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Table 3 Total number of waves experienced asthma exacerbations, PATH Study (Waves 2–5, 2013-19)

From: Longitudinal association of exclusive and dual use of cigarettes and cigars with asthma exacerbation among US adults: a cohort study

Number of follow-up waves

No. (%)a

(N = 2,883)

95% CI

0

1865 (64.2)

61.8–66.6

1

519 (18.7)

16.7–20.9

2

249 (8.3)

7.1–9.6

3

159 (5.8)

4.8–7.0

4

91 (3.0)

2.2–4.0

  1. Abbreviations: PATH, Population Assessment of Tobacco and Health; CI, Confidence Interval
  2. a Unweighted counts and weighted percentages calculated using Wave 1 weights