Cumulative exposure to poor housing conditions and psychological well-being: Does the relationship differ for young and middle-aged adults and older adults?

OBJECTIVES: This study examined whether cumulative exposure to poor housing conditions is negatively associated with psychological well-being, and whether this association varies by age. METHODS: Using fifteen waves of the Korean Welfare Panel Study between 2005 and 2019 (118,500 person-observations), this study employed fixed-effects regression models to account for unobserved individual-level heterogeneity. Exposure to poor housing conditions ranged from 1 to more than 5 annual waves. To formally test for age heterogeneity, interactive models were estimated. RESULTS: The trajectories of change in psychological well-being associated with cumulative exposure to poor housing conditions were different between young and middle-aged adults and older adults. Among young and middle-aged adults, the levels of depressive symptoms increased in the first year of exposure but remained at a similar level since then. In contrast, with the persistence of poor housing conditions, older adults continued to develop greater depressive symptoms over time. Similar age differences were found for life satisfaction. As exposure to poor housing conditions accumulated, life satisfaction persistently declined among older adults, but not young and middle-aged adults. CONCLUSION: This study suggests that cumulative exposure to poor housing conditions has more adverse psychological consequences for older adults than young and middle-aged adults.

High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong.

Poor housing conditions are known to be associated with infectious diseases such as high Coronavirus disease 2019 (COVID-19) incidences. Transmission causes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in poor housing conditions can be complex. An understanding of the exact mechanism of transmission can help to pinpoint contributing environmental issues. Here, we investigated a Hong Kong COVID-19 outbreak in early 2021 in four traditional Tong Lau houses with subdivided units. There are more than 80 subdivided units of less than 20 m2 floor area each on average. With a total of 34 confirmed COVID-19 cases, the outbreak had an attack rate of 25.4%, being one of the highest attack rates observed in Hong Kong, and ranked among the highest attack rates in reported outbreaks internationally. Tracer gas leakage and decay measurements were performed in the drainage system and in the subdivided units to determine the transport of infectious aerosols by the owner-modified sophisticated wastewater drainage pipe networks and the poor ventilation conditions in some subdivided units. The results show that the outbreak was probably due to multiple transmission routes, i.e. by the drainage pipe spread of stack aerosols, which is enhanced by poor ventilation in the subdivided units.