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Table 2 Particle deposition fractions

From: Altered deposition of inhaled nanoparticles in subjects with chronic obstructive pulmonary disease

  DF
50 nm
1300 mL
DF
50 nm
1800 mL
DF
100 nm
1300 mL
Healthy Never-Smokers (n = 17) 0.92 ± 0.06 0.94 ± 0.05 0.69 ± 0.12
Asymptomatic Smokers (n = 15) 0.93 ± 0.08 0.95 ± 0.04 0.73 ± 0.11
COPD (n = 16) 0.86 ± 0.08* 0.88 ± 0.07* 0.57 ± 0.12*
All Subjects (n = 48) 0.90 ± 0.08 0.92 ± 0.06 0.66 ± 0.14
  1. * Significance < 0.016 level. Particle deposition fraction, DF, for the different groups (average DF ± 1 standard deviation). Significant differences compared to the healthy reference group marked by *, (Bonferroni adjusted significance level 0.016)