Table 1. Sociodemographic and Health Plan Characteristics of Enrollees, by Mental Health Parity Status of the Health Plan^a.

Characteristic	No Parity (n = 24 220)	Intermediate Parity (n = 19510)	Full Parity (n = 4348)
Enrollees
Age, mean (SD), y	65 (15)	65 (15)	67 (14)
Female, %	60	59	61
Race, %b
White	81	85	86
Black	13	11	9
Other	6	5	5
Below poverty level, %c	11	10	10
Attended college, %d	33	32	35
Plans
Region, %
Northeast	30	34	29
South	31	37	18
Midwest	12	13	19
West	27	16	35
No. of Medicare enrollees in plan, %
0-24 999	15	18	30
25000-49 999	45	36	63
≥50000	40	47	7
Age of plan, y, %
<10	12	15	20
10-24.9	73	49	50
≥25	14	36	29
Tax status, %
Not-for-profit	25	17	64
For-profit	75	83	36

^aPercentages may not total 100 because of rounding. Parity was defined based on whether the health plan's mental health cost sharing was: (1) less than or equal to primary care cost sharing (full parity); (2) greater than primary care cost sharing but less than or equal to specialist cost sharing (intermediate parity); or (3) greater than both primary care and specialty cost sharing (no parity).

^bRace was derived from the Medicare enrollment file.

^cThis category denotes the mean percentage of individuals living in the enrollee's zip code area who were aged 65 years or older and reported income less than the federal poverty level.

^dThis category denotes the mean percentage of individuals living in the enrollee's zip code area who were aged 65 years or older and who reported attending college.