Is oxygen therapy beneficial for normoxemic patients with acute heart failure? A propensity score matched study

Table 2 Association between oxygen therapy and clinical outcomes in normoxemic patients with AHF

Clinical outcomes^a	Ambient Air	Oxygen Therapy	OR (95% CI)	P value
Pre-matched cohort	n = 1692	n = 1230
All-cause in-hospital mortality [n (%)]
Univariable logistic model	104 (6.1)	98 (8.0)	1.32 (0.99–1.76)	0.056
Multivariable logistic model	104 (6.1)	98 (8.0)	1.34 (0.98–1.84)	0.067
All-cause ICU mortality [n (%)]
Univariable logistic model	42 (2.5)	43 (3.5)	1.42 (0.92–2.19)	0.109
Multivariable logistic model	42 (2.5)	43 (3.5)	1.58 (0.97–2.56)	0.066
Length of ICU stay (days)	2.2 (1.5–3.5)	2.7 (1.8–4.6)	1.15 (1.11–1.19)	< 0.001
Length of hospital stay (days)	6.5 (4.0–11.3)	7.8 (4.8–13.1)	1.07 (1.04–1.11)	< 0.001
Post-matched cohort	n = 1122	n = 1122
All-cause in-hospital mortality [n (%)]
Univariable logistic model	74 (6.6)	89 (7.9)	1.22 (0.89–1.68)	0.223
Multivariable logistic model	74 (6.6)	89 (7.9)	1.30 (0.92–1.82)	0.138
All-cause ICU mortality [n (%)]
Univariable logistic model	34 (3.0)	40 (3.6)	1.18 (0.74–1.88)	0.479
Multivariable logistic model	34 (3.0)	40 (3.6)	1.39 (0.83–2.32)	0.206
Length of ICU stay (days)	2.2 (1.5–3.8)	2.7 (1.7–4.4)	1.11 (1.06–1.15)	< 0.001
Length of hospital stay (days)	6.8 (4.1–11.2)	7.6 (4.6–12.9)	1.06 (1.01–1.10)	0.009

^aValues are n (%) or median (interquartile range). AHF acute heart failure, ICU intensive care unit, OR odds ratio, CI confidence interval

ISSN: 2054-9369