Fig. 2
From: Analysis of risk factors progression of preterm delivery using electronic health records
Timeline of the clinical history for different pregnancies included in the cohort. Each line in the figure depicts a mother’s history timeline. The dots on the lines represent delivery events. Green dots represent full-term deliveries, while red dots represent preterm deliveries. The post delivery visits were excluded from the data in the analyses. The dark gray portion before the delivery event is the time gap between the analysis time point and delivery. The data in this time interval were also omitted from the mother’s history