Patients had to meet the following inclusion criteria: being enrolled in and attending follow-up visits as part of an asthma program in clinics in the region of Valparaíso, regardless of smoking status; having received a prescription for a bronchodilator and having been instructed on the proper use of their inhaler practical demonstration by a nurse, physician, or kinesiologist at each follow-up appointment; and being able to self-administer inhaled medication.
Los pacientes debieron cumplir los siguientes criterios de inclusión: pacientes asmáticos inscritos y controlados en consultorios pertenecientes a la región de Valparaíso, fumadores o no fumadores, con indicación médica de broncodilatador e instruidos previamente en el uso correcto de su inhalador demostración práctica en cada control por parte de la enfermera, médico o kinesiólogo, capaces de auto realizarse la TI.