CV substudy | NETT | |
Demographics | ||
Patients n | 163 | 1218 |
Age yrs | 65.6±6.6 | 66.4±6.1 |
Male % | 60.1 | 61.2 |
Race % | ||
C/AA/O | 89.6/9.8/0.6 | 94.9/3.4/1.6 |
Pulmonary function | ||
FEV1/FVC | 32.9±7.2 | 31.6±6.4 |
FEV1 % pred | 27.2±7.2 | 26.9±7.1 |
FVC % pred | 65.5±15.6 | 66.8±15.2 |
TLC % pred | 125.2±14.5 | 129.0±14.5 |
RV % pred | 223.2±47.9 | 225.4±48.0 |
DL,CO % pred | 27.0±9.3 | 28.3±9.7 |
Arterial blood gas | ||
pH | 7.42±0.03 | 7.42±0.03 |
Pa,CO2 mmHg | 42.8±6.3 | 42.8±5.3 |
Pa,O2 mmHg | 65.2±10.3 | 64.6±10.2 |
Data are presented as mean for continuous variables±sd, unless otherwise indicated. CV: cardiovascular; NETT: National Emphysema Treatment Trial; C: Caucasian; AA: African-American; O: other; FEV1: forced expiratory volume in one second; FVC: forced vital capacity; % pred: % predicted; TLC: total lung capacity; RV: residual volume; DL,CO: diffusing capacity of the lung for carbon monoxide; Pa,CO2: carbon dioxide arterial tension; Pa,O2: arterial oxygen tension. 1 mmHg = 0.133 kPa.