Table 1

Baseline values for all patients (n = 9)

Baseline characteristics


     Gender (female/male)
3/6
     Age (years)*
72 (51–86)
     Body-mass index (kg/m2)*
25.9 (24.7–33.7)
     Smoking (pack years)*
30 (25–50)
     Duration of COPD (years)*
2.0 (1–4)
     Number of AECOPD in previous year*
1 (1–2)
     Duration of AECOPD (days)
4 (4–7)
     Dyspnea (%)
9 (100%)
     Cough (%)
9 (100%)
     Increased sputum production (%)
9 (100%)
     Discoloured sputum (%)
7 (78%)
     Fever (%)
7 (78%)
     Maintenance therapy at admission (%)

          β2-agonist and/or anticholinergic
7 (78%)
          Inhaled corticosteroids
4 (44%)
          Oral corticosteroids
0 (0%)
          Theophyllin
0 (0%)
          Long-term oxygen therapy
1 (11%)
     Severity of AECOPD – Anthonisen's criteria [8] (%)

          1
0 (0%)
          2
2 (22%)
          3
7 (78%)

     Heart rate* (beats/min)
84 (70–101)

     Blood pressure* (mmHg)

     Systolic
143 (120–150)
     Diastolic
80 (69–85)

     Respiratory rate*
16 (12–25)

Laboratory findings:


     Leukocytes total*
9.3 (7.7–10.1)
     CRP (mg/dl)*
19 (6–61)
     Cortisol basal (nmol/l)**
439 (392–462)
     Cortisol after 1 μg ACTH (nmol/l)**
712 (608–730)
     Basal ACTH (ng/l)**
9.2 (5.1–11.5)

* median, interquartile range;

Schuetz et al. BMC Pulmonary Medicine 2008 8:1   doi:10.1186/1471-2466-8-1