NEW YORK (Reuters) - Willis Group Holdings Ltd , the third largest global insurance broker, said Wednesday that its fourth-quarter net income fell about 35 percent, hurt by declines in foreign currency and integration costs from a recent acquisition.

Net income was $62 million, or 37 cents a share, down from $95 million, or 66 cents a share, in the year-earlier quarter.

The company said its acquisition last October of Hilb Rogal & Hobbs Co trimmed about 3 cents off of its fourth-quarter per share earnings. Foreign currency translation - primarily the strengthening of the U.S. dollar versus the British pound - cut into earnings by about 26 cents a share, Willis added.

However, revenue rose about 25 percent to $799 million, largely due to the HRH acquisition.

Willis, which competes with larger rivals Aon and Marsh & McLennan Cos in helping commercial clients find insurance, said it would suspend its practice of giving an annual earnings forecast, citing its inability to predict the "potential impact of the uncertainty of the global economy on current insurance pricing or on potential changes in the buying decisions of clients".

Shares of Willis, which has large operations in New York and London, fell 0.5 percent in post-market trading after rising 2.6 percent in the regular session to $22.37 a share. The stock is down about 35 percent over the last 12 months.