|
|
Characteristics of the 23 studies included in the meta-analysis
of methods to control exposure to mites among asthma patients
|
|
| Study (year) |
Type of
intervention |
Design |
Mean age or age range
of patients (years) |
No of patients in
study |
No of patients not completing study
|
Length of follow up |
Reduction in exposure
to mites or mite antigen achieved |
|
| Dietemann et al
(1993)9 |
Chemical |
Parallel
trial, double
blind |
36 |
26 |
3 |
1
year |
No |
| Ehnert et al
(1992)11 |
Chemical |
Parallel trial, double
blind |
10 |
16 |
0 |
1
year |
No |
| Geller-Bernstein et al
(1995)12 |
Chemical |
Parallel trial, double
blind |
9 |
35 |
3 |
6
months |
No |
| Van der Heide et al
(1997)24 |
Chemical |
Parallel trial, double
blind |
31 |
40 |
0 |
1
year |
No |
| Reiser et al
(1990)16 |
Chemical |
Parallel trial, double
blind |
5-16 |
51 |
5 |
3
months |
No |
| Sette et al
(1994)17 |
Chemical |
Parallel trial, double
blind |
13 |
24 |
0 |
2
weeks |
No |
| Antonicelli et al
(1991)5 |
Physical |
Crossover trial, assessor
blind |
16 |
9 |
0 |
8
weeks |
No |
| Burr et al
(1976)6 |
Physical |
Crossover trial, no
blinding |
33 |
32 |
0 |
6
weeks |
NA |
| Burr et al
(1980)7 |
Physical |
Parallel trial, double
blind |
9 |
55 |
2 |
8
weeks |
No |
| Burr et al
(1980)8 |
Physical |
Crossover trial, no
blinding |
9 |
21 |
0 |
1
month |
No |
| Gillies et al
(1987)13 |
Physical |
Parallel trial, no
blinding |
10 |
26 |
1 |
6
weeks |
No |
| Huss et al
(1992)25 |
Physical |
Parallel trial, no
blinding |
44 |
52 |
0 |
12
weeks |
Yes |
| Maesen et al
(1977)26 |
Physical |
Crossover trial, double
blind |
7-55 |
30 |
2 |
1
month |
NA |
| Mitchell and Elliott
(1980)15 |
Physical |
Crossover trial, no
blinding |
10 |
10 |
0 |
4
weeks |
NA |
| Verrall et al
(1988)18 |
Physical |
Crossover trial, double
blind |
14 |
16 |
3 |
3
weeks |
NA |
| Walshaw and Evans
(1986)19 |
Physical |
Parallel trial, no
blinding |
34 |
50 |
8 |
1
year |
Yes |
| Warburton et al
(1994)20 |
Physical |
Crossover trial, double
blind |
46 |
13 |
1 |
4
weeks |
No |
| Warner et al
(1993)21 |
Physical |
Crossover trial, double
blind |
9 |
20 |
6 |
6
weeks |
Yes |
| Zwemer and Karibo
(1973)22 |
Physical |
Crossover trial, double
blind |
6-16 |
18 |
6 |
4
weeks |
NA |
| Carswell et al
(1996)23 |
Combination |
Parallel trial, double
blind |
10 |
70 |
21 |
24
weeks |
Yes |
| Dorward et al
(1988)10 |
Combination |
Parallel trial, assessor
blind |
25 |
21 |
3 |
8
weeks |
Yes |
| Ehnert et al
(1992)11 |
Combination |
Parallel trial, no
blinding |
10 |
16 |
0 |
1
year |
Yes |
| Marks et al
(1994)14 |
Combination |
Parallel trial, participants
blind |
35 |
35 |
5 |
6
months |
No |
|
|
NA=not assessed.
|
