• PRXJA: Covered by private insurance through exchange/marketplace January

• PRXFE: Covered by private insurance through exchange/marketplace February

• PRXMA: Covered by private insurance through exchange/marketplace March

• PRXAP: Covered by private insurance through exchange/marketplace April

• PRXMY: Covered by private insurance through exchange/marketplace May

• PRXJU: Covered by private insurance through exchange/marketplace June

• PRXJL: Covered by private insurance through exchange/marketplace July

• PRXAU: Covered by private insurance through exchange/marketplace August

• PRXSE: Covered by private insurance through exchange/marketplace September

• PRXOC: Covered by private insurance through exchange/marketplace October

• PRXNO: Covered by private insurance through exchange/marketplace November

• PRXDE: Covered by private insurance through exchange/marketplace December

Beginning in Panel 18 Round 3/Panel 19 Round 1 (calendar year 2014), information was collected on whether respondents obtained health insurance through a federal or state health insurance exchange. Additionally, respondents reporting insurance from a group, directly from an insurance company or HMO, from an insurance agent, or from an "other" unspecified source were asked "Is this coverage through {state exchange name}?"

Persons who reported a source of insurance that was not through an exchange/marketplace (e.g. through a group or directly from an insurance company) but who answered yes when asked if the coverage was through the state-specific exchange were also classified as having exchange/marketplace coverage instead of being assigned to the category they originally reported. In addition to reporting coverage through an exchange/marketplace, coverage needed to have been identified as hospital/physician coverage, but not identified as having Medicare supplemental coverage.

MEPS respondents reporting public coverage were also asked whether the public coverage was obtained through a federal or state marketplace in case respondents were confused about whether the source of coverage was public or private. This approach is consistent with the health insurance questions in the Current Population Survey and the National Health Interview Survey. These variables should be considered unedited since some individuals with public coverage reported as through a marketplace may be edited to private exchange/marketplace coverage in later releases of MEPS data, once additional information on family income is available to aid in data edits.