Quantitative analyses
The quantitative analysis consisted of descriptive statistics and model
prediction using inferential statistics and machine learning
computations. The descriptive and inferential analyses were performed
using the Statistical Analysis Software (SAS) Enterprise and the ML
computations were conducted using the SAS Enterprise Miner.
The descriptive analyses included identification of member counts
(percent) for demographic parameters, co-morbid history, and incident
COVID-19 and AF conditions (with the exception of mean (SD) for age as a
continuous variable). The outcome (i.e., COVID-19 or AF) and input
(i.e., co-morbid history) variables had binary representations.