(Reuters) - London's main stock market index inched higher on Tuesday, helped by gains in healthcare shares and Burberry, which surged after its first-quarter update showed new designs from creative chief Riccardo Tisci were boosting sales.
The FTSE 100 <.FTSE> added 0.1% and the mid-cap FTSE 250 <.FTMC> was roughly flat by 0711 GMT as investors awaited U.S. retail sales data and more corporate earnings reports to assess the health of the world's largest economy.
Luxury brand Burberry <BRBY.L> rose 6.5% to a near one-year high after it posted a stronger-than-expected rise in first-quarter comparable store sales and affirmed its annual forecast.
A.G.Barr <BAG.L> tumbled more than 23% on the mid-cap index after a challenging start to the year led the Irn-Bru maker to warn that its annual profit would sink 20% compared with last year.
(Reporting by Shashwat Awasthi in Bengaluru; Editing by Arun Koyyur)
