There is an other category under one point in this schema. The purpose is for insertion of any additional risk factor that is proven to be a proven factor that increases risk. That factor would deserve a score of at least one. In the many years since this form was created a number of important risk factors have been identified. To orgue that the score needs revalidation is incorrect since assigning each of the risk factors one point is all the validation that is necessary providing the original documentation of risk is based on ahrd evidence