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. 2017 Aug 1;75(4):e90-e98.
doi: 10.1097/QAI.0000000000001352.

Thirty-day Readmission Rates in an HIV-infected Cohort From Rio de Janeiro, Brazil

Lara E Coelho  1 , Sayonara R Ribeiro, Andre M Japiassu, Ronaldo I Moreira, Priscila C Lara, Valdilea G Veloso, Beatriz Grinsztejn, Paula M Luz
Affiliations

Thirty-day Readmission Rates in an HIV-infected Cohort From Rio de Janeiro, Brazil

Lara E Coelho et al. J Acquir Immune Defic Syndr. .

Abstract

Background: The 30-day readmission rate is an indicator of the quality of hospital care and transition to the outpatient setting. Recent studies suggest HIV infection might increase the risk of readmission although estimates of 30-day readmission rates are unavailable among HIV-infected individuals living in middle/low-income settings. Additionally, factors that may increase readmission risk in HIV-infected populations are poorly understood.

Methods: Thirty-day readmission rates were estimated for HIV-infected adults from the Instituto Nacional de Infectologia Evandro Chagas/Fiocruz cohort in Rio de Janeiro, Brazil, from January 2007 to December 2013. Cox regression models were used to evaluate factors associated with the risk of 30-day readmission.

Results: Between January 2007 and December 2013, 3991 patients were followed and 1861 hospitalizations were observed. The estimated 30-day readmission rate was 14% (95% confidence interval: 12.3 to 15.9). Attending a medical visit within 30 days after discharge (adjusted hazard ratio [aHR] = 0.73, P = 0.048) and being hospitalized in more recent calendar years (aHR = 0.89, P = 0.002) reduced the risk of 30-day readmission. In contrast, low CD4 counts (51-200 cells/mm³: aHR = 1.70, P = 0.024 and ≤ 50 cells/mm³: aHR = 2.05, P = 0.003), time since HIV infection diagnosis ≥10 years (aHR = 1.58, P = 0.058), and leaving hospital against medical advice (aHR = 2.67, P = 0.004) increased the risk of 30-day readmission.

Conclusions: Patients with advanced HIV/AIDS are most at risk of readmission and should be targeted with prevention strategies to reduce this risk. Efforts to reduce discharge against medical advice and to promote early postdischarge medical visit would likely reduce 30-day readmission rates in our population.

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Conflict of interest statement

Competing interests

The authors declare no competing interests.

Figures

Figure 1
Figure 1. Patients and hospitalizations
Flowchart showing patient selection, total number of hospitalizations, hospitalization exclusion criteria and 30-day readmission rate.
Figure 2
Figure 2. Index hospitalizations causes and 30-day readmission rates per diagnosis
Left panel shows proportion of index hospitalizations by cause of hospitalization. Right panel shows readmissions rate by index hospitalization cause. CVD: cardiovascular diseases.
Figure 3
Figure 3. Adjusted extended Cox regression model
Hazard ratios and 95% confidence intervals for 30-day readmission.
See this image and copyright information in PMC

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