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. Author manuscript; available in PMC: 2015 Feb 25.
Published in final edited form as: Int J Tuberc Lung Dis. 2013 Dec;17(12):1552–1557. doi: 10.5588/ijtld.13.0239

Figure 4.

Figure 4

Kaplan Meier estimates of cumulative tuberculosis incidence rate in HIV-1 infected women between delivery and 1 year postpartum by various cut-points in CD4 cell count measured during pregnancy.

Note: In each plot, dashed lines represent the survival curve for women with CD4 <250 and <350 cells/μL and the bold lines represent survival curves for women with CD4>250 and >350 cells/μL. The risk table below each plot shows the number at risk (number of events) within each time interval represented on the x-axis.

p-values for the Log-rank test for equality of survival functions is 0.02 for CD4<250 compared to >=250 cells/μL and 0.08 for CD4<350 compared to >=350 cells/μL.