Table 1.

Predetermined coding framework for post categories.

Subcategories			Example posts
Education and information sharing
	News	“Official statement from Dr. Peter Tsai, inventor of the electrostatic charging technology that makes the filter media of face masks including medical and N95.”
	Academic	“I created these quick sheets (PDF and images) for non-ICU clinicians (medical or surgical) who may find themselves taking care of critically ill patients.”
	Question	“Has anyone seen patients whose presenting symptom was only abdominal pain (no diarrhea)?”
	Personal experience	“We recently had a COVID patient with a cimino fistula with thrombosis of the fistula.”
	Resource	“As you know, the CARES act passed a few days ago and it is 800 pages long. There are a lot of provisions in it that may help you, whether you run a small business or are an employee of a health care facility.”
	Movement-based advocacy	“Stay Home Stay Safe.”
Supply and equipment
	Idea sharing	“Here is a link to a google doc on how to make one yourself.”
	Request for resources (demand)	“We need a way to make more. Can you help produce these?”
	Offer to provide resources (supply)	“I’m in Miami looking to donate some face shields locally does anyone here need?”
	Networking	“Anyone here been in touch with the NHS… Any contacts appreciated.”
Opinions
	Professional	“To summarize, treat your patients as individuals. If they have compliant lungs but are hypoxemic, use PEEP cautiously, and if they are not PEEP responsive, don’t persist in trying to treat them for a disease they probably don’t have.”
	Layperson	“I have remained fairly calm since January when the news broke, but today I find myself sad and weeping for all that the world has suffered.”
	Conspiracy theory	“Russia and anti-vaxxers are spreading disinformation about COVID-19 and 5G.”
Humor and motivation
	Humor	“‘What’s parenting during lockdown like?”
	Support for health care workers	“We love you guys....thank you for saving life in this hard time”
	Inspiration	“Raise your hand if you know what it’s like to lose everything and rebuild your life from scratch.”
	Mental health visibility	“For all the health care providers and unsung heroes on the front lines: nothing can “fix” these feelings, but maybe naming them and noticing them can make them a little easier to bear.”