Author | Year | Population | Comp. | Duration | Conceal-ment | Blinding | Random-isation | Attrition | Balance at baseline | Equal handling | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Kanniess et al | 2001 | No. completing | 15 | BUD | 2 weeks crossover 3–8 weeks washout | No info about allocation | Participant | Yes | Yes but no evidence of method | 1 (5.25%) | no | yes |
 |  | Mean age | 33 |  |  |  | Admin. | no |  |  |  |  |
 |  | Stable | yes |  |  |  | Observer | yes |  |  |  |  |
 |  | Non smokers only | yes |  |  |  | Analyst | ? |  |  |  |  |
 |  | Mean FEV1 % pred: | 94 |  |  |  |  |  |  |  |  |  |
Nave et al | 2005 | No. completing | 18 | BUD | Combined treatment Oropharyngeal washings taken at 0 mins on day 1, 15 mins on day2, 30 mins on day 3, 45 mins on day 4 and 60 mins on day 5. | No info about allocation | Participant | no | Yes but no evidence of method | 0 | yes | yes |
 |  | Mean age | 33 |  |  |  | Admin. | no |  |  |  |  |
 |  | Stable | yes |  |  |  | Observer | no |  |  |  |  |
 |  | Non smokers only | no |  |  |  | Analyst | ? |  |  |  |  |
 |  | Mean FEV1 % pred: | ? |  |  |  |  |  |  |  |  |  |
Lee, Fardon et al | 2005 | No. completing | 14 | FP | 4 weeks crossover 2 weeks washout | No info about allocation | Participant | yes | Yes but no evidence of method | 6 (30%) | yes | yes |
 |  | Mean age | 47 |  |  |  | Admin. | ? |  |  |  |  |
 |  | Stable | yes |  |  |  | Observer | ? |  |  |  |  |
 |  | Non smokers only | yes |  |  |  | Analyst | ? |  |  |  |  |
 |  | Mean FEV1 % pred: | 77 |  |  |  |  |  |  |  |  |  |
Lee, Haggart et al | 2004 | No. completing | 19 | FP | 4 weeks crossover 2 weeks washout | No info about allocation | Participant | yes | Yes but no evidence of method | 4 (17.5%) | yes | yes |
 |  | Mean age | 45 |  |  |  | Admin. | ? |  |  |  |  |
 |  | Stable | yes |  |  |  | Observer | ? |  |  |  |  |
 |  | Non smokers only | yes |  |  |  | Analyst | ? |  |  |  |  |
 |  | Mean FEV1 % pred: | 90 |  |  |  |  |  |  |  |  |  |
Richter et al | 2005 | No. completing | 18 | FP | Combined treatment Treatement 5–14 days (5 treatments in total at 0, 15, 30, 45 and 60 minutes). Minimum 1 day washout | No info about allocation | Participant | no | Yes but no evidence of method | 0 | yes | yes |
 |  | Mean age | 37 |  |  |  | Admin. | no |  |  |  |  |
 |  | Stable | yes |  |  |  | Observer | no |  |  |  |  |
 |  | Non smokers only | no |  |  |  | Analyst | ? |  |  |  |  |
 |  | Mean FEV1 % pred: | 91 |  |  |  |  |  |  |  |  |  |