McDonald’s global same-store sales rose a stronger-than-expected 2.6 percent in May as the fast-food chain’s expanded menu helped attract customers.  Analysts were expecting a 1.9-percent increase in global sales at restaurants that have been open at least 13 months.

McDonald’s is reinvigorating its Dollar Menu in the United States with additional items and aggressive marketing, while also launching value menus in other countries that do not have one.  The company said system-wide sales in May rose 3.6 percent or 5.2 percent in constant currencies.

Same-store sales in the United States rose 2.4 percent ahead of the analysts’ projected 2.1-percent increase.  The company attributed the growth to the introduction of a wide range of chicken options, including the new Egg White Delight sandwich, Premium McWraps, and the ongoing appeal of everyday value.

In Europe, same-stores sales were up 2 percent, topping the analysts’ forecast for 1.2-percent growth.  The Asia/Pacific, Middle East, and Africa region posted a 0.9-percent increase.  McDonald’s said avian influenza contributed to negative results in China.