CRP and rheumatoid arthritis: When PLR was less than 254, it exhibited a significantly positive correlation with DAS28-ESR and DAS28-CRP (<i>P</i> < 0.001 for both).<h4>Conclusion</h4>This study revealed a threshold effect: in patients with early RA (ERA), PLR is positively associated with DAS28-ESR and DAS28-CRP only when PLR is below 254.