Fewer baby boomers are confident they’ll be financially prepared to retire this year than three years ago.

According to a study by the Insured Retirement Institute, only 35 percent of boomers surveyed this year said they are confident they’ll be able to save enough money to live through their retirement years.

That’s compared to the 37 percent of boomers who felt this way in 2011.

This year’s poll also found 28 percent of boomers are planning to retire after their 70th birthday, compared to the 17 percent who felt this way in 2011, and that 25 percent of them have delayed their retirement plans in the past 12 months.