Table 3—

Cystic fibrosis infant bronchoalveolar lavage profiles from the right middle and lingula lobes

≥1×105 cfu·mL−1<1×105 cfu·mL−1 in both lobes
RMLp-valueLingulaRMLLingula
Subjects n624
Recovery %340.88324144
CI19–5823–4534–5036–51
p-value0.420.09
Pathogen cfu·mL−14.6×1050.0033.2×1022.6×1012.1×101
CI2.5–860.04–22.30.4–11.60.3–7.8
p-value<0.0010.15
Total cell count ×104·mL−11710.09106136120
CI124–26042–265100–18483–172
p-value0.190.77
Macrophages %300.29446866
CI27–4312–7559–7659–74
p-value<0.0010.14
Neutrophils %670.29522829
CI55–7921–8421–3522–36
p-value<0.0010.12
Lymphocytes %4.00.853.83.03.2
CI0.4–7.60.4–7.21.9–4.02.3–4.0
p-value0.510.65
IL-8 pg·mL−111040.67906229175
CI233–5236302–2716114–459108–283
p-value0.050.01
  • ≥1×105 cfu·mL−1 in the right middle lobe only

  • paired t-test between right middle and lingula lobes in the 6 subjects with ≥1×105 cfu·mL−1 in the right middle lobe only

  • 2-sample t-test between right middle lobes and between lingula lobes in the 6 subjects with unilateral (right middle lobe only) bacterial counts ≥1×105 cfu·mL−1 and the 24 subjects with 1×105 cfu·mL−1 in both lobes. IL-8: interleukin-8