May 2 (Reuters) - Yum Brands Inc's sales at established outlets fell short of analysts' estimates on Wednesday, as fewer diners visited its Pizza Hut chains.
Worldwide sales at restaurants open for at least a year rose 1 percent, missing analysts' average estimate of a 2 percent increase, according to Thomson Reuters I/B/E/S.
Total revenue fell 3 percent to $1.37 billion. Analysts had estimated revenue of $1.09 billion. (Reporting by Aishwarya Venugopal in Bengaluru)