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Table 3 Characteristics of the cases during the year after A/H1N1 2009 pandemic influenza according to age

From: Lessons from a French collaborative case–control study in cystic fibrosis patients during the 2009 A/H1N1 influenza pandemy

  n Cases <18 years (n = 33) n Cases ≥18 years (n = 11) p
Change in FEV1, %, mean (SD)a     
 Month 1 33 8.8 (18.0) 11 4.5 (16.92) 0.66
 Month 3 33 0.8 (8.3) 6 0.5 (5.2) 0.97
 Month 12 33 −1.5 (11.0) 9 3.9 (13.6) 0.26
Change in FVC, %, mean (SD)a     
 Month 1 33 5.4 (15.3) 11 4.3 (12.2) 0.88
 Month 3 33 0.9 (8.1) 11 −0.8 (5.4) 0.60
 Month 12 33 −0.6 (10.9) 11 6.4 (13.9) 0.11
Antibiotics, number of treatments, mean (SD)    
 Oral 33 2.7 (2.2) 11 3.3 (2.8) 0.57
 Intravenous 33 0.5 (1.1) 11 0.9 (1.6) 0.34
New bronchopulmonary germ colonization, n (%)    
 Any germ 33 13 (39) 11 0 0.013
H. Influenza 33 1 (3) 11 0 0.54
S. Aureus 33 3 (9) 11 0 0.29
P. Aeruginosa 33 6 (18) 11 0 0.12
B. Cepacia 33 0 (0) 11 0 1.00
A. Fumigatus 33 3 (9) 11 0 0.32
  1. Both are compared to reference data and expressed as percent predicted values, based on age, gender, and height
  2. FEV 1 forced expiratory volume in one second, FVC forced vital capacity, SD standard deviation
  3. aMissing data were imputed