|
Time (months)
|
0
|
3
|
6
|
9
|
12
|
---|
Outcome measures
| | | | | | |
---|
Measurements:
|
Urine cotinine
| | ● | ● | ● | ● | ● |
Household nicotine level
| | ● | | | | ● |
EBC
| | ● | | ● | | |
Wheezometer
| | ● | | ● | | |
Long function
| | ● | ● | ● | ● | ● |
Questionnaires:
|
Parental smoking behaviour [24], PS exposure to the child Beliefs about PS exposure in children
| ● | ● | ● | ● | ● |
Respiratory symptoms and infections (based on questions developed by the PREPASE team and the respiratory symptoms questionnaire [37]
| ● | ● | ● | ● | ● |
ISAAC [23]
| | ● | | | | ● |
Quality of life (FSII) [38]
| | ● | ● | ● | ● | ● |
Process evaluation
| | | | | | ● |
- The measurements take place in both groups of the RCT, all measurements are home based. The process evaluation questionnaire is completed only in the intervention group. Questionnaires are completed by the parents. PS = passive smoke.