Figure 8: Estimated probabilities of component membership as a function of birthweight among infants with mothers who have a previous preterm birth. Displayed are estimated probabilities of component membership as a function of birthweight among infants with mothers who have a previous preterm birth, along with 95% confidence intervals. (Table 2) shows the estimated probabilities of component membership among infants with mothers who have a previous preterm birth, averaged over birthweight in the sense of Equation (5).