| Title |
Daily duration of long-term oxygen therapy and risk of hospitalization in oxygen-dependent COPD patients
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, August 2018
|
| DOI | 10.2147/copd.s167523 |
| Pubmed ID | |
| Authors |
Josefin Sundh, Zainab Ahmadi, Magnus Ekström |
| Abstract |
Long-term oxygen therapy (LTOT) improves survival and may reduce hospital admissions in patients with chronic obstructive pulmonary disease (COPD) and severe hypoxemia, but the impact of daily duration of LTOT on hospitalization rate is unknown. We aimed to estimate the association between the daily duration of LTOT (24 vs 15 h/d) and hospital admissions in patients with LTOT due to COPD. A population-based, cohort study included patients who started LTOT due to COPD between October 1, 2005 and June 30, 2009 in the Swedish national register for respiratory failure (Swedevox). Time to first hospitalization from all causes and from respiratory or nonrespiratory disease, using the National Patient Registry, was analyzed using Fine-Gray regression, adjusting for potential confounders. A total of 2,249 patients with COPD (59% women) were included. LTOT 24 h/d was prescribed to 539 (24%) and LTOT 15-16 h/d to 1,231 (55%) patients. During a median follow-up of 1.1 years (interquartile range, 0.6-2.1 years), 1,702 (76%) patients were hospitalized. No patient was lost to follow-up. The adjusted rate of all-cause hospitalization was similar between LTOT 24 and 15-16 h/d (subdistribution hazard ratio [SHR] 0.96; [95% CI] 0.84-1.08), as was cause-specific hospitalizations analyzed for respiratory disease (SHR: 1.00; 95% CI: 0.86-1.17) and nonrespiratory disease (SHR: 0.92; 95% CI: 0.75-1.14). LTOT prescribed for 24 h/d was not associated with decreased hospitalization rates compared with LTOT for 15-16 h/d in patients with oxygen-dependent COPD. The results should be validated in a randomized controlled trial. |
Mendeley readers
The data shown below were compiled from readership statistics for 25 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 25 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Other | 3 | 12% |
| Student > Master | 3 | 12% |
| Librarian | 2 | 8% |
| Student > Postgraduate | 2 | 8% |
| Student > Bachelor | 2 | 8% |
| Other | 2 | 8% |
| Unknown | 11 | 44% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 9 | 36% |
| Nursing and Health Professions | 2 | 8% |
| Business, Management and Accounting | 1 | 4% |
| Computer Science | 1 | 4% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 4% |
| Other | 0 | 0% |
| Unknown | 11 | 44% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 July 2020.
All research outputs
#8,266,724
of 25,385,509 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#1,016
of 2,578 outputs
Outputs of similar age
#131,605
of 341,886 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#31
of 69 outputs
Altmetric has tracked 25,385,509 research outputs across all sources so far. This one has received more attention than most of these and is in the 66th percentile.
So far Altmetric has tracked 2,578 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one has gotten more attention than average, scoring higher than 59% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 341,886 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 60% of its contemporaries.
We're also able to compare this research output to 69 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 55% of its contemporaries.