Obesity

Association between overweight and obesity determined by body mass index and overall survival in patients with metastatic prostate cancer: a meta-analysis

Int J Obes (Lond)Published Systematic review and meta-analysis

Pooled result · OSResult — go to the resultPooled adjusted hazard ratio 0.79 95% CI 0.73–0.85

Authors' conclusion

Patients with mPC who have overweight or obesity, as defined by BMI, are associated with improved overall survival, particularly in those with mCRPC.

Study context

Population
Patients with metastatic prostate cancer (mPC); PubMed, Web of Science and Embase searched until February 202515 studies in 13 articles
Participants
18,280 patients
Comparison
Overweight/obesity vs normal weight
Outcome
Overall survival (OS)

Pooled result

OS

Pooled adjusted hazard ratio

0.79

95% CI 0.73–0.85

Overweight/obesityvs Normal weight
pooled adjusted HR 0.79 (95% CI 0.73–0.85)

As reported in the abstract

Further pooled results

Overall survival (OS) by body mass index (BMI) category

Pooled adjusted HR (95% CI)
Overweight0.81 (0.75–0.87)
Obesity0.78 (0.67–0.90)

OS in metastatic castration-resistant prostate cancer (mCRPC) subgroup

HR (95% CI)
OverweightAssociation more pronounced in mCRPC0.78 (0.71–0.85)
ObesityAssociation more pronounced in mCRPC0.73 (0.59–0.90)

OS per 1-unit increase in BMI

Improvement in OS per 1-unit BMI increase
4% (95% CI 1.0-8.0%)

Original publication

Association between overweight and obesity determined by body mass index and overall survival in patients with metastatic prostate cancer: a meta-analysis. Int J Obes (Lond). Published 15 August 2025. doi:10.1038/s41366-025-01883-6

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