CD4 and pericardial effusion: Pericardial effusion: in a model of age, gender, HIV duration, CD4 cell count, pulse rate, haemoglobin level and WBC count, younger age was independently associated with a diagnosis of having a large pericardial effusion (OR 0.890, 95% CI: 0.792–0.999, p = 0.049) (Table 4).