Table 3 Summary of the characteristics of the study population
From: Can spirometric norms be set using pre- or post- bronchodilator test results in older people?
Variable | Men | Women | ||||
|---|---|---|---|---|---|---|
N | Mean | SD | N | Mean | SD | |
“Normal” population with adequate spirometry | ||||||
Age (years) | 584 | 56.4 | 12.1 | 770 | 57.9 | 11.7 |
Height (cm) | 584 | 176.5 | 7.8 | 770 | 162.2 | 7.1 |
pre- BD FEV1 (litres) | 584 | 3.58 | 0.78 | 770 | 2.52 | 0.56 |
pre- BD FEV6 (litres) | 584 | 4.55 | 0.91 | 770 | 3.19 | 0.68 |
pre- BD FVC (litres) | 584 | 4.76 | 0.91 | 770 | 3.32 | 0.69 |
pre- BD FEV1/FVC (%) | 584 | 75.1 | 6.6 | 770 | 75.9 | 6.1 |
post-BD FEV1 (litres) | 584 | 3.67 | 0.77 | 770 | 2.58 | 0.57 |
post-BD FEV6 (litres) | 584 | 4.55 | 0.88 | 770 | 3.19 | 0.67 |
post-BD FVC (litres) | 584 | 4.71 | 0.88 | 770 | 3.29 | 0.68 |
post-BD FEV1/FVC (%) | 584 | 77.9 | 6.3 | 770 | 78.5 | 6.0 |
“Other”* population with adequate spirometry | ||||||
Age (years) | 2787 | 58.7 | 11.3 | 2459 | 58.7 | 11.7 |
Height (cm) | 2787 | 175.4 | 7.4 | 2459 | 162.2 | 7.3 |
pre- BD FEV1 (litres) | 2787 | 3.19 | 0.84 | 2459 | 2.34 | 0.63 |
pre- BD FEV6 (litres) | 2787 | 4.18 | 0.96 | 2459 | 3.03 | 0.73 |
pre- BD FVC (litres) | 2787 | 4.43 | 0.97 | 2459 | 3.19 | 0.75 |
pre- BD FEV1/FVC (%) | 2787 | 71.5 | 9.2 | 2459 | 72.9 | 8.6 |
post-BD FEV1 (litres) | 2787 | 3.29 | 0.84 | 2459 | 2.41 | 0.63 |
post-BD FEV6 (litres) | 2787 | 4.21 | 0.93 | 2459 | 3.05 | 0.71 |
post-BD FVC (litres) | 2787 | 4.43 | 0.94 | 2459 | 3.08 | 0.73 |
post-BD FEV1/FVC (%) | 2787 | 73.9 | 9.4 | 2459 | 75.6 | 8.9 |