CD4 and pneumocystosis: Notably, of these two variables, despite having been previously identified as PJP mortality factors [11], CD4+ T cell counts only yielded a hazard ratio of 0.994 (95% CI 0.989–1.000) while MDA5+ DM had a much higher HR of 3.254 (95% CI 1.209–8.756) (Table 3).