Supplementary Table 1.

List of questions presented in the survey

Characteristics of Endoscopy Units
1	How many procedures do you perform in your endoscopy unit every year? a.<5000 b.>5000
2	How many physicians do you have in your endoscopy unit?
3	How many nurses do you have in your endoscopy unit?
4	How many health care assistants do you have in your endoscopy unit?
Changes in endoscopy activity related to COVID-19
5	When was the first case of infection found in your hospital? a.1–2 weeks ago b.2–3 weeks ago c.3–4 weeks ago d.>4 weeks ago
6	When did you start reducing the daily endoscopic activity?
7	How much has it reduced? a.100% (stopped) b.75%–99% c.50%–74% d.25%–49% e.0%–24% (no reduction)
8	What kind of procedures are you still doing? a.Urgent procedures from emergency department b.Inpatients c.Nondeferrable urgent procedures d.Colorectal cancer screening program e.Day hospital procedures f.All of them
Procedures in COVID-19–positive or high-risk patients
9	How many endoscopic procedures have you performed in SARS-CoV-2a–infected patients?
10	What were the main indications for the examination?
11	How many endoscopic procedures have you performed in patients with suspected SARS-CoV-2 infection?
12	What were the main indications for the examination?
13	Did you do follow up with this type of patient? a.Yes, specify when: b.No
14	How many of them were found to be positive for COVID-19?
15	Are you performing follow-up in asymptomatic patients who undergo endoscopic procedures to assess whether they develop respiratory symptoms in the next 14 days? a.Yes b.No
16	Have you ever been informed of a patient who became positive in the 14 days following an endoscopic procedure? a.Yes, specify the number: b.No
Infection prevention and control measures for COVID-19
17	What kind of preventive measures have you taken since the news of the first case of COVID-19breported in Italy (February 18, 2020)? a.Triage for risk stratification before entering endoscopy b.Staff reduction c.Other, please specify:
18	Have you recently (after March 9, 2020) changed any of the previously cited measures? a.Yes, please specify: b.No
19	Have you changed something in emergency endoscopic procedures? a.Yes, please specify: b.No
20	What kind of personal protective equipment was provided to your endoscopy unit? a.Surgical mask b.N95/FFP2-3 respiratorc c.Gloves d.Hairnet e.Goggles or face shield f.Long-sleeved, water-resistant gown
21	What kind of personal protective equipment do you use while performing procedures in patients positive or highly suspicious for SARS-CoV-2 infection? a.Surgical mask b.N95/FFP2-3 respirator c.Gloves, single pair d.Gloves, double pair e.Hairnet f.Goggles or face shield g.Long-sleeved, water-resistant gown
22	Do you provide any personal protective equipment to patients who have to undergo endoscopic procedures? a.Yes, please specify: b.No
23	Is your endoscopy unit provided with negative pressure rooms? a.Yes b.No
24	Have you dedicated specific areas to performing endoscopic procedures in COVID-19 patients? a.Yes b.No
Modifications in endoscopy department organization due to COVID-19 outbreak
25	How many physicians have been relocated to other departments? a.None b.1–2 c.3 d.>3
26	How many nurses have been relocated to other departments? a.None b.1–2 c.3 d.>3
27	Was the endoscopy unit converted to another use? a.Yes b.No
28	Have you had any specific instructions from the Hospital Health Direction on how to work during this period? a.Yes b.No
29	Have you developed infectious risk management protocols in agreement with the Hospital Health Direction? a.Yes b.No
30	Have you written protocols in agreement with the Hospital Health Direction on the proper use of personal protective equipment? a.Yes b.No
31	Have you received training on how to wear personal protective equipment properly? a.Yes b.No
32	Have you developed protocols in agreement with the Hospital Health Direction on how to manage positive or highly suspicious cases of SARS-CoV-2 infection? a.Yes b.No
33	In your opinion, is it possible to transmit the infection within the endoscopy unit? a.Yes, through the endoscopic equipment b.Yes, through the environment c.Yes, through the endoscopy personnel d.No

SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.