April 29 (Reuters) - Restaurant Brands International Inc QSR.TO QSR.N missed analysts' estimates for first-quarter profit on Monday, hit by slowing growth at its Burger King, Tim Hortons and Popeyes Louisiana Kitchen chains.
Comparable sales at Tim Hortons fell 0.6 percent; while same-store sales at Burger King grew 2.2 percent in the reported quarter, less than 3.8 percent a year earlier. Restaurant Brands has been working on various promotional activities and loyalty programs to deal with mounting competition from rivals like McDonald's Corp (NYSE:MCD) MCD.N , Yum Brands Inc YUM.N and Dunkin' Brands Group Inc DNKN.O .
On an adjusted basis, Restaurant Brands earned 55 cents per share, while analysts on average had estimated 58 cents, according to IBES data from Refinitiv.
The company's adjusted net income fell to $255 million, or 55 cents per share, in the first quarter ended March 31, from $314 million, or 66 cents per share, a year earlier.
Total revenue rose to $1.27 billion from $1.25 billion.