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Updated: Nov 19, 2025

Establishing a Competing Risk Regression Nomogram Model for Survival Data
Published on: October 23, 2020
Statistical data analysis of risk factor associated with mortality rate by COVID-19 pandemic in India
Bijay Halder1, Jatisankar Bandyopadhyay1,2, Papiya Banik3
1Department of Remote Sensing and GIS, Vidyasagar University, Midnapore, India.
Insights
This study analyzes COVID-19 mortality and recovery rates in India during lockdown phases. It found a significant increase in mortality during the third lockdown phase, despite rising infections.
Area of Science:
- Epidemiology
- Public Health
Background:
- COVID-19, caused by SARS-CoV-2, emerged in Wuhan, China, in December 2019.
- The pandemic has had severe global economic and lifestyle impacts.
- Initial efforts to control the virus and develop vaccines have faced challenges.
Purpose of the Study:
- To analyze COVID-19 mortality and recovery rates in India during the fourth phase of lockdown.
- To examine the relationship between active cases, deaths, and recoveries.
- To assess the impact of lockdown phases on mortality rates.
Main Methods:
- Statistical analysis of COVID-19 data in India.
- Correlation analysis between active cases, deaths, and recoveries (R² values provided).
- Examination of mortality rates across different lockdown phases.
Main Results:
- A strong correlation was observed between active cases and deaths (R² = 0.8754).
- A high correlation was found between active cases and recoveries (R² = 0.9246).
- Mortality rates varied significantly, with a low rate before lockdown (0.129%) and a high rate during the third phase (43.496%).
Conclusions:
- The study highlights the dynamic nature of COVID-19 spread and its impact on mortality.
- Lockdown phases demonstrated a significant influence on the disease's mortality rate in India.
- Continued monitoring and analysis are crucial for effective pandemic management.
Abstract:
The coronavirus is an infection caused by severe acute respiratory syndrome (SARS) coronavirus, known as SARS-CoV-2. It was first determined in Wuhan, China in December 2019. WHO named this virus as COVID-19. Virologist says that COVID-19 is similar to SARS and MARS virus. This deadly disease affected worldwide economically, hammering people lifestyle and also the environmental condition. After a few months, there is no vaccine to build the barricade between this virus and life. Many countries have tried to improve the methodology to control the disease and also the actual vaccine for coronavirus but not yet successful. Rapid testing, quarantine and social distancing slow down the social and economic movement. Although India, as one of the largest populated country, takes some respectable initiative after the pandemic of the novel coronavirus. According to WHO 24th May 2020 report, total 131,868 confirmed cases and killed over 3867 people by this COVID-19 pandemic. Indian government takes the initiative like janta curfew, lockdown all over the country. The main focus or aim of this study is to find the mortality rate and the recovered people at the fourth phase of lockdown, but the infected graph is daily increased in India. In the relation between active cases and the death cases, the R 2 value is 0.8754. The relation between active cases and the recoveries, the R 2 value is 0.9246. In between 116 days, the mortality rate is less in before lockdown (0.129%) and third phase lockdown is facing a huge mortality rate (43.496%).
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