Table 2.

Summary of the main findings of the studies included in the systematic review.

First Author, Year	Main Findings
Li et al., 2021 [10]	Forty-five (25%) patients presented with menstrual volume changes and fifty (28%) patients had menstrual cycle changes, mainly concerning decreased volume (20%) and a prolonged cycle (19%); severely ill patients had more comorbidities than mildly ill patients (34% versus 8%).
Khan et al., 2021 [12]	People that reported changes in their menstrual cycle after SARS-CoV-2 infection reported more COVID-19 symptoms than those that did not. The mean age (30.5 vs. 30.6) and the mean BMI (28.1 vs. 27.0) of the two groups were similar. The percentage of patients of Hispanic ethnicity was higher among the patients that had reported menstrual cycle changes (50% vs. 24.3%).
Ding et al., 2021 [11]	Menstrual status (p = 0.55), menstrual volume (p = 0.066), phase of menstrual cycle (p = 0.58), and dysmenorrhea history (p = 0.12) were similar without significant differences between non-severe and severe COVID-19 women