OAK BROOK, ILL. — McDonald’s Corp. said global comparable sales increased 6.7% in January. System-wide sales for restaurants worldwide increased 8.4%, or 9.1% in constant currencies, during January.

“January marks another month of sustained sales growth, demonstrating the ongoing appeal of McDonald’s winning combination of value, menu variety and convenience,” said Jim Skinner, chief executive officer. “Our focus on enhancing the McDonald’s experience through great-tasting, affordable food and beverage choices served in increasingly modernized restaurants is helping make McDonald’s our customers’ favorite place and way to eat and drink.”

U.S. comparable sales at McDonald’s were up 7.8% on breakfast options, the beverage line-up and the new Chicken McBites, the company said.

European comparable sales also were up 4%, driven by performance in the United Kingdom, Russia, Germany and France. Also in January, McDonald’s said comparable sales increased 7.3% in Asia/Pacific, Middle East and Africa, led by China and the timing of the Chinese New Year.