Table 2.

Comparison of Medicare Advantage Health Plans for HEDIS and CAHPS Measures by Measurability and by HESS

		n	Mean enrolment	Percent Hispanic	Percent Black	Percent Asian/Pacific Islander	Percent dually eligible	Mean overall HEDIS or CAHPS stars
HEDIS HESS	Unmeasurable	55	7917	15.0%	4.2%	2.1%	8.3%	3.2
	Measurable	343	48,230†	13.0%†	13.4%‡	4.4%	28.5%‡	3.4*
	Low (1–2 stars)	33	18,773	6.2%	7.4%§	2.6%	14.5%‖	2.8¶
	Medium (2.5–3.5 stars, ref)	182	49,837	12.5%	12.8%	4.7%	40.0%	3.3
	High (4–5 stars)	128	53,541	15.5%	15.8%	4.4%	28.6%	3.9¶
CAHPS HESS	Unmeasurable	204	48,990	3.7%	6.2%	2.0%	7.6%	3.7
	Measurable	184	37,134	21.2%‡	16.3%‡	6.2%‡	45.4%‡	3.0‡
	Low (1–2 stars)	13	10,170	21.9%	13.8%	8.4%	61.4%	2.1§
	Medium (2.5–3.5 stars, ref)	101	30,118	24.9%	19.2%	6.3%	48.4%	2.6
	High (4–5 stars)	70	52,264	15.9%§	12.7%‖	5.5%	38.2%	3.7¶

*p < 0.05, ^†p < 0.01, ^‡p < 0.001 for difference from unmeasurable plans, where measurable plans have at least 100 completed surveys and reliability of at least 0.7 for any SRF group on the MA Consumer Assessment of Healthcare Providers and Systems (CAHPS) or the Healthcare Effectiveness Data and Information Set (HEDIS), respectively. Limited to plans with an overall MA CAHPS or HEDIS Star Rating

^§p < 0.05, ^‖p < 0.01, ^¶p < 0.001 for difference of high- and low-scoring measurable HESS plans from medium measurable HESS plans