Core Insights - The research highlights the significant impact of family structure, relationships, environment, and function on children's mental health [1][2][4] Group 1: Family Structure - Divorced families have the most detrimental effect on children's mental health, with a 42% higher likelihood of negative mental health outcomes compared to children from non-divorced families and a 40% lower chance of positive mental health [2] - Single-parent and blended families also negatively affect children's mental health, while grandparent-led families have a lesser impact [2] - Only-child families show a positive influence on mental health, with an 11% lower chance of negative mental health outcomes and a 17% higher chance of positive mental health compared to non-only children [2] Group 2: Family Relationships - Family relationships, including marriage, parent-child, and sibling dynamics, significantly influence children's mental health, with positive relationships alleviating depression and anxiety [3] - The impact of positive parent-child relationships on depression is 70.75%, while positive marriage relationships account for 16.68% [3] - Negative parent-child relationships contribute 52.34% to depression, while negative marriage relationships account for 25.07% [3] Group 3: Family Environment - The psychological environment of the family is more crucial for children's mental health than the physical environment, with socioeconomic status and positive parenting styles acting as protective factors [5][6] - Negative parenting styles are identified as risk factors for children's mental health [5] Group 4: Family Function - Good family functioning can reduce the risk of anxiety and depression in children, with emotional connection, communication, norms, and problem-solving abilities being key components [7] - The influence of family communication and problem-solving on children's happiness is greater than that of emotional connection and norms [7]