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Table 1 Univariable analysis of risk factors for re-intervention

From: Incidence and predictors of failed second-generation endometrial ablation

Variable Re-intervention (%) No Re-intervention (%) p value
Total patients 927 (15.6) 5009 (84.4)  
Age (years)
 Mean 41.59 42.94 < .001
 Age band < 35 90 (9.7) 388 (7.8)
 35–40 223 (24.1) 908 (18.1)
 40–45 324 (35.0) 1647 (32.9)
 45–50 233 (25.1) 1516 (30.3)
 > 50 57 (6.2) 550 (11.0)
Race
 Asian 3 (0.3) 35 (0.7) < .001
 Black 202 (21.8) 809 (16.2)
 White 685 (73.9) 4020 (80.3)
 Other 37 (4.0) 145 (2.9)
Weight (kg) 80.84 80.71 .60
Height (cm) 163.70 164.33 .07
BMI (kg/m2)
 Mean 30.17 29.89 .75
 < 18 1 (9.1) 10 (90.9)
 18–25 95 (10.3) 830 (89.7)
 25–30 113 (11.8) 845 (88.2)
 30–35 90 (13.9) 556 (86.1)
 35–40 46 (10.9) 375 (89.1)
 > 40 35 (11.2) 279 (88.9)
Ablation technique
 Uterine balloon 47 (14.2) 284 (85.8)  
 Hydrothermablation 349 (18.9) 1499 (81.1)
 Radiofrequency 531 (14.1) 3226 (85.9) < .001