Skip to main content

Table 2 Study Characteristics

From: Intrinsic patient factors predictive of inpatient rehabilitation facility discharge following primary total knee arthroplasty: a systematic review and meta-analysis

Author, Year. Country Study Title Study design;
Exclusion criteria (if provided)
Patient Factorsa TKA
Patients (N)
Age:
mean (±SD or range)
Female Gender: n (%) Statistical Analysisa
Anoushiravani et al., 2016. USA Assessing In-Hospital Outcomes and Resource Utilization After Primary Total Joint Arthroplasty Among Underweight Patients. Retrospective matched cohort.;
Weight loss and obesity, due to the nature of the study, were excluded from the matching criteria.
BMI 1315 70 (15–91 1029 (78) Univariate
Crawford et al., 2011. USA Preoperative Predictors of Length of Hospital Stay and Discharge Disposition Following Primary Total Knee Arthroplasty at a Military Medical Center. Retrospective cohort;
Bilateral, revision, or uni-compartmental TKA.
Age
ASA
BMI
383 64 (±10) 214 (56) Univariate and Multivariable regression
D’Apuzzo et al., 2015. USA The John Insall Award: Morbid Obesity Independently Impacts Complications, Mortality, and Resource Use After TKA. Retrospective matched cohort;
Obesity, due to the nature of the study, was excluded from the matching criteria. Morbidly obese patients who could not be matched were excluded.
BMI 180,585 61 (22–90) 135,541 (75) Univariate
Murphy et al., 2018. Australia The Impact of Older Age on Patient Outcomes Following Primary Total Knee Arthroplasty. Retrospective cohort Age
ASA
BMI
CCI
Gender
SF-12 PROM
SES
Smoking
2838 70 (± 9) 1882 (66) Univariate and Multivariable regression
Prohaska et al., 2017. USA Preoperative Body Mass Index and Physical Function are Associated with Length of Stay and Facility Discharge after Total Knee Arthroplasty Prospective cohort;
Bilateral procedures, simultaneous and staged within one year, and those with concomitant joint arthroplasty or ligament repair on the ipsilateral extremity were excluded.
Age
BMI
CCI
Gender
Hemoglobin
Smoking
VR-12 PROM
716 63 (±11) 425 (59) Univariate and Multivariable regression
Rissman et al., 2016. USA Predictors of Facility Discharge, Range of Motion, and Patient-Reported Physical Function Improvement After Primary Total Knee Arthroplasty: A Prospective Cohort Analysis Prospective cohort;
Simultaneous bilateral TKAs were excluded.
Age
BMI
CCI
Gender
ROM
VR-12 PROM
738 64 (±10) 422 (57) Univariate and Multivariable regression
Sayeed et al. 2016. USA Comparing In-Hospital Total Joint Arthroplasty Outcomes and Resource Consumption Among Underweight and Morbidly Obese Patients Retrospective matched cohort;
Weight loss and obesity, due to the nature of the study, were excluded from the matching criteria.
BMI 956 67 (15–91) 791 (83) Univariate
Schwarzkopf et al., 2016. USA Factors Influencing Discharge Destination
After Total Knee Arthroplasty:
A Database Analysis
Retrospective cohort Age
CCI
Gender
Ethnicity
28,611 68 17,930 (63) Multinomial regression
Sikora-Klak et al., 2016. USA The Effect of Comorbidities on Discharge Disposition and Readmission for Total Joint Arthroplasty Patients Retrospective cohort
Bilateral procedures were excluded as were patients undergoing joint arthroplasty for fracture.
Age
BMI
Diabetes
Gender
Smoking
VTE history
2009 65 (±11) 1347 (67) Univariate and Multivariable regression
  1. Abbreviations: ASA American society of anesthesiologists, BMI body mass index (kg/m2), CCI Charlson comorbidity index, Hb Hemoglobin, ROM range of motion, SES socioeconomic status, SF-12 12 item Short Form Health Survey (physical component score), VR-12 Veterans RAND 12 Item Health Survey, VTE Venous thromboembolism
  2. aPredictors and Statistical Analysis are in reference to the outcome of interest, Discharge Destination