Is SARS a Poor Man\u27s Disease? Socioeconomic Status and Risk Factors for SARS Transmission

This paper investigates the link between various risk factors, including socioeconomic status (SES), and the spread of Severe Acute Respiratory Syndrome (SARS) in Hong Kong in 2003. A comprehensive data set compiled by the author shows a negative and significant correlation between SARS incidence and various measures of income, but not years of education, unlike previous studies on other health conditions. The income-SARS gradient can be accounted for by controlling for pre-SARS housing values but not an array of measurable living conditions. Areas with more white-collar workers experienced a higher incidence rate, largely driven by the share of service and sales workers, after controlling for SES. These results have implications for the understanding of the SES-health link in the context of a contagious disease, the potential causality of the SES-SARS relationship and for future SARS containment strategies