Table 2.

Self-Reported Health Status of Enrollees in Medicare Advantage Case and Control Plans.

Health Status	Case Plans			Control Plans			Difference between Case and Control Plans (95% CI)*
	Earlier Enrollees	New Enrollees	Difference (95% CI)*	Earlier Enrollees	New Enrollees	Difference (95% CI)*	Unadjusted	Adjusted
Excellent or very good health	29.1%	35.3%	6.1 (2.6 to 9.7)	28.5%	30.0%	1.5 (−1.5 to 4.5)	4.7 (0.2 to 9.1)	4.7 (0.2 to 9.2)
Any limitation in moderate activities	56.1%	45.7%	−10.4 (−14.3 to −6.6)	56.2%	55.1%	−1.1 (−4.4 to 2.2)	−9.3 (−13.4 to −5.2)	−9.2 (−13.3 to −5.1)
Any difficulty walking	33.1%	25.1%	−8.1 (−11.7 to −4.4)	32.4%	31.7%	−0.8 (−3.9 to 2.4)	−7.4 (−10.3 to −4.5)	−7.4 (−10.4 to −4.5)
Physical Component Summary score†	39.2	41.3	2.1 (1.2 to 3.1)	39.2	39.4	0.2 (−0.7 to 1.0)	2.0 (0.8 to 3.2)	2.0 (1.0 to 3.1)

^*Differences in self-reported excellent or very good health, limitation in moderate activities, or difficulty walking are expressed in percentage points. Differences in Physical Component Summary scores are expressed in points.

^† Scores range from 0 to 100, with higher scores indicating better physical health.