Table 94Summary clinical evidence profile, Comparison 5: Diet compared to cOCP for endometriosis

OutcomesIllustrative comparative risks (95% CI)Relative effect (95% CI)No of participants (studies)Quality of the evidence (GRADE)
Assumed riskCorresponding risk
cOCPDiet
Endometrioma recurrence1150 per 1,000177 per 1,000
(79 to 398)		RR 1.18 (0.53 to 2.65)122
(1 study)		⊕⊕⊝⊝
Low2

CI: confidence interval; RR: risk ratio; cOCP: combined oral contraceptive pill

1

The recurrence of endometrioma was defined as the presence of cyst, detected by transvaginal ultrasonography, with a pattern suggesting an endometrioma more than 20 mm in diameter.

2

Confidence interval for estimate is very wide crossing 2 thresholds

From: 11, Management strategies

Cover of Endometriosis: diagnosis and management
Endometriosis: diagnosis and management.
NICE Guideline, No. 73.
National Guideline Alliance (UK).
© NICE 2017.

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