Keyphrases
In-hospital Death
100%
Hospital Admission
100%
Electronic Health Records
100%
COVID-19
100%
Target Trial
100%
Emulation
100%
Nirmatrelvir
100%
Admission to Hospital
41%
SARS-CoV-2 Infection
41%
Admission-to-death
41%
Relative Risk
25%
Risk Reduction
25%
Absolute Risk Reduction
25%
Risk Factors
16%
Confidence Interval
16%
Two-dose
16%
Severe Disease
16%
One Dose
16%
SARS-CoV-2 Virus
16%
Severe COVID-19
16%
SARS-CoV-2 Reinfection
16%
United States Department of Veterans Affairs
8%
Illness
8%
Vaccination Status
8%
Healthcare Database
8%
Cumulative Incidence
8%
Positive Check
8%
Weighting Method
8%
Health Traits
8%
Inverse Probability Weighting
8%
Personal Characteristics
8%
Booster Dose
8%
COVID-19 Disease
8%
SARS-CoV-2 Test
8%
Vaccine Booster
8%
Omicron BA.2
8%
Omicron BA.1
8%
BA.5
8%
Booster Vaccine
8%
Vaccination History
8%
Weighted Kaplan-Meier Test
8%
Pharmacology, Toxicology and Pharmaceutical Science
Nirmatrelvir
100%
SARS Coronavirus
83%
Infection
41%
Diseases
33%
Reinfection
16%