Fig. 1
Intensity of perinatal care at 24–25 weeks’ gestation in French level 3 hospitals. Perinatal intensity is calculated as the ratio of babies born at 24–25 weeks’ gestational age who were admitted into neonatal intensive care divided by the number of fetuses delivered at the same gestational age who were alive at maternal admission to hospital or when the decision to perform Caesarean section was made; weighted average intensity is indicated with a dashed line, 25th and 75th percentile limits with dotted lines (Reproduced from Morgan et al, BMC Medicine (2018) 16:227 [9])