Survival Analysis Based on Average Response Time of Maritime Search and Rescue (SAR) Incidents in 2019 Using Kaplan-Meier Method and Log-Rank Test

Muhammad Hasan Sidiq Kurniawan, Duhania Oktasya Mahara


Indonesia is the largest archipelagic country in the world (based on area and population), which makes it as one of countries with the most significant maritime activities. Therefore, there has been a high rate of maritime accidents in Indonesia. The National Search and Rescue Agency (BASARNAS) as a non-ministerial government agency with the primary task of Search and Rescue (SAR) operation deals with several types of accidents, including maritime accidents. Response time as the time to receive news about the accidents until the SAR unit comes to the rescue is very crucial in this matter. Average response time is stipulated based on BASARNAS’s regulations to estimate information about the survival probability of the victims. This research concerns with the survival analysis using Kaplan-Meier Method and Log-Rank Test. The researchers categorized maritime accidents into three categories: ‘Low’, ‘Medium’, and ‘High’. This classification aims to find out whether the survival function of each category has the same or different function and to investigate whether there are differences from the given responses or not. The survival analysis with Kaplan-Meier method revealed that the three categories had different survival functions. The survival analysis was followed by a Log-Rank Test. The final result shows that there is no difference in the responses given by the three categories when maritime accidents occur.


Received February 10, 2021
Revised March 29, 2021
Accepted March 29, 2021

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Collett, D. (2003). Modelling Survival Data in Medical Research. Chapman & Hall/CRC: USA.

Cook, A. (2008). Kaplan Meier Estimate of S(t). Singapore: National University of Singapore.

G.Kleinbaum, D., & Klein, M. (2012). Survival Analysis : A Self-Learning Text. London: Springer.

Lawless, J. (2003). Statistical Models and Methods for Lifetime Data. New York: John Wiley and Sons.

Moeschberger, J. P. (2003). Survival Analysis Techniques for Censored and Truncated Data. New York: Springer Science and Bussiness Media.

Roza, E. (2017, September 01). Artikel Kementerian Kelautan dan Perikanan Republik Indonesia. Retrieved from Kementerian Kelautan dan Perikanan Republik Indonesia:

Wikipedia. (2020, March 14). Indonesia. Retrieved from Wikipedia:

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ENTHUSIASTIC: International Journal of Applied Statistics and Data Science

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