Among women who had a third or fourth degree tear at first birth, 24.2 % were delivered by elective caesarean section, compared with 1.5 % of women who did not tear at first birth. (sciencedaily.com)
Another claim about «life scripts» declares that «babies born by elective caesarean section (sometimes necessary) may have some of the following life scripts: «Life is something that happens to me» or «I don't like things happening suddenly when I am not ready». (dublindoula.com)
Contributing factors include women giving birth later in life, high blood pressure, obesity, smoking and the increased rates of elective caesarean sections which can result in preterm birth if there is ambiguity about the date of conception. (newscientist.com)