Rising fee income and strong cost controls helped two large banks report double-digit earnings gains Thursday.

Cleveland-based KeyCorp said first-quarter profits jumped 11%, to $235 million. At BankBoston Corp., earnings shot up 15%, to $238.3 million. "The trend has been fee income," said Frank Barkocy, an analyst with Josephthal & Co. "And I'd say it's been right across the board from service charges on deposits to trust income to mortgage servicing."

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