WASHINGTON — Congress’ nonpartisan budget analysts say changes Republican leaders have proposed in their health care bill to win House votes have cut the measure’s deficit reduction by more than half.

The Congressional Budget Office said Thursday that the new version would reduce federal shortfalls by $150 billion over the next decade. That’s $186 billion less than the original bill.

The deficit reduction figures dropped mostly because the updated measure has additional tax breaks and makes Medicaid benefits more generous for some older and disabled people.