Finally, we would like to remind readers of our major findings. First, the high serum total cholesterol concentration (8.00 mmol/liter or greater, i.e., 309.4 mg/dl) was associated with nearly a two-and-a-half-fold risk of violent suicide. Second, the violent/nonviolent suicide ratio increased linearly from the lowest to the highest cholesterol category, climbing from 1.00 to 4.50. We suggest that the neurobiological background is different for violent and nonviolent suicides. We hope that future research will clarify the picture.