Timing of singleton births by onset of labour and mode of birth in NHS maternity units in England, 2005–2014: A study of linked birth registration, birth notification, and hospital episode data
Fig 14
Rate ratios and confidence intervals for type of day differences by gestational age: Elective caesarean.
Vertical axes show rate ratios relative to the overall average for each gestational age group within each figure. Error bars show 99% confidence intervals. Likelihood Ratio Test of H0: Type of day differences do not differ between term, pre-term and post-term births.