Development of a Risk-adjustment Model for the Inpatient Rehabilitation Facility Discharge Self-care Functional Status Quality Measure

Role of inpatient rehabilitation facility functional measures to predict community discharge after stroke

BACKGROUND

This study investigated the association between stroke severity, functional status measured by the Inpatient Rehabilitation Facility-Patient Assessment Instrument (IRF-PAI), and community discharge from IRF.

OBJECTIVES

Aim one examined the association between National Institutes of Health Stroke Scale (NIHSS) scores measured during the acute care stay and IRF admission functional status, measured by the admission IRF-PAI self-care and mobility functional measures, to deduce if functional measures can serve as a proxy for stroke severity. Aim two investigated the ability of the NIHSS and IRF-PAI admission functional measures to predict community discharge from IRF after stroke.

DESIGN

Retrospective cohort study using electronic health records and Uniform Data System. Medical Record file data from January 1, 2018, to December 30, 2019.

SETTING

Academic hospital-based IRF.

PARTICIPANTS

Five hundred forty-four patients transferred from acute care hospital to IRF after an ischemic or hemorrhagic stroke. Exclusion criteria included a transient ischemic attack, discharge against medical advice, death during IRF stay, or readmission to acute care within 48 hours of IRF admission.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Admission IRF-PAI self-care and mobility scores and discharge status from IRF.

RESULTS

Of the 544 patients, 76.7% had community discharge. NIHSS scores were significantly associated with IRF-PAI admission self-care scores across each NIHSS stroke category. There was no statistically significant association between NIHSS and IRF-PAI admission mobility score. IRF admission self-care and mobility scores were each statistically significant predictors of community discharge (odds ratio [OR] = 1.10, 95% confidence interval [CI]: 1.03-1.17; OR = 1.10, CI: 1.03-1.18, respectively). NIHSS scores were not a statistically significant predictor of community discharge (OR = 0.70, CI: 0.47-1.04) from IRF.

CONCLUSIONS

IRF-PAI self-care functional measure is associated with the NIHSS and can serve as a proxy for stroke severity. IRF-PAI self-care and mobility measures each predict community discharge.

Improvements and Residual Limitations Experienced by Patients With Guillain-Barré Syndrome Undergoing Inpatient Rehabilitation

ABSTRACT

The purposes of this study were to (1) describe the level of functional independence of patients with Guillain-Barré syndrome before and after inpatient rehabilitation, (2) determine whether the level of functional independence increased in each functional domain during inpatient rehabilitation, and (3) determine whether independence at the end of inpatient rehabilitation differed significantly between domains. Data from patients with Guillain-Barré syndrome discharged from inpatient rehabilitation settings in 2019 were obtained from the Uniform Data System for Medical Rehabilitation database. The primary variables analyzed were paired, dichotomous variables of the number of patients who achieved full independence in the admission and discharge scores for the activities that comprise the domains, subscales, and total of the Functional Independence Measure. All patients admitted to inpatient rehabilitation required assistance with at least one if not several domains of function, motor, as well as cognitive. By the end of the inpatient rehabilitation stay, for each domain of function, significantly more patients were independent ( P < 0.0001). Independence at the end of inpatient rehabilitation differed significantly between domains ( P < 0.0001); more patients achieved independence in the communication (87.5%) and social cognition (74.8%) domains while fewer patients achieved independence in the self-care (35.9%), transfers (34.2%), and locomotion domains (24.7%).

Physical Therapy Provider Continuity Predicts Functional Improvements in Inpatient Rehabilitation

BACKGROUND AND PURPOSE

Health care continuity has been linked to improved patient outcomes in a variety of professions and settings. Patients in inpatient rehabilitation receive a consistent dosage of physical therapy (PT) treatment; however, the providing physical therapist may vary. Despite the potential influence of PT provider continuity on functional outcomes in the inpatient rehabilitation setting, this association has not yet been studied.

METHODS

An observational retrospective chart review was conducted on 555 discharged inpatient rehabilitation patients. The relationship between the number of PT providers from whom a patient received care and Quality Indicator (QI) Mobility discharge scores was examined with Pearson product-moment correlation coefficients, initially with the entire patient group and secondarily with distinct diagnostic groups. Data from subgroups for whom a significant relationship was established were then included in a hierarchical linear regression analysis accounting for relevant covariates.

RESULTS

The number of PT providers correlated negatively with QI Mobility discharge scores ( r = -0.41, P ≤ 0.001). When controlling for QI Mobility admission scores, the "Stroke" (partial r = -0.17, P = 0.02), "Spinal Cord Injury" (partial r = -0.28, P = 0.002), and "Other Neuromuscular" (partial r = -0.35, P = 0.03) groups demonstrated significant inverse relationships. A hierarchical linear regression incorporating these 3 diagnostic groups revealed that the number of PT providers remained a significant predictor of QI Mobility discharge scores ( B = -1.50, P ≤ 0.001) when accounting for covariates.

DISCUSSION AND CONCLUSIONS

PT provider continuity is related to the functional improvement of neurologically impaired patients in inpatient rehabilitation.Video Abstract available for more insights from the authors (see the Video, Supplemental Digital Content 1, http://links.lww.com/JNPT/A405 , which discusses the findings of this work in a narrative format).

Validation of the Standardized Function Data Elements among Medicare Skilled Nursing Facility Residents

OBJECTIVE

To examine the distribution of admission and discharge functional abilities among Medicare fee-for-service beneficiaries with a skilled nursing facility (SNF) stay. Further, to assess the validity of the standardized discharge self-care and mobility data by examining their association to community discharge.

DESIGN

Observational study of SNF Medicare fee-for-service residents' self-care and mobility scores at admission and discharge.

SETTING AND PARTICIPANTS

Medicare beneficiaries with Medicare Part A SNF stays in 2017 from 15,127 Medicare-certified SNFs.

METHODS

We calculated self-care and mobility score frequencies and percentages at admission and discharge to describe the functional abilities of SNF residents; we examined discharge scores by percentage discharge to the community to evaluate item construct validity.

RESULTS

Between admission and discharge, SNF resident scores showed overall improvements in function for all self-care and most mobility activities. For example, between admission and discharge the percentage of residents independent with toileting hygiene and sit to lying increased from 3.7% and 8.2%, to 25.3% and 32.7%, respectively. For all but 2 data elements, residents with lower functional abilities had a lower percentage of being discharged into the community, and the percentage of residents discharged into the community increased as residents performed functional activities of self-care and mobility at higher score ratings. There was a consistent monotonic relationship between residents' discharge self-care and mobility scores and community discharge rates for all but 2 data elements.

CONCLUSIONS AND IMPLICATIONS

Our study found measurable improvements for each self-care and mobility function item for SNF Medicare Part A resident stays in 2017. The results also demonstrated a positive association between higher discharge self-care and mobility scores and higher discharge to community rates. These findings support the validity of the data elements in measuring functional abilities among SNF Medicare Part A residents.

The Influence of Prior Functional Status on Self-Care Improvement During a Skilled Nursing Facility Stay

OBJECTIVES

Older adults' prior health status can influence their recovery after a major illness. We investigated the association between older adults' independence in self-care tasks prior to a skilled nursing facility (SNF) stay and their self-care function at SNF admission, discharge, and the change in self-care function during an SNF stay.

DESIGN

Retrospective study of 100% national CMS data files from October 1, 2018, to December 31, 2019.

SETTINGS AND PARTICIPANTS

The sample included 616,073 Medicare fee-for-service beneficiaries who were discharged from an SNF between October 1, 2018, and December 31, 2019.

METHODS

The admission Minimum Data Set (MDS) was used to determine residents' prior ability (independent, some help, dependent) to complete self-care tasks before the current illness, exacerbation, or injury. Seven self-care tasks from MDS Section GG were used to calculate total scores (range 7-42 points) for self-care at admission, discharge, and the change in self-care between admission and discharge.

RESULTS

Most residents (62.0%) were independent, 35.3% needed some help, and 2.64% were dependent in self-care prior to SNF admission. Nearly 25% of residents with urinary incontinence, 28.8% with bowel incontinence, and 31.7% with moderate-severe cognitive impairment were independent in self-care prior to SNF admission compared with approximately 70% of residents without these conditions. Compared with residents who were dependent in self-care prior to SNF admission, those who were independent or needed some help had significantly higher self-care total scores at admission (5.67 vs 4.21 points, respectively) and discharge (6.44 vs 3.82 points, respectively) and exhibited greater improvement in self-care (3.48 vs 1.62 points, respectively).

CONCLUSIONS AND IMPLICATIONS

Our findings are evidence that the new MDS item for a resident's independence in self-care tasks before SNF admission is a valid measure of their prior self-care function. This is clinically useful information and should be considered when developing rehabilitation goals.

Assessing the Ability of Comorbidity Indexes to Capture Comorbid Disease in the Inpatient Rehabilitation Spinal Cord Injury Population

OBJECTIVE

To examine whether commonly used comorbidity indexes (Deyo-Charlson comorbidity index, Elixhauser comorbidity index, the Centers for Medicare and Medicaid Services [CMS] comorbidity tiers) capture comorbidities in the acute traumatic and nontraumatic SCI inpatient rehabilitation population.

DESIGN

Retrospective cross-sectional study.

PARTICIPANTS

Data were obtained from the Uniform Data System for Medical Rehabilitation from October 1, 2015 to December 31, 2017 for adults with spinal cord injury (SCI) (Medicare-established Impairment Group Codes 04.110-04.230, 14.1, 14.3). This study included SCI discharges (N=66,235) from 833 inpatient rehabilitation facilities.

MAIN OUTCOME MEASURES

International Classification of Diseases-10th Revision-Clinical Modifications (ICD-10-CM) codes were used to assess 3 comorbidity indexes (Deyo-Charlson comorbidity index, Elixhauser comorbidity index, CMS comorbidity tiers). The comorbidity codes that occurred with >1% frequency were reported. The percentages of discharges for which no comorbidities were captured by each comorbidity index were calculated.

RESULTS

Of the total study population, 39,285 (59.3%) were men and 11,476 (17.3%) were tetraplegic. The mean number of comorbidities was 14.7. There were 13,939 distinct ICD-10-CM comorbidity codes. There were 237 comorbidities that occurred with >1% frequency. The Deyo-Charlson comorbidity index, Elixhauser comorbidity index, and the CMS tiers did not capture comorbidities of 58.4% (95% confidence interval, 58.08%-58.84%), 29.4% (29.07%-29.76%), and 66.1% (65.73%-66.46%) of the discharges in our study, respectively, and 28.8% (28.42%-29.11%) of the discharges did not have any comorbidities captured by any of the comorbidity indexes.

CONCLUSION

Commonly used comorbidity indexes do not reflect the extent of comorbid disease in the SCI rehabilitation population. This work suggests that alternative measures may be needed to capture the complexity of this population.

Measuring Inpatient Rehabilitation Facility Quality of Care: Discharge Self-Care Functional Status Quality Measure

OBJECTIVE

To describe the calculation and psychometric properties of the discharge self-care functional status quality measure implemented in the Centers for Medicare & Medicaid Services' (CMS) Inpatient Rehabilitation Facility (IRF) Quality Reporting Program on October 1, 2016.

DESIGN

Medicare fee-for-service (FFS) patients from 38 IRFs that participated in the CMS Post-Acute Care Payment Reform Demonstration were included in this cohort study. Data came from the Continuity Assessment Record and Evaluation Item Set, IRF-Patient Assessment Instrument, and Medicare claims. For each patient, we calculated an expected discharge self-care score, risk-adjusted for demographic and baseline clinical characteristics. The performance score of each IRF equaled the percentage of patient stays where the observed discharge self-care score met or exceeded the expected score. We assessed the measure's discriminatory ability across IRFs and reliability.

SETTING

IRFs.

PARTICIPANTS

Medicare FFS patients aged ≥21 years (N=4769).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Facility-level discharge self-care quality measure performance score.

RESULTS

A total of 4769 patient stays were included; 57% of stays were in women, and 12.1% were in patients aged <65 years. Stroke was the most common diagnosis (21.8%). The mean±SD performance score was 55.1%±16.6% (range, 25.8%-100%). About 54% of IRFs had scores significantly different from the percentage of stays that met or exceeded the expected discharge self-care score in the overall demonstration sample. The quality measure showed strong reliability, with intraclass correlation coefficients of .91.

CONCLUSIONS

The discharge self-care quality measure showed strong discriminatory ability and reliability, representing an important initial step in evaluation of IRF self-care outcomes. A wide range in performance scores suggested a gap in quality of care across IRFs. Future work should include testing the measure with nationwide data from all IRFs.