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. 2012 Jan 18;2012:0805.
Ref (type) Population Outcome, Interventions Results and statistical analysis Effect size Favours
Pictorial blood loss assessment (PBAC)

Systematic review
210 women
3 RCTs in this analysis
Pictorial blood loss assessment (PBAC) score <75 12 months
with progestogen-releasing IUD
with endometrial ablation
Absolute results not reported

OR 0.28
95% CI 0.14 to 0.58
Moderate effect size endometrial ablation

Systematic review
281 women
5 RCTs in this analysis
PBAC score <75 12 months
with progestogen-releasing IUD
with endometrial destruction
Absolute results not reported

RR 1.19
95% CI 1.07 to 1.32
NNT = 7
95% CI 5 to 19
Small effect size endometrial destruction

Systematic review
127 women
2 RCTs in this analysis
Mean PBAC score 12 months
with progestogen-releasing IUD
with endometrial destruction
Absolute results not reported

Mean difference 44.07
95% CI 33.01 to 55.12
Effect size not calculated endometrial destruction

Systematic review
Number of women not reported
5 RCTs in this analysis
Mean PBAC score 12 months
with progestogen-releasing IUD
with endometrial ablation
Absolute results not reported

WMD +7.45
95% CI –12.37 to +27.26
Not significant
Amenorrhoea

Systematic review
210 women
3 RCTs in this analysis
Amenorrhoea 12 months
with progestogen-releasing IUD
with endometrial ablation
Absolute results not reported

OR 0.75
95% CI 0.36 to 1.54
Not significant

Systematic review
209 women
4 RCTs in this analysis
Amenorrhoea 12 months
with progestogen-releasing IUD
with endometrial ablation
Absolute results not reported

RR 1.27
95% CI 0.82 to 1.95
Not significant

Systematic review
210 women
3 RCTs in this analysis
Amenorrhoea 24 months
with progestogen-releasing IUD
with endometrial ablation
Absolute results not reported

OR 1.3
95% CI 0.48 to 3.53
Not significant

Systematic review
210 women
3 RCTs in this analysis
Amenorrhoea 36 months
with progestogen-releasing IUD
with endometrial ablation
Absolute results not reported

OR 0.6
95% CI 0.14 to 2.57
Not significant