Key result
Discharge from any-cause hospital admission was associated with a 40% increased 30-day risk of asthma-related readmission (RR 1.40), though this was primarily driven by prior asthma-related discharges.
Why the study?
Does recent hospital discharge increase the risk of asthma-related hospitalization in adults with asthma?
Population
3,852 adults with asthma from British Columbia, Canada, experiencing 6,333 instances of asthma-related…
Comparison
Discharge from a hospital within 30 days before… vs Two 30-day control periods within the same subject
Design
Case-control
Follow-up
30 days
Authors
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Elevated readmission risk after asthma-related discharge supports monitoring; leaves open independent effects of any-cause admissions and prospective validation.
Case-Control (n=3,852)
Does recent hospital discharge increase the risk of asthma-related hospitalization in adults with asthma?
Relative Risk: 1.4 (95% CI 1.22–1.59)
Absolute Event Rate: 10.8% vs 7.9%
p-value: p=<0.001
In adults with asthma, the 30-day risk of asthma-related admission is increased after an asthma-related hospitalization, but not after a non-asthma-related hospitalization.
Sadatsafavi et al. (2013) conducted a case-control in Asthma (n=3,852). Discharge from any-cause hospital admission vs. Control time windows (30-day periods exactly 364 days before and after the index date) was evaluated on Asthma-related hospitalization within 30 days (RR 1.40, 95% CI 1.22-1.59, p=<0.001). Discharge from any-cause hospital admission was associated with a 40% increased 30-day risk of asthma-related readmission (RR 1.40), though this was primarily driven by prior asthma-related discharges.
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