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Table 2 Spirometry results

From: Identifying airway obstruction in primary care: is there a role for physiotherapists?

 

TOTAL n = 145

AT RISK of COPD n = 114

EXISTING COPD n = 31

Mean post-bronchodilator FEV1/FVC (SD)

0.74 (0.1)

0.77 (0.1)

0.62 (0.1)

Mean post-bronchodilator FEV1 (SD)

2.43 (0.9)

2.63 (1.0)

1.64 (0.7)

Airway obstruction (FEV1/FVC ≤ 0.7)

43 (30%)

19 (17%)

24 (77%)

GOLD Stage I

14 (10%)

9 (8%)

5 (16%%)

GOLD Stage II

27 (19%)

10 (9%)

17 (55%)

GOLD Stage III

2 (1%)

0 (0%)

2 (6%)

GOLD Stage IV

0 (0%)

0 (0%)

0 (0%)

No obstruction

99 (68%)

95 (83%)

7 (23%)

  1. Data are presented as Number (%) unless indicated otherwise
  2. Abbreviations: COPD Chronic obstructive pulmonary disease, FEV1 Forced expiratory volume in one second, FVC Forced vital capacity, GOLD Global initiative for chronic obstructive lung disease, SD Standard deviation
  3. COPD GOLD staging classification17—Stage 1: FEV1 ≥ 80%; Stage 2: FEV1 50–79%; Stage 3: FEV1 30–49%; Stage 4: FEV1 < 30%