| Intervention | Control | p-value |
---|---|---|---|
 | (21 practices) | (22 practices) |  |
Up to 10 years since physician registered | 9 | 1 | 0.1* |
11–20 years since registration | 11 | 9 |  |
More than 20 years since registration | 12 | 13 | Â |
Male physicians | 24 | 21 | 0.17†|
Female physicians | 8 | 2 | Â |
0 – 5 children with asthma in practice | 12 | 14 | 0.76†|
>5 children with asthma in practice | 9 | 8 | Â |