Supporting minority youths' mental health during COVID-19: the role of neighborhood composition.

Ethnic minority youths living in areas with lower levels of ethnic residential segregation had better mental health outcomes compared to peers living in more homogenously Chinese neighborhoods.

• The study was conducted in Singapore, a multi-ethnic city-state with a large Chinese majority and long-standing policies to ensure sociospatial ethnic mix within neighborhoods.
• Four waves of survey responses of over 3000 youths were collected between 2019 and 2022.
• Neighborhood characteristics included residential ethnic and socioeconomic segregation, built density, and average housing prices.
• Lower ethnic residential segregation in Singapore's context is characterized by greater co-ethnic density for minority groups.

The protective relationship of experiencing greater co-ethnic density for minority youths dissipated during the height of the COVID-19 pandemic in 2020.

• Multi-level models revealed a three-way interaction between individual ethnicity, neighborhood-level co-ethnic density/residential segregation estimates, and survey wave.
• The dissipation of the protective effect coincided with the period of most severe pandemic restrictions and reduced in-person interactions.
• Individual observations were nested within individual participants with random intercepts fitted for each participant to account for unobserved individual-specific effects.

Latent class growth analysis identified distinct 'typical' mental health trajectories across survey waves that varied by ethnic identity and residential co-ethnic density exposure.

• The second analytical approach modelled 'typical' mental health trajectories across the survey waves using latent class growth analysis (LCGA).
• Multinomial logistic regression predicting latent class membership with covariates was fitted to analyse whether youths' ethnic identities and residential co-ethnic density/segregation exposure related to different mental health trajectories.
• Results indicated that both ethnic identity and neighborhood composition were associated with latent class membership.

Living in areas with higher co-ethnic density for minority groups and lower spatial concentration of majority ethnicity residents was associated with protective effects on minority youths' mental health.

• The study used a spatial measure of neighborhood-scale residential segregation to estimate neighborhood composition.
• The protective effect was observed for ethnic minority youths specifically, in contrast to those in more homogenously Chinese neighborhoods.
• This relationship was observed across the study period from 2019 to 2022, though moderated by pandemic timing.

The protective effect of greater residential ethnic mix was found to be contingent on in-person interactions, which were severely reduced during the height of the pandemic.

• Safe distancing measures during COVID-19 are proposed as the mechanism explaining the dissipation of the co-ethnic density protective effect in 2020.
• The authors underscore 'the need for initiatives to maintain social connectedness within one's neighborhood even in the face of safe distancing measures.'
• The finding suggests that co-ethnic neighborhood composition operates through social interaction pathways rather than purely structural or compositional ones.

Singapore provides a distinct research context compared to the U.S. for studying neighborhood ethnic composition and health, as racial/ethnic clustering is not intrinsically intertwined with racial discrimination.

• The authors note that existing studies linking neighborhood ethnic composition to health tend to be based in the U.S., 'where racial/ethnic clustering is intrinsically intertwined with racial discrimination, making it hard to unpack the impact of neighborhood composition on mental health.'
• Singapore has long-standing policies to ensure sociospatial ethnic mix within neighborhoods, providing a policy-regulated rather than market-driven segregation context.
• This context allows for examining the role of co-ethnic density independent of the confound of racial discrimination linked to segregation.