EVALUATION OF PARAMETRIC MODELS BY THE PREDICTION ERROR IN COLORECTAL CANCER SURVIVAL ANALYSIS

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.

BAGHESTANI AHMAD REZA; GOHARI MAHMOOD REZA; OROOJI AREZOO; POURHOSEINGHOLI MOHAMAD AMIN; ZALI MOHAMMAD REZA

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

Journal Paper

Paper Information

Journal: Gastroenterology and Hepatology From Bed to Bench Year:2015 | Volume:8 | Issue:3 Page(s): 183-187

Download Full-Text

View:

323

Download:

135

Cites:

Information Journal Paper

Title

EVALUATION OF PARAMETRIC MODELS BY THE PREDICTION ERROR IN COLORECTAL CANCER SURVIVAL ANALYSIS

Author(s)

Keywords

PARAMETRIC MODEL

PREDICTION ERROR

APPARENT LOSS

COLORECTAL CANCER

Abstract

Aim: The aim of this study is to determine the factors influencing predicted survival time for patients with COLORECTAL CANCER (CRC) using PARAMETRIC MODELs and select the best model by predicting error’s technique.Background: Survival models are statistical techniques to estimate or predict the overall time up to specific events.Prediction is important in medical science and the accuracy of prediction is determined by a measurement, generally based on loss functions, called PREDICTION ERROR.Patients and methods: A total of 600 COLORECTAL CANCER patients who admitted to the Cancer Registry Center of Gastroenterology and Liver Disease Research Center, Taleghani Hospital, Tehran, were followed at least for 5 years and have completed selected information for this study. Body Mass Index (BMI), Sex, family history of CRC, tumor site, stage of disease and histology of tumor included in the analysis. The survival time was compared by the Log-rank test and multivariate analysis was carried out using PARAMETRIC MODELs including Log normal, Weibull and Log logistic regression. For selecting the best model, the PREDICTION ERROR by APPARENT LOSS was used.Results: Log rank test showed a better survival for females, BMI more than 25, patients with early stage at diagnosis and patients with colon tumor site. PREDICTION ERROR by APPARENT LOSS was estimated and indicated that Weibull model was the best one for multivariate analysis. BMI and Stage were independent prognostic factors, according to Weibull model.Conclusion: In this study, according to PREDICTION ERROR Weibull regression showed a better fit. PREDICTION ERROR would be a criterion to select the best model with the ability to make predictions of prognostic factors in survival analysis.

Cites

References

No record.

Cite

APA: Copy

BAGHESTANI, AHMAD REZA, GOHARI, MAHMOOD REZA, OROOJI, AREZOO, POURHOSEINGHOLI, MOHAMAD AMIN, & ZALI, MOHAMMAD REZA. (2015). EVALUATION OF PARAMETRIC MODELS BY THE PREDICTION ERROR IN COLORECTAL CANCER SURVIVAL ANALYSIS. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH, 8(3), 183-187. SID. https://sid.ir/paper/324651/en

Vancouver: Copy

BAGHESTANI AHMAD REZA, GOHARI MAHMOOD REZA, OROOJI AREZOO, POURHOSEINGHOLI MOHAMAD AMIN, ZALI MOHAMMAD REZA. EVALUATION OF PARAMETRIC MODELS BY THE PREDICTION ERROR IN COLORECTAL CANCER SURVIVAL ANALYSIS. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH[Internet]. 2015;8(3):183-187. Available from: https://sid.ir/paper/324651/en

IEEE: Copy

AHMAD REZA BAGHESTANI, MAHMOOD REZA GOHARI, AREZOO OROOJI, MOHAMAD AMIN POURHOSEINGHOLI, and MOHAMMAD REZA ZALI, “EVALUATION OF PARAMETRIC MODELS BY THE PREDICTION ERROR IN COLORECTAL CANCER SURVIVAL ANALYSIS,” GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH, vol. 8, no. 3, pp. 183–187, 2015, [Online]. Available: https://sid.ir/paper/324651/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops