Table 1 Classification Tree Variables.
| Variables | Code | Abbreviation | Tree Usage |
|---|---|---|---|
| Physical Contact |
1 = 'yes'; 2 = 'no' | touching | 1* |
| Location |
1 = 'home'; 2 = 'work'; 3 = 'school', 4 = 'transport'; 5 = 'leisure'; 6 = 'other-multiple' | location | 1,2*,3,4 |
| Frequency |
1 = 'daily'; 2 = 'weekly'; 3 = 'monthly'; 4 = 'few times a year'; 5 = 'first time' | frequency | 3* |
| Duration |
1 = '0–5 min'; 2 = '5–15 min'; 3 = '15 min – 1 hour'; 4 = '1–4 hours'; 5 = '> 4 hours' | duration | 4* |
| Age Contact | Continuous | agecon | 1,2,3,4 |
| Gender Contact |
1 = 'male'; 2 = 'female' | gencon | 1,2,3,4 |
| Age Participant | Continuous | agepar | 1,2,3,4 |
| Gender Participant |
1 = 'male'; 2 = 'female' | genpar | 1,2,3,4 |
| Occupation Participant |
1 = 'working'; 2 = 'retired'; 3 = 'at home'; 4 = 'unemployed/job seeking'; 5 = 'in education'; 6 = 'other' | occpar | 1,2,3,4 |
| Household Size Participant |
Household Size (including participant) | hhsize | 1,2,3,4 |
| Region |
Brss = 'Brussels' WlsG = 'Walloon region' VlsG = 'Flanders' | region | 1,2,3,4 |
| Day of the Week |
0 = 'Sunday'; 1 = 'Monday'; 2 = 'Tuesday'; 3 = 'Wednesday'; 4 = 'Thursday'; 5 = 'Friday'; 6 = 'Saturday' | dayofweek | 1,2,3,4 |
| Holiday Period |
0 = 'no holiday period' 1 = 'holiday period'; | holiday | 1,2,3,4 |