From Sept. 10-16, total restaurant sales were up 1.4% compared to the same week a year ago. Pizza chains posted gains of 4.4% to push total quick service sales up 2%.
Casual-dining chains were hardest hit, down 11 percentage points to 5.8% over the same period last year, which had been up 5.2%. Midscale restaurant sales also fell 1.2%.
Since the attacks, "people are staying closer to home to watch TV and be with their families, and they just want quick and easy fuel," said Harry Balzer, vice president of NPD Group.