Chunk #4 — 3. Results — 3.1. An Overview of Theories and Mechanisms for Associations of Suicide vs. Smoking, Smoking Cessation or Use of Smoking Cessation Medications
Before reviewing the data on the association of smoking, cessation, and cessation medications with suicide, the article reviews possible reasons to believe such associations might exist. Proposed theories and mechanisms to explain such associations can be confusing because some theories completely contradict each other, and because theories differ in whether they are referring to the association of suicide with a) initiation of smoking, b) current smoking, c) cessation of smoking or d) medication to treat smoking. For brevity, this review will cover the later three associations but will not cover the association of suicide with initiation of smoking.