The final open enrollment period for coverage on HealthCare.gov under the Obama administration ended Jan. 31 with 9.2 million people selecting plans on the site.

Thats down 400,000 from where open enrollment ended last year for the federal marketplace. It’s possible that confusion over the future of the Affordable Care Act, and cancelation of last minute advertisements reminding people to sign up could have caused the lower figure. Prior to this report, the enrollment pace was consistently larger than last year’s.

Most of the HealthCare.gov enrollment was comprised of renewals, as only 3 million new people signed up. That’s compared to 4 million new federal marketplace signups last year.

The tally released Friday does not include state-based marketplace enrollment which will be released in final open enrollment report March. However, as of Dec. 24, 2.8 million people had signed up in state-based marketplaces bringing the total number for 2017 open enrollment up to at least 12 million.

Total signups for the 2016 open enrollment was 12.7 million. So, total marketplace enrollment could still end up being higher than last year.

The email from the CMS with the final HealthCare.gov numbers had a notedly different tone than emails sent during the Obama administration. Officials who now work under the Trump administration noted that the individual insurance marketplace created by the ACA reached its enrollment tally despite “a market that experienced a 25% increase over the previous year in the average premium for the benchmark second-lowest cost silver plan as well as a 28% decline in the number of issuers participating over the past year.”

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Virgil Dickson reports from Washington on the federal regulatory agencies. His experience before joining Modern Healthcare in 2013 includes serving as the Washington-based correspondent for PRWeek and as an editor/reporter for FDA News. Dickson earned a bachelor’s degree from DePaul University in 2007.

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