For the roughly one in five ovarian cancer patients first diagnosed through emergency care rather than planned clinical pathways, the consequences extend far beyond the acute episode — they shape the entire treatment trajectory and ultimately survival. Understanding who arrives at diagnosis this way, and why, is critical to designing interventions that close one of oncology's most persistent equity gaps.
This PRISMA-compliant systematic review drew from 12 studies encompassing 127,395 women across high-income countries, synthesizing evidence on both the sociodemographic predictors and downstream outcomes of emergency-route ovarian cancer diagnosis. Older age and socioeconomic deprivation emerged as the dominant risk factors for this diagnostic pathway — a pattern consistent across studies despite limited confounder adjustment in many. Women diagnosed via emergency presentation faced significantly more advanced tumor staging at diagnosis, lower rates of receiving active treatment, and markedly poorer survival outcomes, even though the interval between diagnosis and treatment initiation was paradoxically shorter — likely reflecting clinical urgency rather than system efficiency.
This finding reinforces a troubling pattern documented across multiple cancer types: emergency diagnosis functions as a proxy for delayed detection, itself a product of intersecting barriers including limited health literacy, reduced access to primary care, and systemic underinvestment in symptom-awareness campaigns targeting high-risk demographics. Ovarian cancer's notoriously vague early symptomatology — bloating, pelvic discomfort, early satiety — compounds this problem, making symptomatic recognition campaigns particularly challenging to execute effectively. The exclusive focus on high-income countries is a notable limitation; the emergency-diagnosis burden in low- and middle-income settings may be substantially higher with even grimmer outcomes. Substantial heterogeneity across the included studies also prevents pooled effect-size estimates, rendering the review primarily descriptive. Still, for clinicians and health planners, the consistent signal is actionable: targeted outreach to older and socioeconomically disadvantaged women could meaningfully shift diagnosis toward earlier, more treatable stages.