The severe impact of Covid-19 on people from minority ethnic groups has been linked to air pollution and overcrowded and poor-standard homes by a study of 400 hospital patients.
It found patients from ethnic minorities were twice as likely as white patients to live in areas of environmental and housing deprivation, and that people from these areas were twice as likely to arrive at hospital with more severe coronavirus symptoms and to be admitted to intensive care units (ITU).
Minority ethnic groups were known to be disproportionately affected by Covid-19: they account for 34% of critically ill Covid-19 patients in the UK despite constituting 14% of the population. But the reasons for the disparity remain unclear.
The research is the first to examine the role of environmental and housing deprivation. Doctors praised the study but cautioned it has yet to be formally reviewed by other scientists and that additional, detailed studies in other areas are urgently needed.
The study also found patients from ethnic minorities were on average 10 years younger than the white patients, though the explanation for this is unknown. Age, frailty and underlying health conditions remain critical factors for all patients in determining the outcome of Covid-19.