Connie Rees

280 Pain relief during labour (Epidural or Morphinomimetics) 1,081,218 (23.4%) 2,044 (25.8%) P<0.001 Episiotomy 1,084,463 (23.5%) 2,357 (29.7%) P<0.001 Hospital Admission Duration of hospital stay (days, Median (IQR)) 2,498,476 (53.9%) 1.00 (IQR 2) 5,350 (67.5%) 2.00 (IQR 3) P<0.001 Maternal Mortality +/- 0.0% P<0.001 Uterine Rupture +/- 0.0% P=0.544 Endometritis/Puerperal Fever +0.1% P=0.002 *Calculated using chi-squared analysis for dichotomous outcomes, T-test for normally distributed continuous variables, and the Mann-Whitney U test for abnormally distributed continuous variables ** In some cases, no absolute values are reported due to data privacy restrictions. Instead the relative difference in percentages is shown between the adenomyosis population versus the general population. . In some cases, this leads to percentages not adding up to 100%. ***Threatened prematurity: admittance due to suspicion of threatened premature delivery due to either cervical insufficiency, premature contractions, or preterm premature rupture of membranes. No significant differences were found for maternal mortality between groups. Outcomes of multivariate logistic regression are summarised in Figure 11.2 (as aOR’s with 95% CI) for the majority of obstetric and neonatal outcomes.

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