TABLE 1

Characteristics of oxygen-dependent interstitial lung disease patients

All patientsPatients prescribed benzodiazepinesPatients prescribed opioids
Patients1635651710
Age years76.3±9.076.2±8.875.7±9.5
Female606 (37.1)273 (41.9)313 (44.1)
FEV1 % pred68.4±24.467.1±21.866.5±23.3
 Missing689 (42.1)269 (41.3)308 (43.4)
VC % pred57.7±23.056.1±19.857.1±21.2
 Missing694 (42.4)269 (41.3)309 (43.5)
FEV1/VC0.8±0.40.9±0.60.8±0.1
 Missing648 (39.6)256 (39.3)291 (41.0)
PaO2 airkPa6.6±1.06.7±1.06.6±1.0
 Missing367 (22.4)150 (23.0)162 (22.8)
PaCO2 air kPa5.1±1.05.1±0.95.2±0.9
 Missing375 (22.9)152 (23.4)164 (23.1)
Follow-up days228 (82–512)280 (111–570)304.5 (118–646)

Data are presented as n, mean±sd, n (%) or median (interquartile range). FEV1: forced expiratory volume in 1 s; VC: vital capacity; PaO2: arterial oxygen tension (breathing air); PaCO2: arterial carbon dioxide tension (breathing air).