TP53 and sarcopenia: Finally, comparing the common TP53 Arg-Del haplotype (reference) with the other expected haplotypes showed that the carriers of Arg-Ins (ORadj: 0.484, 95% CI = 0.231 – 1.011, P = 0.043) and Pro-Ins (ORadj: 0.473, 95% CI = 0.210 – 1.068, P = 0.022) haplotypes decreased the risk of developing sarcopenia.