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Monitoring and Surveillance of COVID-19 Survival and Stay Characteristics: A Need for Hospital Preparedness in India

Published online by Cambridge University Press:  20 August 2020

Ajit Deo Burma
Affiliation:
Department of Epidemiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India
Vinayak Mishra
Affiliation:
Department of Epidemiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India
Sumit Kumar Das
Affiliation:
Department of Biostatistics, National Institute of Mental Health And Neuro Sciences, Bangalore, India
Mohana Balan Parivallal
Affiliation:
Department of Epidemiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India
Senthil Amudhan*
Affiliation:
Department of Epidemiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India
Girish N. Rao
Affiliation:
Department of Epidemiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India
*
Correspondence and reprint requests to Senthil Amudhan, Department of Epidemiology, 212 Dr MVG Building, NIMHANS-560029, Bangalore, India (e-mail: [email protected]).
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Abstract

Type
Letter to the Editor
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© Society for Disaster Medicine and Public Health, Inc. 2020

As coronavirus disease (COVID-19) is unfolding rapidly with a huge surge after the relaxation of lockdown measures, hospital preparedness becomes crucial for the management of the COVID-19 pandemic in India. For a country like India where 17% of the global population resides in 2.4% of the total global land area, focusing on the descriptive statistics of COVID-19 (number of cases, deaths, and recoveries) alone will prove insufficient for planning the health-services. There is a need to move beyond the descriptive statistics and understand the survival and stay pattern of COVID-19 cases to guide policy-makers to allocate resources and plan contingencies.

In a recent study from India, Kaplan–Meier analysis showed an overall survival rate of 95.7% at day 7 and 95.5% at day 14 of admission. Reference Mishra, Burma and Das1 With no significant difference in survival rate, a cost-effective and comparative analysis on the care provided between 0‐7 and 7‐14 days of admission would have provided valuable insights on the need for hospital care after day 7 of admission. This would have great implications on the guidelines for discharge criteria, home-quarantining, and follow-up, especially when there is a huge surge in COVID-19 cases during the pandemic crisis. Contrasting with current reporting, the recent study from India reported a high recovery rate of 94.9% as it did not include all fresh cases (which are yet to have definite outcomes) in the denominator. Reference Mishra, Burma and Das1,2 We firmly assert that this strategy of recovery-rate estimation (by fixing the confirmed cases at 1 time point with subsequent follow-up till their definitive outcomes) would provide a valid estimate of COVID-19 recovery rate in India.

Unlike the hospitalization rate that can be modeled, estimating length of stay (LOS) requires observation and reporting of individually hospitalized patients. Reference Rees, Nightingale and Jafari3 It can be noted that patient characteristics like severity and so forth had influenced the LOS and those with a severe disease had a shorter LOS. Reference Mishra, Burma and Das1 This may imply that severely affected patients follow an acute course of treatment with a short preclinical phase (from disease onset to symptoms) or possibly a delay in seeking appropriate care. Reference Gordis and Gordis4 Though the former is non-modifiable relating to the nature of the disease, the latter can be prevented by timely testing, contact-tracing and risk-profiling. Though challenging, this will be crucial for the preservation of the intensive care unit (ICU) capacity. Given the inherent difficulty and absence of data, most studies from India did not report on the LOS in the ICU to provide better insights on the intensive care needs of COVID-19 patients.

As the COVID-19 pandemic is progressing, the stay and survival characteristics may change because of change in disease characteristics or change in admission/discharge criteria. Ideally, the requirement for hospital resources is planned based on data from the local setting because the age structure, COVID-19 hotspots, and hospital beds are not uniform across the country. 5 LOS is often not recorded in local reporting or monitoring. Despite its challenges, at least information on LOS by type of care (general ward, dependency unit, and ICU) would make hospital preparedness planning more realistic/pragmatic. This also underscores the need for strengthening the surveillance and monitoring of COVID-19 survival and stay characteristics at various levels of care (primary, secondary, tertiary) to provide timely inputs for a dynamic and iterative hospital preparedness plan at the state and district levels. This will ensure timely redistribution of resources for optimal COVID-19 care in the community – definitely a need of the hour.

Conflict of Interest Statement

The authors have no conflicts of interest to declare.

References

REFERENCES

Mishra, V, Burma, AD, Das, SK, et al. COVID-19-hospitalized patients in Karnataka: survival and stay characteristics. Indian J Public Health. 2020;64:S221-S224.Google ScholarPubMed
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Gordis, L. The epidemiologic approach to evaluating screening programs. In: Gordis, L, ed. Epidemiology. 5th ed. Philadelphia: Elsevier Health Sciences; 2013:330-333.Google Scholar
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