In multivariate logistic regression analysis for risk factors (Table 2), PJP was independently associated with Rituximab use (OR 11.47 (95%CI 1.5–87.7), p = 0.019), high-dose steroid treatment (OR 4.39 (95%CI 1.52–12.66), p = 0.006), lymphopenia (OR 8.13 (95%CI 2.48–26.61), p = 0.001), low albumin (OR 0.15 (95%CI 0.04–0.54), p = 0.004) and low BMI (OR 0.80 (95%CI 0.68–0.93), p = 0.018). Here, ALB is linked to lymphopenia.