Table 4.

Epidemiology evaluation of acute diverticulitis during COVID-19 pandemic.

Treatment	Soriano [19]	Zintsmaster [36]	Gibson [23]	Rosa [21]	McGuinness [38]	Hussain [22]	Hossain [39]
Population	Administrative analysis of ICD10 codes (episodes of diverticulitis)	Patients evaluated with CT for AD	Patients evaluated with CT for AD	Patients admitted in emergency surgery unit	Patients admitted in emergency surgery unit	Patients admitted in emergency surgery unit	Patients evaluated with CT for AD
Results	Significantly decrease in diverticulitis episodes during pandemic (p = 0.004)	Diverticulitis with 11.7% of those patients presenting with an associated abscess. During the same time in 2019, many more CT studies with newly diagnosed diverticulitis were obtained, and, compared to 2020, less than half the percentage of those patients had an associated abscess (4.4%).	Decrease uncomplicated diverticulitis cases dropped significantly (p = 0.002) while there was no significant difference in the number of complicated diverticulitis cases (p = 0.09).	The prevalence of acute diverticulitis was significantly lower during pandemic (p = 0.004)	No difference in severity of acute diverticulitis (p = 0.333)	The prevalence of acute diverticulitis was significantly lower during pandemic (p < 0.05)	During the COVID-19 pandemic, fewer patients presented and were diagnosed with acute diverticulitis (decrease of 51.4% than same period in 2019). A significantly greater proportion presented at a more advanced stage and required emergency surgery, suggesting late presentation