Table 3 Treshold efect analysis of the CRP and mortality.

From: Association of C-reactive protein with mortality in Covid-19 patients: a secondary analysis of a cohort study

Models

Per-10 unit increase

 

HR (95% CI)

P value

Model I

 One line effect

1.23 (1.14, 1.33)

 < 0.0001

Model II

 Turning point (K)

1.56

 

 CPR < K

1.57 (1.30, 1.91)

 < 0.0001

 CPR ≥ K

1.11 (0.99, 1.24)

0.0819

 P value for LRT test*

 

0.007

  1. Data were presented as HR (95% CI) P value; Model I, linear analysis; Model II, non-linear analysis. Adjusted for age, D-Dimer, temperature, oxygen saturation, mean arterial pressure, platelets, INR, BUN, creatinine, sodium, glucose, AST, WBC, ALT, lymphocytes, interleukin-6, ferritin, procalcitonin, troponin, ethnicity, myocardial infarction, peripheral vascular disease, congestive heart failure, cerebrovascular disease, dementia, chronic obstructive pulmonary disease, diabetes mellitus simple, renal disease, stroke. CI confdence interval, HR hazard ratio, LRT logarithm likelihood ratio test. *P < 0.05 indicates that model II is signifcantly diferent from Model I.
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