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Correlations between VAS and asthma diary items
| VAS-am | VAS-pm | |
|---|---|---|
| Morning diary items | ||
| Nocturnal wakening | 0.45*** | |
| Morning symptoms | 0.55*** | |
| Evening diary items | ||
| Activity limitation | 0.41*** | |
| Shortness of breath | 0.52*** | |
| Wheezing | 0.58*** | |
| Short acting beta agonist use | 0.42*** | |
*** p = <.0001
