Abstract
Objective This study investigated the effect of the number of close friends (within and outside of social housing neighbourhoods) on the emotional well-being of men and women in social housing neighbourhoods in China. Methods Data (n = 535) were collected in 13 social housing neighbourhoods in Guangzhou from September to December 2013 using the random sample method. The t-test, chi-square test, and linear regression analysis were used to analyse the factors influencing residents' emotional well-being. Results Having a greater number of close friends living within the social housing neighbourhood had a significantly positive association with the respondents' emotional well-being (regression coefficient = 0.473). The number of close friends living in nearby neighbourhoods was only positively related to women's emotional well-being (coefficient = 0.433). Conclusions These results highlight the importance of friendship for residents' emotional well-being. Especially for women, friendship outside the social housing neighbourhood is essential for good mental health. This conclusion is based on analysis of cross-sectional data, and reflects the directionality of social associations. The mental health of the poor warrants greater attention in China.