method and the Modified log-Poisson regression for RR estimation in Longitudinal data setting. Our unpublished simulation study on RR estimation in Longitudinal data setting suggests that the COPY method performs well in terms of closeness of the RR estimate and true RR (mean square error) and so we suggest this method for RR estimation in Longitudinal data setting.

Cites

No record.

References

Cite

APA: Copy

Talebi, Seyedeh Solmaz, MOHAMMAD, KAZEM, RASEKHI, ALIAKBAR, & MANSOURNIA, MOHAMMAD ALI. (2019). Research Methods: Risk Ratio Estimation in Longitudinal Studies. ARCHIVES OF IRANIAN MEDICINE, 22(1), 46-49. SID. https://sid.ir/paper/281766/en

Vancouver: Copy

Talebi Seyedeh Solmaz, MOHAMMAD KAZEM, RASEKHI ALIAKBAR, MANSOURNIA MOHAMMAD ALI. Research Methods: Risk Ratio Estimation in Longitudinal Studies. ARCHIVES OF IRANIAN MEDICINE[Internet]. 2019;22(1):46-49. Available from: https://sid.ir/paper/281766/en

IEEE: Copy

Seyedeh Solmaz Talebi, KAZEM MOHAMMAD, ALIAKBAR RASEKHI, and MOHAMMAD ALI MANSOURNIA, “Research Methods: Risk Ratio Estimation in Longitudinal Studies,” ARCHIVES OF IRANIAN MEDICINE, vol. 22, no. 1, pp. 46–49, 2019, [Online]. Available: https://sid.ir/paper/281766/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops