McDonald's Inc. says a key sales comparison edged down in the U.S. in January, but results were stronger in the rest of the world.

Sales in stores open at least 13 months fell 0.7 percent in the U.S. They rose 4.3 percent in Europe, Asia/Pacific, Middle East and Africa.

The figures is considered a key indicator of a restaurant chain's health because it excludes the effects of new restaurants and restaurant closings.

Total sales rose 9.1 percent.

McDonald's says it is still outpacing its competitors in the U.S. Its breakfast Dollar Menu and portable Mac Snack Wrap were popular offerings.

McDonald's also says it will take a $40 million to $50 million tax charge in the first half related to closing 430 restaurants in Japan.