Características de los partos de inicio espontáneo en fase de luna llena y fase de luna nueva

Abstract

Objective: to understand the number of births and the characteristics of labours with spontaneous onset on full moon phase and new moon phase. Method: a retrospective study conducted in the Hospital Infanta Cristina (Parla, Madrid) in the 2009-2015 period, where 11,948 labours were managed in total. Inclusion criteria: pregnant women with spontaneous-onset labour during the full moon and new moon phases (according to the moon phases determined by the National Geographic Institute); natural or instrumental delivery, or urgent caesarean section; full-term gestation (≥ 37 weeks and ≤ 42 weeks). Data were collected from the Register of Births. There was a descriptive analysis of variables. Results: in total, 4,086 labours were spontaneously initiated in the two moon phases studied: 2,035 (49.8%) in full moon phase and 2,051 (50.2%) in new moon phase. During the new moon phase, 1,005 (49.02%) were primiparous and 1,046 (50.98%) were multiparous. The mean (SD) weeks of gestation in the full moon sample were 39,31 (1.12), and in the new moon phase, 39,27 weeks. (1.10). No significant differences were detected between labours in the full moon and new moon phases. Conclusions: the number of births and the characteristics of labours with spontaneous onset are similar in the full moon and the new moon phases.