asthma inflammation of small airways
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Selection phase: - Pediatrician diagnosed asthma - Health care profesionnal thinks perception might be poor - Age 7 until 15 years old - Adequate understanding of Dutch language Intevention phase: - Adequate number of lung function measurements + VAS scores during selection phase, defined as: -At least 4 measurements after exercise or when experiencing symptoms and -At least 2 standard measurements -Poor perception during selection phase, defined as: -At least 1 measurement in red zone on Perception Rainbow and/or -At least 2 measurements in orange zone on Perception Rainbow and/or -Average of all measurements after exercise or when experiencing symptoms in yellow zone (or orange/red) and/or -Average of all measrurements in yellow zone (or orange/red)
Exclusion criteria
Exclusion criteria: -Severe comorbidity (for example psychomotor retardation or severe cardiopulmonary conditions) -Not able to fill in VAS score (for example due to blindless) -Not able to perform technically correct spirometry manoeuvres -Medication change in past 2 weeks -Exacerbation which required oral prednisone in the past 6 weeks -Exacerbation at the moment of inclusion -No device (computer, tablet or smartphone) with internet connection available at home
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The diference in average perception score during the last week of the run-in and the last week of the intevention between the intervention+feedback and control group The following calculation is used to calculate the perception score: Perception score = 100 - ((FEV1-(100- VAS*-7))/10)^ 2 | — |
Secondary
| Measure | Time frame |
|---|---|
| -Difference between average perception score of intervention group and intervention+ feedback group in the different weeks -Perception score and average perceptionscore per week -Number of perception scores in green/yellow/red zone (absolute and relative) per week -Over- or underperception score (ABS((FEV1-(100-VAS*7)))/((FEV1-(100-VAS*7))))*((FEV1-(100-VAS*7))/10)^2. A negative score reflects underperception and a positive score reflects overperception -Type of symptom when measurement (lung function + VAS) was performed -Number of approached patients and reasons for not participating -Number of patients that drop-out during or after selection phase and reasons for drop-out -User experiencences based on semi-structured interview and quetionnaire 1 (see apendix) -User experiences based on drop-outs and number + type of lung function measurments per week | — |
Countries
Netherlands