Performance Measurement Network

Question: PSC Certified Hospitals: Sampling Methodology to Use for CSTK 1 for 2019

For a PSC Certified Hospital that is presently sampling, is there a sampling methodology that should be followed for CSTK-01 NIHSS? Can the STK sampling methodology be used since it is a PSC Certified Hospital? Is there an area within the 2019 manual that describes the methodology to be used?


There are different sampling methodologies for the STK and CSTK measures. Please refer to the CSTK_List PDF document in the specifications manual for the methodology to use for CSTK-01.

CSTK-01 is comprised of 2 sub-populations; Subpopulation 1 Ischemic Stroke Patients Without a Reperfusion Procedure and Subpopulation 2 Ischemic Stroke Patients With IV/IA t-Pa or a Mechanical Reperfusion Procedure. If stroke patient discharge volume for the reporting month allows for sampling from both sub-populations, then the MINIMUM SAMPLE SIZE requirement is 28 records, i.e., 14 records from EACH subpopulation.

Thank you for your inquiry.

Question Details
Focus area(s): Chart Abstracted Measure Specifications – Clinical
Related documents: STK,
Manual: Current Manual (current data collection period; prior to data transmission)

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