Table 6.

Difficulties associated with activities of study analysis and results and their correction measures.

Study activity	Difficulties and risks	Measures to correct and mitigate
Data analysis	Problems with sample variability	Perform preliminary analysis with half of patients Control patients according to degree of use (ie, group according to involvement: a lot, moderate, low, and null)
Dispersion of the results	Scientifically irrelevant data	Assess the usability and satisfaction with the intervention and degree of use Determine association between severity of symptoms and degree of use