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Table 4 Sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and odds ratio at different cut-off levels of pro-ANP

From: Pro-atrial natriuretic peptide is a prognostic marker in sepsis, similar to the APACHE II score: an observational study

Pro-ANP cut-off (pmol/l) Sensitivity (95% CI) Specificity (95% CI) LR+ LR- Odds ratio (95% CI)
350 93% (68–99%) 77% (62–88%) 4.1 0.09 47.6 (5.5–408)
530 86% (59–98%) 88% (75–96%) 7.6 0.15 50.7 (8.7–293)
700 73% (44–92%) 93% (81–98%) 10.7 0.29 37.5 (7.3–193)
  1. ANP, atrial natriuretic peptide; CI, confidence interval; LR-, negative likelihood ratio; LR+, positive likelihood ratio;