Fig. 4.

A low CD4+ effector (CD45RA+/CD27−) percentage in BAL fluid at the time of surgical resection is a favorable prognostic indicator. Nineteen patients were studied. Results from BALi and BALc were pooled due to the lack of statistical differences between the 2 groups in any of the comparisons made in Figs. 2 or 3. All data points were stratified into high and low groups with values greater than the median considered high and values less than or equal to the median considered low. Kaplan–Meier survival analysis with the log-rank hypothesis test was used to compare survival between high and low groups