Table 3.

Were the feasibility criteria met?

Criteria	Feasibility criteria met?	Recommendations for full trial
Blinding of assessor	Yes	Treatment providers should try to keep the treatment duration close to or equal to 1 hour to avoid any guesses of group allocation between the treatment groups.
Recruitment rate	Yes	Incorporating advertisement to recruit the patients was a good idea, which should be considered in the full trial.
Attrition rate (in both arms)	Yes	Phone call reminders for the follow-up assessment helped reduce the drop-outs and which should be considered in the future trial.
Feasibility of outcome assessment	Yes	Practice administration of the outcome measures on real patients who are older and have lesser education before the actual recruitment by learning ways to keep patients focused on the questions being asked. Keep the relatives and friends of the patients separate from the participant during screening and assessment. Self-administration of the questionnaires for participants who can read and write could improve the efficiency of completing the screening and data collection forms. Separate the pain-related questionnaires and general questionnaires during administration.
Contamination of intervention	Yes	Having an appointment time for follow-up helps avoid contamination.
Credibility of treatment	Yes	The credibility scores of the two treatment conditions were within 0.50 SD of each other; therefore, no changes in the treatment conditions are required.
Adherence to treatment	Yes	Not many patients read the handbook provided to them. Creating interesting short audios or videos with the key messages may be helpful for improving the adherence to home advice.
Difficulty level of the intervention	No	A large proportion of patients reported the interventions to be ‘easy’. The complexity of the pain education content may be increased by providing more complex neurophysiological knowledge to the patients. However, this may demand longer duration of treatment time, and/or compromise the effectiveness of the intervention, and may require pretesting of the changed intervention before using it in the full trial.