Comparison of daily survival rates of males and females after ozone-exposure followed byK. pneumoniaeinfection. Experimental design was performed as described in the legend for Figure 1 and the Methods section. Data in Figure 3 are presented as percent survival. Survival of mice in the control male or female group (FA-exposed) was set as 100%, and survival in the corresponding O3 group was calculated as a percent of the control group (O3/FA × 100%). For statistical analysis, proportions (O3/FA absolute survival rates) for males and females were compared daily with Z-test. Significance between male and female mice was noted if p < 0.05 (indicated with an asterisk, *).