Table 2

OR for individual clinical variables in the prediction of imminent cystic fibrosis (CF) pulmonary exacerbations (ie, <4 months post-stable visit)

Clinical predictorOR (95% CI)p Value
Age (per year increase)1.01 (0.95 to 1.05)0.80
Male (vs. female)1.20 (0.44 to 3.24)0.72
Homozygous F508del
(vs non-homozygous F508del)
1.24 (0.47 to 3.29)0.67
BMI (per kg/m2 increase)0.87 (0.75 to 1.02)0.08
FEV1 (per % predicted increase)0.99 (0.97 to 1.00)0.13
Sputum microbiology
 MSSA0.79 (0.31 to 2.04)0.63
 MRSA0.63 (0.14 to 2.75)0.54
Pseudomonas aeruginosa2.79 (1.05 to 7.40)0.04
 Stenotrophomonas maltophilia1.34 (0.08 to 22.4)0.84
 Burkholderia cepacia complex0.40 (0.08 to 2.16)0.29
CF-related diabetes1.29 (0.35 to 4.75)0.70
Exacerbation requiring intravenous
antibiotics in prior year
2.29 (0.83 to 6.34)0.11
Current therapies
 Inhaled antibiotics1.25 (0.42 to 3.75)0.69
 Oral azithromycin1.24 (0.47 to 3.29)0.67
  • BMI, body mass index; MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-sensitive S. aureus.