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Table 2 Multivariate Cox regression models exploring the association between serum hs-CRP >61 mg/L and the diagnosis of pneumonia in the study population (n = 455)

From: The association of serum procalcitonin and high-sensitivity C-reactive protein with pneumonia in elderly multimorbid patients with respiratory symptoms: retrospective cohort study

Parameter O.R. 95 % C.I. p
Model 1 (age- and sex-adjusted)
 hs-CRP> 61 mg/L 3.88 2.58–5.81 <0.001
 Age 0.98 0.97–1.01 0.17
 Sex (F vs M) 0.59 0.39–0.89 0.01
Model 2 (fully-adjusted)
 hs-CRP> 61 mg/L 3.59 2.35–5.48 <0.001
 Age 0.98 0.96–1.01 0.09
 Sex (F vs M) 0.52 0.34–0.,80 0.003
 Setting of living (nursing home vs community) 1.99 1.18–3.36 0.009
 Dementia 2.45 1.48–4.08 <0.001
  1. Model 1 is age- and sex-adjusted. Model 2 is adjusted also for covariates that proved significantly different between patients with and without pneumonia at univariate analysis (i.e. dementia and provenience from a nursing home). The cut-off value of hs-CRP was set at 61 mg/L according to the Youden index applied to the ROC method
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