Correlates of decaffeinated coffee choice.

We sought to identify the illness risk factors associated with consumption of decaffeinated coffee in a sample of 2,677 adults. Women who drank decaffeinated coffee exclusively were more likely than other women to consume vitamin supplements and cruciferous vegetables, to use seat belts routinely, and to exercise regularly. Among men, those who drank decaffeinated coffee exclusively were more likely than others to have a low body mass index and to consume a low-fat diet and cruciferous vegetables. We conclude that people who drink decaffeinated coffee differ from others in ways that might provide information about the risk of illnesses.