Sexual Medicine

Age at first sexual intercourse and frailty: Mendelian randomization and population-based evidence from NHANES and UK Biobank

Figure 1. Mendelian randomization estimates for the causal associations between AFS and frailty.
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Figure 1. Mendelian randomization estimates for the causal associations between AFS and frailty.Mendelian randomization estimates for the causal associations between AFS and frailty.Wang et al.
Mendelian randomisation in 109,449 peoplePopulations

Declared no competing interests

The paper

Shandong University of Traditional Chinese Medicine; Shandong Women’s University

Sexual Medicine, 2 Sep 2026

doi.org/10.1093/sexmed/qfag075PubMed 42689252