CD4 and HIV infectious disease: When we compared parameters of HIV infections and patients’ characteristics between multi-morbid and non multi-morbid patients, after adjusting for age and sex, we observed that all variables were significantly related with multi-morbidity status, except for CD4 cell count used as a continuous variable (by 100 cells/mm3); being ART naïve was not significantly different between groups, although the proportion of ART naïve patients was lower in the multi-morbid group (Table 2).