Automated oxygen control with O2matic^® during admission with exacerbation of COPD

Figures & data

Figure 1 The O2matic^® device.

Figure 2 Study design.

Table 1 Patient characteristics

Characteristics	Mean±SD or number (%)
Age (years)	72.4±8.4
Women/Men	12 (60)/8 (40)
FEV1 (L)	0.72±0.31
FEV1 (% predicted)	33±17
FEV1/FVC	0.46±0.10
GOLD group 1/2/3/4	0 (0)/4 (20)/6 (30)/10 (50)
Body mass index (kg/m^2)	25.2±7.1
Smokers/ex-smokers/nonsmokers	5 (25)/15 (75)/0 (0)
Pack years	41±14

Figure 3 Fraction of time with different levels of SpO₂ for O2matic^® (blue bars) and manual control (red bars).

Abbreviation: SpO₂, oxygen saturation.