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Table 3 aHR of CVA recurrence rate stratified by follow-up time between the non-CHD and the CHD cohort

From: Effect of congenital heart disease on the recurrence of cough variant asthma in children

Variables CHD Compared with non-CHD
No Yes
Follow-up time (month) Event % Event % aHR (95%CI) P value
 ≤ 6 month 61/63 96.8 54/55 98.2 1.852 (1.246–2.751) 0.001
 > 6 month 14/71 19.7 1/12 8.3 0.691 (0.088- 5.404) 0.725
  1. aHR indicates multiple analysis,including CHD classification, MP infection and IgE sensitization
  2. CHD congenital heart disease, CVA cough variant asthma, aHR adjusted hazard ratio, MP mycoplasma pneumoniae