Ballweg · Best practice & research. Clinical obstetrics & gynaecology 2004 · Narrative review / historical case series analysis · n=>7,000

Impact of endometriosis on women's health: comparative historical data show that the earlier the onset, the more severe the disease.

Cited 208 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review synthesizing historical registry and clinical data without systematic review methodology

PubMed 15157638 · doi:10.1016/j.bpobgyn.2004.01.003 · record verified 2026-08-26

What was done

The author analyzed historical data from over 7,000 confirmed cases of endometriosis to examine symptom presentation patterns, systemic manifestations (endocrine, immunological, and gastrointestinal), and diagnostic timelines.

What was found

The abstract reports an average diagnostic delay of >9 years across >7,000 confirmed cases. No additional numerical data, statistical tests, or specific effect estimates regarding the relationship between age of onset and disease severity were provided in the abstract.

Why it matters

It highlights that endometriosis frequently experiences protracted diagnostic delays approaching a decade and argues for conceptualizing endometriosis as a multi-system systemic disorder rather than solely a localized pelvic condition.

Limits

The abstract contains minimal methodological detail regarding sample recruitment, data collection methods, control comparators, or statistical analyses. The specific metrics used to evaluate disease severity in relation to onset timing are not reported.

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