LONDON, Feb 22 (Reuters) - WPP, the advertising group that owns Ogilvy and GroupM, said like-for-like revenue less pass-through costs rose 0.3% in the final quarter, as weak spending by U.S. tech, healthcare and retail clients held back growth in Britain and India.

The British company on Thursday reported a 0.9% like-for-like rise in its key revenue metric for the full-year to 11.86 billion pounds ($15 billion), in line with its guidance.

($1 = 0.7905 pounds) (Reporting by Paul Sandle; Editing by Kate Holton)