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Table 3 Pre-operative predictors of failure of endometrial ablation

From: Prediction of unsuccessful endometrial ablation: a retrospective study

  Univariate analysis Multivariate analysis  
Variable Odds ratio 95% CI p value Odds ratio 95% CI p value β
Age (years) 0.93 0.89–0.96 <.01 0.93 0.90–0.97 <.01 − 0.070
Body mass index (kg/m2) 0.99 0.95–1.03 .61     
Dysmenorrhea 2.14 1.42–3.23 <.01 2.11 1.37–3.26 <.01 0.749
Duration of menstruation > 7 days 1.26 0.84–1.89 .27     
Intermittent or irregular bleeding 1.22 0.82–1.83 .33     
Menorrhagia 0.27 0.08–0.91 .03 0.21 0.06–0.77 .02 − 1.544
Myomas 0.92 0.56–1.49 .72     
Parity (no.) 0.88 0.73–1.07 .22     
Parity ≥ 5 11.17 1.33–93.60 .03 11.19 1.30–96.51 .03 2.415
Pre-treatment 0.63 0.39–1.03 .07 0.74 0.37–1.47 .39
Previous caesarean section 1.57 0.90–2.72 .11     
Smoking 0.73 0.45–1.18 .20     
Sterilisation 1.30 0.84–2.01 .24     
TED
 Thin, 0–3 mm 0.94 0.47–1.85 .85 1.11 0.54–2.30 .78
 Normal, 4–12 mm 1.00     
 Thick, > 13 mm 0.55 0.29–1.07 .08 0.56 0.27–1.16 .12
 Uterine cavity length (cm) 1.07 0.89–1.28 .49     
Uterus position
 Anteverted 1.00     
 Retroverted 1.40 0.79–2.46 .25     
 Midposition 1.51 0.46–4.95 .49     
  1. *Any form of treatment (medicamentous or surgical) prior to the EA