Observational studyBMJ open2015
Preoperative factors affecting cost and length of stay for isolated off-pump coronary artery bypass grafting: hierarchical linear model analysis.
Observational study in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- Risk factors associated with unplanned readmissions and frequent out-of-hour emergency department visits after pediatric tracheostomy: a nationwide inpatient database study in Japan.European journal of pediatrics · 2025Article
- Pre-operative systemic inflammatory response index influences long-term survival rate in off-pump surgical revascularization.PloS one · 2022Article
- Predicting Postoperative Length of Stay for Isolated Coronary Artery Bypass Graft Patients Using Machine Learning.International journal of general medicine · 2020Article
- Off-Pump Coronary Artery Bypass Grafting: 30 Years of Debate.Journal of the American Heart Association · 2018Review
- Article
- Factors associated with length of stay following trans-catheter aortic valve replacement - a multicenter study.BMC cardiovascular disorders · 2017Article
- Hospital mortality of patients aged 80 and older after surgical repair for type A acute aortic dissection in Japan.Medicine · 2016Observational
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine the effect of preoperative patient and hospital factors on resource use, cost and length of stay (LOS) among patients undergoing off-pump coronary artery bypass grafting (OPCAB).
designObservational retrospective study. SETTINGS: Data from the Japanese Administrative Database.
participantsPatients who underwent isolated, elective OPCAB between April 2011 and March 2012. PRIMARY OUTCOME MEASURES: The primary outcomes of this study were inpatient cost and LOS associated with OPCAB. A two-level hierarchical linear model was used to examine the effects of patient and hospital characteristics on inpatient costs and LOS. The independent variables were patient and hospital factors.
resultsWe identified 2491 patients who underwent OPCAB at 268 hospitals. The mean cost of OPCAB was $40 665 ±7774, and the mean LOS was 23.4±8.2 days. The study found that select patient factors and certain comorbidities were associated with a high cost and long LOS. A high hospital OPCAB volume was associated with a low cost (-6.6%; p=0.024) as well as a short LOS (-17.6%, p<0.001).
conclusionsThe hospital OPCAB volume is associated with efficient resource use. The findings of the present study indicate the need to focus on hospital elective OPCAB volume in Japan in order to improve cost and LOS.
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