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Table 2 Statistical analysis on prognostic factors

From: First-generation endometrial ablation revisited: retrospective outcome study—a series of 218 patients with premenopausal dysfunctional bleeding

Therapy after fgEA?

None

Yes, but no hysterectomy

Yes, but hysterectomy

p value

Statistical test

 

Group 1

Group 2

Group 3

  

Dysmenorrhea associated?

 No (179 patients)

154 (71 %)

10 (5 %)

15 (7 %)

0.0921

Chi-square

 Yes (39 patients)

28 (13 %)

4 (2 %)

7 (3 %)

  

History of caesarian section

 No (177 patients)

148 (68 %)

11 (5 %)

18 (8 %)

0.9654

Chi-square

 Yes (41 patients)

34 (16 %)

3 (1 %)

4 (2 %)

  

Duration of preoperative blood loss

 >12 months (160 patients)

133 (46 %)

10 (3 %)

17 (6 %)

0.9935

Chi-square

 6–12 months (45 patients)

38 (13 %)

3 (1 %)

4 (1 %)

  

 <6 months (13 patients)

11 (4 %)

1 (<1 %)

1 (1 %)

  

Mean age at time of EA in years

42 ± 4.88

43.64 ± 5.98

39.77 ± 5.28

0.0004

Analysis of variance

Pre-versus perimenopausal age at time of fgEA

 Premenopausal

121 (56 %)

8 (4 %)

20 (9 %)

0.0433

Chi-square

 Perimenopausal

61 (28 %)

9 (3 %)

2 (1 %)

  

Nulliparous versus parous

 Nullipara (13 patients)

10 (5 %)

1 (<1 %)

2 (1 %)

0.7828

Chi-square

 Para (205 patients)

172 (79 %)

13 (6 %)

20 (9 %)

  

History of sterilization?

 No (166 patients)

139 (64 %)

10 (5 %)

17 (8 %)

0.9084

Chi-square

 Yes (52 patients)

43 (20 %)

4 (2 %)

5 (2 %)

  
  1. Mean (±standard deviation) or fraction (a total of 218 patients)