Correction to: Pulm Ther https://doi.org/10.1007/s41030-024-00259-x


In this article Fig. 1 has been given erroneously:

Fig. 1
figure a

Study flow chart of the population before matching


It should be:

Fig. 1
figure b

Study flow chart of the population before matching


Also, the Abstract section has been corrected:


Results: Among 244 719 LTOT patients (mean age 75 ± 12, 48% women) included, 38% used aSC, 46% mobile oxygen in the form of LO2 (38%) and POC (18%), whereas 9% used CTC.”


It should read:


Results: Among 244 719 LTOT patients (mean age 75 ± 12, 48% women) included, 38% used aSC, 46% mobile oxygen in the form of LO2 (29%) and POC (18%), whereas 9% used CTC.”

In the Results section, the following sentences were corrected:

- “Remarkably, only 5% of the patients had chronic respiratory disease as a single disorder, whereas dyspnea, which is one of the symptoms of patients with CRF, was reported for 3% of patients” has been corrected to “Remarkably, only 5% of the patients had chronic respiratory disease as a single disorder, whereas dyspnea, which is one of the symptoms of patients with CRF, was reported for 4% of patients.”


- “In the total LTOT population, 24% received assistive mobility devices, with a higher proportion of patients in the aSC group compared to the POC group (26% vs.19%, respectively)” has been corrected to “In the total LTOT population, 24% received assistive mobility devices, with a higher proportion of patients in the aSC group compared to the POC group (28% vs.19%, respectively).”


- “According to the hospital frailty risk score, 59% of the total LTOT patients were not vulnerable, with the aSC group presenting a higher proportion of patients with low and intermediate frailty scores (41% and 4%, respectively; Table S6)” has been correct to “According to the hospital frailty risk score, 64% of the total LTOT patients were not vulnerable, with the aSC group presenting a higher proportion of patients with low and intermediate frailty scores (36% and 2%, respectively; Table S6).”


- “After matching, 17,099 were included in each group and the subpopulations were comparable: mean age 72 ± 11, 56% male patients, 42% of SC equipment (Fig. S4)” has been corrected to “After matching, 17,099 were included in each group and the subpopulations were comparable: mean age 72 ± 11, 56% male patients, 42% of SC equipment.”


In table S9 (supplementary material), the relative risk value for “ER without hospitalization” has been corrected from “1.08 (1.06–1.10)” to “0.87 (0.85–0.89).”


The original article has been corrected.