Fig. 2From: Dynamics of toxigenic Clostridium perfringens colonisation in a cohort of prematurely born neonatal infantsKaplan-Meier plots for each of the four significant factors in the multivariate model. X axis shows the infant day of life. Y axis shows the probability of colonisation for an infant when stratified according to quartiles (1st – 4th) of varying clinical factors: a) Days of CPAP oxygen, b) Days of maternal milk feeds (excluding breast feeds), c) Days of breast feeding and d) Days of antibiotics usage. Colour codes for the quartiles are shown in the top right of each subplotBack to article page