Table 3 Pre-operative predictors of failure of endometrial ablation

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

 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

 Anteverted

1.00

–

–

 Retroverted

1.40

0.79–2.46

.25

 Midposition

1.51

0.46–4.95

.49