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Table 1 Baseline clinical characteristics, laboratory findings, and predisposing factors in the group of patients with sarcoidosis

From: Changes in the prevalence and biofilm formation of Haemophilus influenzae and Haemophilus parainfluenzae from the respiratory microbiota of patients with sarcoidosis

Variable No. of cases/No. of patients or range (%) or average ± SD
Gender
 Female 13/31 41.9
 Male 18/31 58.1
Age (years) 24–64 42.6 ± 13.0
Tobacco smoke
 Active 9/31 29.0
 Secondary 20/31 64.5
Area of residence
 Rural 15/31 48.4
 Urban 16/31 51.6
Healthy condition
 Shortness of breath, wheezing 12/31 38.7
 Cough 16/31 51.6
 Expectoration 4/31 12.9
 Fatigue: 22/31 71.0
  a short walk (n = 1) 1/22 4.5
  1st floor (n = 4) 4/22 18.2
  2nd floor (n = 17) 17/22 77.3
 Hypertension, coronary artery disease 4/31 12.9
 Allergy 3/31 9.7
 Asthma 1/31 3.2
 Recurrent infection (≥3/year) 1/31 3.2
 Recurrent infections in childhood 8/31 25.8
 Other (anaemia, celiac disease, thyroid disorders) 8/31 25.8
 Tuberculosis 2/31 6.5
Laboratory findings
 FVC (ml) 2740–6200 4208.1 ± 883.2
 FEV1 (ml) 1600–5050 3231 ± 810.3
 FEV1/FVC% 58–95 76.5 ± 8.7
 pH 7.35–7.49 7.43 ± 0.03
 pO2 (mmHg) 63.2–108 82.6 ± 10.5
 pCO2 (mmHg) 32.8–49.1 95.4 ± 2.7
 Saturation (%) 90.9–97.3 95.4 ± 1.8
 IgG (g/l, reference: 7.0–16.0) 7.1–21.6 10.8 ± 2.7
 IgM (g/l, reference: 0.4–2.3) 0.28–3.54 1.38 ± 0.8
 IgA (g/l, reference: 0.7–4.0) 0.51–6.9 2.57 ± 1.3
 CRP (mg/l, reference: 0.0–5.0): 0.51–80.48 7.23 ± 16.7
  0.0–5.0 (n = 25) 0.51–4.15 1.51 ± 0.93
  5.1–80.48 (n = 6) 5.8–80.48 31.10 ± 28.83
 Changes in CT scan 30/30 100
 Changes in X-ray 19/20 95
 Changes observed during bronchofiberoscopy 14/17 82.4
  1. Data were presented as: No. of positive samples/No. of examinations or value range; mean ± SD
  2. Abbreviations: CT computed tomography, CRP C-reactive protein, FEV 1 forced expiratory volume in one second, FVC forced vital capacity, IgA, IgM, IgG immunoglobulin A, M, G, NP nasopharynx, SP sputum; susceptibility to “fatigue” was associated with a short walk on a flat surface, or with stair walk to the first or second floors. “Fatigue” was self reported as being unable to go any further