More Americans than forecast filed applications for unemployment benefits last week, reflecting an unwinding of adjustments for seasonal swings at the start of a quarter.

Jobless claims increased by 46,000 to 388,000 in the week ended Oct. 13 from a revised 342,000 the prior period that was the lowest since February 2008, Labor Department figures showed today in Washington. The median forecast of 49 economists surveyed by Bloomberg called for a rise in claims to 365,000.

The typical pattern of large increases in unadjusted claims at the start of the quarter seems to have shifted by a week in one state, causing the adjusted data to become volatile, a Labor Department spokesman said as the figures were released to the press. Through the ups and downs, the level of firings has been little changed, indicating that a lack of hiring is the main reason payrolls have failed to strengthen.