An interventional video and question prompt list were not associated with improvements in asthma control and quality of life, according to a study recently published in the Journal of Asthma.
Researchers of this study observed 359 patients aged 11 to 17 years with persistent asthma, 91.3% of whom spoke English at home instead of Spanish. These participants were randomly assigned to either usual care (n=174) or intervention (n=185), which included a video viewed with parental accompaniment, as well as a question prompt list that took roughly 4 minutes to complete. Visits were audio-recorded at both baseline and 6 months. To predict asthma control and quality of life in a year, study researchers used generalized estimating equations. Generalized estimating equations were also used for subgroup analyses.
Although both usual care and intervention groups showed improvements in asthma control and quality of life during follow up a year later, the effects of video intervention were not significant (P =.08 for asthma control and P =.52 for asthma quality of life). However, a significant association was found between good baseline asthma control and good 1-year asthma control (odds ratio [OR] 4.09; 95% CI, 2.50-6.67), as well as between baseline and 1-year asthma quality of life (beta 0.45; 95% CI, 0.34-0.57). Compared with those who did not take control medication at baseline, those who were on control medication at baseline were significantly more likely to have good 1-year asthma control (OR 2.92; 95% CI, 1.23-6.84).
Limitations to this study included a potential lack of generalizability due to exclusive recruitment of youth in North Carolina and from primary care clinics, a lack of data on how many referrals did not communicate with the research assistant, the potential for the Hawthorne effect to have impacted results, and lack of info on the patients’ relationships with their primary care providers.
Study researchers concluded that “[asthma] control and quality-of-life did not improve significantly more in the intervention group than in the usual care group. However, the intervention developed and used in this work shows promise and should be tested in future work. The question prompt list and video intervention is brief, easy to implement, and inexpensive.”
Sleath B, Carpenter D, Davis SA, et al. The impact of a question prompt list and video intervention on teen asthma control and quality-of-life one year later: results of a randomized trial [published online July 16, 2019]. J Asthma. doi: 10.1080/02770903.2019.1633542