Table IV.A.2  National totals for enrollees and cost of hospitalization and physician service health plans for the private sector by type of indemnification; United States, 2017
Purchased plans Total
(in thousands of persons)		 Standard error
Total enrollees 25,178 405
Active enrollees 24,302 392
Enrollees through COBRA 500 27
Retired enrollees 376 41
Enrollees with single coverage 15,183 247
  Total
(in millions of dollars)		 Standard error
Total costs 254,605 4,676
Employer contribution single coverage 72,446 1,369
Employee contribution single coverage 23,112 498
Employer contribution non-single* coverage 104,402 2,649
Employee contribution non-single* coverage 54,645 1,310
Self-insured plans Total
(in thousands of persons)		 Standard error
Total enrollees 38,043 744
Active enrollees 35,664 701
Enrollees through COBRA 757 29
Retired enrollees 1,622 144
Enrollees with single coverage 19,332 363
  Total
(in millions of dollars)		 Standard error
Total costs 431,634 9,531
Employer contribution single coverage 93,006 1,863
Employee contribution single coverage 30,969 814
Employer contribution non-single* coverage 221,253 5,819
Employee contribution non-single* coverage 86,406 2,216

Source: Agency for Healthcare Research and Quality, Center for Financing, Access and Cost Trends. 2017 Medical Expenditure Panel Survey - Insurance Component.

Notes: Definitions and descriptions of the methods used for this survey can be found in the Technical Appendix. Totals may not sum exactly because of rounding.

* Non-single coverage includes both family and employee-plus-one coverage levels. This is a labeling change effective in 2010, however the estimates for prior years are comparable.