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. 2021 Feb 17;372:n334. doi: 10.1136/bmj.n334

Table 3.

Prevalence of putative underlying risk factors for severe covid-19 by PCR cycle threshold (CT) (n=70 deaths)

Risk factor CT <40 CT ≥40 to <45 Total No (%)
Tuberculosis 18 4 22 (31)
Hypertension 17 2 19 (27)
HIV/AIDS 12 4 16 (23)
Alcohol misuse 10 2 12 (17)
Diabetes mellitus* 9 0 9 (13)
Cardiovascular disease 6 0 6 (9)
Smoking 5 0 5 (7)
Malnutrition 4 1 5 (7)
Anemia 5 0 5 (7)
Chronic obstructive pulmonary disease 3 1 4 (6)
Cancer 3 1 4 (6)
Asthma 2 1 3 (4)
Malaria 3 0 3 (4)
Chronic kidney disease 2 1 3 (4)
Epilepsy 2 1 3 (4)
Sickle cell disease 0 0 0 (0)

PCR=polymerase chain reaction.

*

Types 1 and 2 not distinguished.

Including emphysema and bronchitis.