ABSTRACT
Introduction: Gastrointestinal symptomatology in SARS-CoV-2 infection is a common clinical presentation, reported in up to 61% in those affected, being the presence of acute diarrhea one of the most common symptoms, reported in up to 33.7%. There are multiple theories about physiopathological mechanisms of diarrhea associated with SARS-CoV2 infection, but there is not enough evidence to attribute this symptom only to the infection without the influence of host and environment factors. Objective: Determine the associated factors with acute diarrhea in Mexican population with SARS-CoV-2 infection. Methods: A case-control cross-sectional study was performed to analyze the factors associated with acute diarrhea in patients with SARS-CoV-2. This research was carried out during the 2020-2021 in five states of Mexico. An online survey was applied to 784 patients, selected by randomized sampling of whom sociodemographic data, medical history, and symptoms related to SARSCoV- 2 infection were collected. A univariate and multivariate logistic regression analysis was performed applying a χ2 test with 95% confidence intervals to determinate the association of acute diarrhea in SARS-CoV-2 infection with other symptomatology and possible nonhost contributing factors for its presentation. Results: A total of 784 patients were analyzed with a mean age of 29 ± 8 years, predominantly female with 75.4% (591). The most frequently described symptom was fatigue in 75% (588) followed by anosmia and myalgias with 67% (525) and 65.5% (514) respectively. Acute diarrhea was present in 28.6% (321) of our population during the acute phase of SARS-CoV-2 infection. The most used drugs were acetaminophen (79.2%) and azithromycin (29.7%). The multivariate logistic regression analysis showed a statistically significant association between acute diarrhea and the use of macrolides, mainly with clarithromycin with an OR of 2.96 (95% CI of 1.26-6.95, p = 0.001) followed by azithromycin with an OR of 1.47 (95% CI 1.035-2.091, p = 0.031). In this same analysis, there was no significant association of acute diarrhea with the rest of SARS-CoV-2 infection symptoms. Discussion: This study demonstrates the association of acute diarrhea in SARS-CoV-2 infection with the concomitant use of macrolides, without finding any association with described SARS-CoV-2 viral symptoms. According to the previously mentioned, we propose that a proportion of acute diarrhea associated with SARSCoV- 2 infection may be secondary to inappropriate macrolide prescription and not due to the viral disease itself.