Fig 4. Sensitivity analysis: Relationship between lymphopenia and acute brain injury and mortality of patients without cancer or diabetes, HIV, and steroid use.

(A) There was not a statistically significant relationship between lymphocyte count and acute brain injury as measured with delirium-free and coma-free days (DCFDs; p = 0.18). DCFDs refer to the number of days patients were alive and free of both delirium and coma in the first 30 days. (B) The hazard ratio between lymphopenia and 30-day mortality was not statistically significant (p = 0.25). The unit of lymphocyte count is 10³/μL blood. DCFDs refer to the number of days patients were alive and free of both delirium and coma in the first 30 days.