The mean percentages of H2S stimuli that were missed (± SD) were 23.4 ± 17.5 and 44.9 ± 19.3 (high vs. low intensity, respectively) for healthy controls, and 22.5 ± 16.1 and 41.1 ± 20.2 for patients, yielding a highly significant main effect of odor intensity, F(1,63) = 77.2, p < .0001, but no effects involving group, all F(1,63) < 1.0, n.s.
