Research Article

Both Chloroquine and Lopinavir/Ritonavir Are Ineffective for COVID-19 Treatment and Combined Worsen the Pathology: A Single-Center Experience with Severely Ill Patients

Figure 3

Comorbidity prevalence per group. The prevalence of relevant comorbidities like hypertension, diabetes, COPD, cardiovascular disease, and chronic bronchitis was calculated for each treatment group. L/R: lopinavir/ritonavir; Chlo: chloroquine; L/R+Chlo: lopinavir/ritonavir plus chloroquine; ST: standard treatment; COPD: chronic obstructive pulmonary disease.
(a) L/R
(b) L/R+CHLO
(c) CHLO
(d) ST