UnitedHealth Group Inc (UNH.N) posted a higher-than-expected fourth-quarter profit, helped by moderating use of medical services by its members and enrollment growth across its health insurance plans. UnitedHealth also announced a shuffling of its top management, including a new chief financial officer, that could set up succession plans at the largest U.S. health insurer by market value. UnitedHealth, the first insurer to report fourth-quarter results, backed its 2011 profit forecast while raising its revenue projection slightly.
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