Pemodelan Survival Pasien Covid-19 dengan Hazard Non-Proporsional

Rahmat Hidayat, Marwan Sam, Ridha Yulyani Wardi, M. Ishaq Iskandar

Abstract


This article compares two survival models namely Extended Cox and Stratified Cox. These two survival models are alternative models if the proportional assumption of the Cox proportional hazard model is not met. The comparison of the models was carried out using data on the resilience of Covid-19 patients in Palopo City, South Sulawesi. After modeling using the Extended Cox and Stratified Cox models, the AIC values are compared to see a better model. The results obtained indicate that modeling the resilience of Covid-19 patients in Palopo City is better by using Stratified Cox.

Keywords


Survival; Cox; Covid-19; Extended; Stratified

Full Text:

PDF

References


R. Hidayat, “Bias Comparison of Parameter Estimates in Cox Proportional Hazard and Logistic Regression,†p. 13, 2015.

G. Salinas-Escudero, M. F. Carrillo-Vega, V. Granados-García, S. Martínez-Valverde, F. Toledano-Toledano, and J. Garduño-Espinosa, “A survival analysis of COVID-19 in the Mexican population,†BMC Public Health, vol. 20, no. 1, p. 1616, Dec. 2020, doi: 10.1186/s12889-020-09721-2.

J. M. Dennis, A. P. McGovern, S. J. Vollmer, and B. A. Mateen, “Improving Survival of Critical Care Patients With Coronavirus Disease 2019 in England: A National Cohort Study, March to June 2020*,†Critical Care Medicine, vol. 49, no. 2, pp. 209–214, Feb. 2021, doi: 10.1097/CCM.0000000000004747.

R. Hidayat, H. Sumarno, and E. H. Nugrahani, “Survival Analysis in Modeling the Birth Interval of the First Child in Indonesia,†OJS, vol. 04, no. 03, pp. 198–206, 2014, doi: 10.4236/ojs.2014.43019.

D. G. Kleinbaum and M. Klein, Survival Analysis: A Self-Learning Text. New York, NY: Springer New York, 2012. doi: 10.1007/978-1-4419-6646-9.

M. Nadjib Bustan, Arman, M. K. Aidid, F. A. Gobel, and Syamsidar, “Cox Proportional Hazard Survival Analysis to Inpatient Breast Cancer Cases,†J. Phys.: Conf. Ser., vol. 1028, p. 012230, Jun. 2018, doi: 10.1088/1742-6596/1028/1/012230.

A. Neumann-Podczaska et al., “Clinical Characteristics and Survival Analysis in a Small Sample of Older COVID-19 Patients with Defined 60-Day Outcome,†IJERPH, vol. 17, no. 22, p. 8362, Nov. 2020, doi: 10.3390/ijerph17228362.

S. Narain et al., “Comparative Survival Analysis of Immunomodulatory Therapy for COVID-19 ‘Cytokine Storm’: A Retrospective Observational Cohort Study,†p. 17.

W. Lu et al., “Survival Analysis and Risk Factors in COVID-19 Patients,†Disaster med. public health prep., pp. 1–6, Mar. 2021, doi: 10.1017/dmp.2021.82.

G. Aprilicia et al., “Survival COVID-19 in Adult Patients with Liver Cirrhosis,†InaJGHE, vol. 22, no. 2, pp. 124–129, Sep. 2021, doi: 10.24871/2222021124-129.

T. Singhal, “A Review of Coronavirus Disease-2019 (COVID-19),†Indian J Pediatr, vol. 87, no. 4, pp. 281–286, Apr. 2020, doi: 10.1007/s12098-020-03263-6.

C. Lin et al., “Asymptomatic novel coronavirus pneumonia patient outside Wuhan: The value of CT images in the course of the disease,†Clinical Imaging, vol. 63, pp. 7–9, Jul. 2020, doi: 10.1016/j.clinimag.2020.02.008.

A. Di Castelnuovo et al., “Common cardiovascular risk factors and in-hospital mortality in 3,894 patients with COVID-19: survival analysis and machine learning-based findings from the multicentre Italian CORIST Study,†Nutrition, Metabolism and Cardiovascular Diseases, vol. 30, no. 11, pp. 1899–1913, Oct. 2020, doi: 10.1016/j.numecd.2020.07.031.

P. Q. Thai et al., “Factors associated with the duration of hospitalisation among COVID-19 patients in Vietnam: A survival analysis,†Epidemiol. Infect., vol. 148, p. e114, 2020, doi: 10.1017/S0950268820001259.

Y.C. Wu, C.-S. Chen, and Y.-J. Chan, “The outbreak of COVID-19: An overview,†Journal of the Chinese Medical Association, vol. 83, no. 3, pp. 217–220, Mar. 2020, doi: 10.1097/JCMA.0000000000000270.




DOI: https://doi.org/10.34312/euler.v10i1.14744

Refbacks

  • There are currently no refbacks.


Copyright (c) 2022 Rahmat Hidayat, Marwan Sam, Ridha Yulyani Wardi, M. Ishaq Iskandar

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi has been indexed by:

                         EDITORIAL OFFICE OF EULER : JURNAL ILMIAH MATEMATIKA, SAINS, DAN TEKNOLOGI

 Department of Mathematics, Faculty of Mathematics and Natural Science, Universitas Negeri Gorontalo
Jl. Prof. Dr. Ing. B. J. Habibie, Tilongkabila, Kabupaten Bone Bolango 96554, Gorontalo, Indonesia
 Email: euler@ung.ac.id
 +6287743200854 (WhatsApp Only)
 Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi (p-ISSN: 2087-9393 | e-ISSN:2776-3706) by Department of Mathematics Universitas Negeri Gorontalo is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.  Powered by Public Knowledge Project OJS.