IL6 and pulmonary hypertension, primary, 1: Similarly, Wang et al. found that cytokine profiles were independent risk factors for PHT; specifically, multivariate analysis determined high maximum interleukin‐10 (IL‐10) and IL‐17A levels as independent risk factors for prolonged neutropenia, high maximum IL‐6 for prolonged anaemia and high IL‐2 baseline levels as protective factors for prolonged thrombocytopenia.26