Change-Minimum-Dataset-Health-Status-Index-EN - Health Quality Ontario (HQO)

INDICATOR NAME

Name

Change in Minimum Dataset Health Status Index (MDSHSI)

Alternate Name

Change in Minimum Dataset Health Status Index (MDSHSI)

INDICATOR DESCRIPTION

Description

Change in MDSHSI score among long-stay home care clients >65 years of age that had two interRAIHC assessments in a 365-day period

Indicator Status

Active

HQO Reporting tool/product

Ontario Health Teams: Quality

Dimension

Patient-centred

Type

Outcome

DEFINITION AND SOURCE INFORMATION

Unit of Measurement

Ratio

Calculation Methods

Clients with <2 interRAIHC assessments within 365d

Numerator including inclusion/exclusion

Change in MDSHSI score from first to most interRAIHC assessment

Denominator including inclusion/exclusion

Total population age 66 years or older with an interRAIHC assessment in the observation period (index assessment) and a second interRAIHC assessment within 365d prior. The index assessment is the most recent in the
observation period.

Adjustment (risk, age/sex standardization)- detailed

Model-based risk-adjusted via generalized regression (assuming a normal distribution and identity link function)
using individual-level data, controlling for age (continuous) and sex.

Data Source

InterRAI Quality of Life Survey, OHTAM (Ontario Health Teams Attribution Model), Registered Persons Database (RPDB)

Data provided to HQO by

Institute for Clinical Evaluative Sciences (ICES)

OTHER RELEVANT INFORMATION

Caveats and Limitations

interRAIHC data was not available in 2017/18 • For calculation of the MDSHSI from RAI data, see: Wodchis WP, Hirdes JP and Feeny DH. Health-related quality of life measure based on the minimum data set. Int J Technol Assess Health Care. 2003; 19(3): 490-506 • MDSHSI ranges from -0.03 to 1, with higher scores (approaching 1) indicative of good health. Therefore, a higher value (mean change score) is desirable for this indicator • A value of ≥0.03 is a clinically meaningful difference in MDSHSI • The MDSHSI was validated on the RAIHC assessment instrument, which is no longer used in Ontario. Data items collected on the interRAIHC assessment instrument (which was adopted in Ontario in March 2018) differs, notably for assessing mobility, which results in a marginally higher MDSHSI score. Interpretation requires caution.