RECOVER Query Report: Pre-existing Chronic Conditions

The overall goal is to identify the relative risk of developing PASC for patients with three specific pre-existing chronic conditions. Here, Obstructive Sleep Apnea (OSA) and Multiple Sclerosis (MS) are each defined by diagnosis codes, while Diabetes Melitus (DM) is defined by a combination of diagnosis codes and Hemoglobin A1c levels. In order to investigate the confounding effect of obesity (OB), we further defined obesity with a combination of diagnosis codes and observed BMI data. These pre-existing conditions showed increased odds ratios for developing PASC. Of the four, OSA had the highest adjusted odds ratio, followed by MS. The odds ratio for DM was small, with obesity having a stronger correlation to PASC than diabetes.