Survival and Hospital Stay Characteristics of COVID-19 Patients in Karnataka, India
Keywords:COVID 19, Pandemic, Survival
The rapid transmission of this virus from human to human made the World Health Organization (WHO) to
declare this as the public health emergency of international concern and called it as global pandemic. As on
July 21, 2020, globally 14562550 COVID-19 cases have been reported and caused 607781 deaths.2
The first case of the COVID-19 pandemic in India was reported on 30 January 2020. As on 22 July 2020,
the MOHFW, Government of India has reported 411133 confirmed cases from 33 states with 28732 deaths
and 753049 cured/discharged.
The case fatality rate was 1.9% and the recovery rate was 98.1% Following the test positivity, the mean
length of stay among COVID?19 patients with definitive outcomes was 15.41 days COVID?19 cases with
SARI at the time of admission and those with travel history had significantly lower length of hospital stay
as compared to their counterparts. There was no difference in the length of hospital stay by gender and
age .Among those without definitive outcomes (245/3162), the length of stay in the hospital following test
positivity ranged from 40 to 114 days.
The Kaplan–Meier analysis showed an overall survival rate of 98.8% at 7 days and
98.1% at 14 days. The survival probability at 21 days is 98.5%.COVID?19 cases who were ? 60 years and
who have presented with SARI had significantly higher risk of mortality when compared to the counterparts
(p<0.001). However, the risk of mortality did not differ much among male and female COVID?19 patient
Having SARI at the time of admission (adjusted hazard ratio: 0.07 (0.04-0.14); P <
0.001), being aged ? 60 years (adjusted hazard ratio: 0.2 (0.1-0.3); P < 0.001) and having travel history
(adjusted hazard ratio: 3.7 (1.7-8.2); P < 0.001) were the significant predictors of mortality .