Table 1.

Inclusion and exclusion criteria.

	Inclusion criteria	Exclusion criteria
Age	Adults aged >18 years	Individuals aged <18 years
Chronic pain	Average pain rating of ≥3 for the past 7 days (Numeric Rating Scale)	Average pain rating of <3 for the past 7 days (Numeric Rating Scale)
Technology	Access and capability to use the internet to participate in the iDBT-Paina sessions and access to a smartphone or tablet device capable of running the iDBT-Pain app	No access or capability to use the internet or no access to an internet-enabled device (eg, smartphone or tablet)
Commitment	Ability to commit to the expectations of the trial (eg, weekly sessions lasting 90 minutes and daily practice)	Inability to commit to the expectations of the trial
Psychiatric disorders	No diagnosed psychotic or personality disorders	Diagnosed psychotic (eg, schizophrenia) or personality (eg, borderline personality disorder or bipolar disorder) disorders; uncontrolled mental health disorder
Dementia or Alzheimer disease	No presence of dementia or Alzheimer disease	Diagnosis of dementia or Alzheimer disease
Language	Reasonable level of written and spoken English	Poor level of written and spoken English
Country of residence	Located in Australia	Located outside Australia

^aiDBT-Pain: internet-delivered dialectical behavioral therapy skills training for chronic pain.