SynthesisBMC cancer2026
Physical activity, sedentary behavior and ovarian cancer risk in Asian populations: a scoping review and meta-analysis.
Synthesis in BMC cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
backgroundOvarian cancer (OC) exhibits significant ethnic and geographic disparities, with rising incidence in Asia contrasting global declines. While non-modifiable risk factors (e.g., genetics) are well-established, evidence for the role of modifiable factors like physical activity remains inconsistent, especially in Asian populations. This study systematically evaluates the association between physical activity, sedentary behavior, and OC risk in Asia.
methodsWe conducted a meta-analysis of seven studies (156,910 participants, 1,585 OC cases) from Japan, Korea, and China. Physical activity and sedentary behavior were assessed via self-reports. Meta-analysis was performed to pool RR estimates together with their 95% CI.
resultsRegular physical activity was associated with a 24% lower OC risk (RR = 0.76, 95% CI: 0.64-0.91; P = 0.002), despite high heterogeneity (I
conclusionsIn Asian populations, physical activity may protect against OC, while sedentary behavior may elevate risk. These findings underscore the need for dual public health strategies: promoting exercise and reducing sedentary time. Future research should standardize exposure assessments and include diverse Asian subpopulations to refine prevention guidelines.
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