CRP and diabetes mellitus: In the multivariable analysis (Table 4), when modeling key outcomes as dependent variables and using socioeconomic deprivation (P + status) as the main independent predictor, we found that precarious patients were significantly more likely to be smokers (OR = 2.81; 95% CI: 1.55–5.12; p = .001), exhibited higher normalized protein catabolic rates (nPCR) (OR = 1.75; 95% CI: 1.12–2.95; p = .018), and had elevated CRP levels (OR = 1.04; 95% CI: 1.02–1.07; p = .003) after adjustment for age, sex, diabetes status, dialysis duration, and center effect.