This document discusses different types of intimate partner violence (IPV) and associated risk factors. It identifies four main types: coercive controlling violence, violent resistance, situational couple violence, and family-only batterers. Substance abuse is strongly correlated with IPV and increases risks of injury and death. Common risk factors that increase the likelihood of a fatal outcome include the use of weapons, stalking, strangulation, abuse in front of others, and substance use. The document also discusses reasons why victims may not leave abusive relationships, such as fear of increased abuse or death, lack of financial resources, threats regarding children, lack of support systems, and Stockholm syndrome.