Capnographic monitoring reduces hypoxia incidence in older patients undergoing gastrointestinal endoscopy under propofol sedation: study protocol for a multicenter randomized controlled trial

Table 3 Schedule of the major study events

Project	Gastroscopy diagnosis and treatment period(Visit 1)
Project	Arrive the examination room	sedative induction	Procedure start	Procedure over	participants wakes up	Leave the examination room
Baseline data
Informed consent	×
Medical history	×
Inclusion / exclusion criteria	×
Demographic data	×
Vital signs	×	×	×	×	×	×
Physical examination	×
Research outcome measures
Hypoxia		×	×	×
Sub-clinical hypoxia		×	×	×
Severe hypoxia		×	×	×
Adverse event		×	×	×
Research drug
Study randomization	×
Calculate drug dosage						×
Others
Gastroscope procedure time				×
Combined medication	×	×	×	×	×	×

ISSN: 1745-6215