Patients contacted
|
424
|
100
|
749
|
100
|
Not eligible
|
133
|
100
|
249
|
100
|
Moved from urban to rural area or vice versa
|
62
|
46.6
|
143
|
57.4
|
Without parent/legal guardian
|
19
|
14.3
|
33
|
13.3
|
Place of living outside Valdivia regiona
|
16
|
12.0
|
40
|
16.1
|
Asthma diagnosis not confirmed by a physician
|
29
|
21.8
|
NA
|
NA
|
Not born in Chile
|
1
|
0.8
|
3
|
1.2
|
Mentally/physically disabled
|
4
|
3.0
|
2
|
0.8
|
Control patient reporting diagnosis of asthma
|
NA
|
NA
|
24
|
9.6
|
Other
|
2
|
1.5
|
4
|
1.6
|
Eligible study population
|
291
|
100
|
500
|
100
|
Non-responder
|
53
|
100
|
173
|
100
|
No interest
|
21
|
39.6
|
90
|
52.0
|
No time
|
22
|
41.5
|
58
|
33.5
|
General doubts
|
9
|
17.0
|
12
|
6.9
|
Other
|
1
|
1.9
|
13
|
7.5
|
- Study population with complete interview and SPT data
|
188
|
100
|
294
|
100
|
Participation in additional study parts:
| | | | |
Stool samples
|
138
|
73.4
|
137
|
46.6
|
Blood samples
|
163
|
86.7
|
245
|
83.3
|
Dust samplesb
|
112
|
59.6
|
188
|
63.9
|