Fig 1.
Flowchart of systematic review methodology.
Table 1.
Evidentiary table.
Fig 2.
Forest plot of the natural log of the 30-day readmission rate with 95% confidence interval.
Logit event rate = natural log of 30-day readmission rate.
Fig 3.
Funnel plot assessing publication bias.
Missing studies to the right of average and near the bottom indicate that the literature lacks studies with higher readmission rates and fewer patients, respectively. Logit event rate = natural log of 30-day readmission rate.
Fig 4.
Forest plot for studies examining all orthopedic subspecialties.
Logit event rate = natural log of 30-day readmission rate.
Fig 5.
Forest plot for studies examining spine.
Logit event rate = natural log of 30-day readmission rate.
Table 2.
Thirty-Day Readmission Rates Stratified by Subspecialty.
Fig 6.
Forest plot for arthroplasty studies.
Logit event rate = natural log of 30-day readmission rate.
Table 3.
Arthroplasty 30-Day Readmission Rates Stratified by Subspecialty.
Table 4.
Thirty-Day Readmission Rates Stratified by Data Source.
Table 5.
Thirty-Day Readmission Rates Stratified by Patient Insurance.
Table 6.
Thirty-Day Readmission Rates Stratified by Time of Data Collection.
Fig 7.
Regression plot of 30-day readmission rate versus time when patient enrollment began.
Regression line: y = 0.004x – 3.3. P-value = 0.00292. Logit event rate = natural log of 30-day readmission rate.
Table 7.
Pooled Causes of Readmission.
Table 8.
Risk Factors for Readmission with GRADE Analysis.