McDonald's on Tuesday missed US sales growth expectations for the second quarter as its value deals failed to sufficiently draw lower-income diners who have been cutting back restaurant spending due to growing economic worries. Comparable sales in the largest market for McDonald's grew 0.8%, below analysts' estimates of a 1.06% rise, according to data compiled by LSEG. 'Largest Market'"While our playbook is working around the world, we see an opportunity to raise the bar in the US and accelerate performance in our largest market," CEO Chris Kempczinski said. ADVERTISEMENTSofter DemandGlobally, comparable sales rose 1.3%, slowing from a 3.8% jump a year ago. Sales in McDonald's international operated markets segment, which includes major European nations, rose 1.5%, down from 4% a year ago.