Table 4—

Kaplan–Meier estimate of the impact of body mass index (BMI) on time to first pneumonia, comparing regimens with and without inhaled corticosteroids (ICS)#

BMI kg·m−2
<2020–<2525–<29≥29
ICS
 Patients n4231161838676
 Probability of event %25 (21–30)22 (19–24)17 (14–20)13 (10–16)
Non-ICS+
 Patients n4071158832689
 Probability of event %20 (15–25)12 (10–14)11 (9–14)13 (10–16)
 Hazard ratio1.30 (1.02–1.64)1.98 (1.67–2.34)1.60 (1.30–1.98)1.00 (0.79–1.26)
  • Data are presented as value (95% CI), unless otherwise stated. #: fluticasone propionate alone or combined with salmeterol (SAL); : Kaplan–Meier estimate of probability of pneumonia at 3 yrs; +: SAL or placebo.