Factor	Serial Num.	Item	Reference
Healthcare assurance capacity (HAC)	HAC1	During the COVID-19 pandemic, the health management function in the mhealth app encouraged me.	Akter et al. [61]
	HAC 2	During the COVID-19 pandemic, because of the health management function in the mhealth app, I feel safe.
	HAC 3	During the COVID-19 pandemic, the health management function in the mhealth app can solve my health problems.
Healthcare confidence (ACO)	ACO1	During the COVID-19 pandemic, the information provided by mhealth apps allows me to know enough about my health.	Benson et al. [67]
	ACO2	During the COVID-19 pandemic, the information provided by mhealth apps makes me feel that I can take care of my health.
	ACO3	During the COVID-19 pandemic, the information provided by mhealth apps helped me when I needed it.
	ACO4	During the COVID-19 pandemic, the information provided by mhealth apps helped me make decisions about health management.
Parasocial relationships (PSR)	PSR1	When I use mhealth app during the COVID-19 pandemic, the doctor I chose to make me feel like a friend.	Sokolova and Perez [68]
	PSR2	When I use mhealth apps during the COVID-19 pandemic, my communication with the doctor is very comfortable.	Zafar et al. [69]
	PSR3	When I use mhealth apps during the COVID-19 pandemic, I can rely on the doctor to provide me with a diagnosis.
	PSR4	When I use mhealth apps during the COVID-19 pandemic, there was a small error in the doctor’s diagnosis immediately, and I will forgive him.
User–function interaction (UFI)	UFI1	The health management function in mhealth apps is safe and reliable.	Kim and Kim [22]
	UFI2	The health management function in mhealth apps is easy to use.
	UFI3	The steps of using health management in mhealth apps are easy to learn.
	UFI4	The health management function in mhealth apps meets individual needs.
User–information interaction (UII)	UII1	The information and user interaction in mhealth apps are accurate.	Kim and Kim [22]
	UII2	Information and user interaction in mhealth apps are useful.
	UII3	The interaction between the information and the user in mhealth apps is effective.
	UII4	The information in mhealth apps can interact with the user quickly.
User–doctor interaction (UDI)	UDI1	Mhealth apps improve the interaction between users and doctors.	Kim and Kim [22]
	UDI2	Mhealth apps improve communication between users and doctors.
	UDI3	Mhealth apps allow users and doctors to interact with various types of information.
	UDI4	Mhealth apps simplify the exchange of information between users and doctors.
Satisfaction with public health (SPH)	SPH1	During the COVID-19 pandemic, the public medical resources available to me satisfy me.	Akter, Ambra and Ray [70]
	SPH2	During the COVID-19 pandemic, I can conveniently use public medical resources.
	SPH3	During the COVID-19 pandemic, I am very happy that I can use public medical resources.
	SPH4	During the COVID-19 pandemic, I can use public medical resources at any time.