House Speaker Paul Ryan said it's not important that the Congressional Budget Office didn't do an analysis on the final version of the American Health Care Act because the final amendment, which convinced conservatives and enough centrists to get on board to pass the bill, didn't do that much.

Ryan and his office have been criticized in recent days for not waiting for the independent analysis of the bill to be done before holding a vote on the House GOP bill. Ryan said on ABC Sunday the bill has been online for months in one form and previous versions of the bill received analysis from the budget office, so not waiting for a review of the bill following the amendment process wasn't a big deal.

"A three-page amendment is not going to dramatically alter that bill," he said Sunday on ABC's "This Week." "It does a narrow change to the bill."

Ryan called the attacks on the Republican process for passing the bill a "bogus attack from the Left" and said the GOP was plenty transparent.

During the process of passing the bill, the American Health Care Act received two committee markups and had many amendments proposed on the House floor. However, all of that happened about a month before the actual bill was passed before behind-the-scenes negotiations ended up producing two amendments, the MacArthur Amendment and the Upton-Long Amendment, which led to the bill's passage.

Those amendments did not receive any markups or public hearings, and the Congressional Budget Office did not analyze their effects. The analysis is expected to be completed in the coming week.

It's unclear how the bill will affect people with pre-existing illnesses or how many people could lose their insurance under the American Health Care Act.

Ryan said he expects the American Health Care Act to do much more for people with pre-existing illnesses than Obamacare because it will provide those people with more choices. He promised no one with a pre-existing condition would lose insurance or experience cost increases if they maintained continuous coverage.

"We have all these multiple layers of protection to make sure that these families and these people ... get affordable coverage and that's not happening in Obamacare," he said. "If you can't get a health insurance plan, what good is it? You can't get health insurance."

Ryan said he doesn't think the process of repealing the Affordable Care Act will end up costing Republicans in 2018.

"No, I'm not," Ryan said when he was asked if he's worried about an anti-Republican wave in 2018. "We're keeping our word and I would argue we would spell disaster for ourselves politically if we go back on our word. This is us keeping our word."