Document Classification

Section Type: RESULTS

Text: The majority (81. 3 %) of nocturnal symptoms occurred outside of exacerbation periods and were associated the next day with the following events : albuterol use (56. 9 % of days preceded by nocturnal symptoms vs 18. 1 % of days not preceded by nocturnal symptoms ; relative risk [RR], 2. 3 ; 95 % CI, 2. 2-2. 4), school absence (5. 0 % vs 0. 3 % ; RR, 10. 6 ; 95 % CI, 7. 8-14. 4), and doctor contact (3. 7 % vs 0. 2 % ; RR, 8. 8 ; 95 % CI, 6. 1-12. 5).