Table 3.

Results of 2-piecewise linear regression model.

Inflection point of PLR (%)	Effect size (OR)	95% CI	P value
<5.08	3.14	0.81 to 12.21	0.572
≥5.08	0.81	0.69 to 0.95	0.022

Exposure: PLR Outcome: ITP treatment response status (response=0, no response=1). Adjust strategy: adjusted for age, sex, weight, height, smoking status, alcohol consumption, HP infection, diabetes history, hyperuricemia, cardiovascular diseases, bleeding in skin, bleeding in mucosa, bleeding in organ, treatment protocol (high-dose dexamethasone, oral prednisone). PLR – platelet to lymphocyte ratio; OR – odds ratio; CI – confidence interval; ITP – immune thrombocytopenia; HP – Helicobacter pylori.