Reference ranges for NT-proBNP (N-Terminal Pro-B-Type Natriuretic Peptide) and risk factors for higher NT-proBNP concentrations in a large general population cohort

Paul Welsh*, Ross T Campbell, Leanne Mooney, Dorien M. Kimenai, Caroline Hayward, Archie Campbell, David Porteous, Nicholas L Mills, Ninian Lang, Mark C. Petrie, James L Januzzi, John J. V. McMurray, Naveed A. Sattar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Background
Demographic differences in expected NT-proBNP concentration are not well established. We aimed to establish reference ranges for NT-proBNP, and explore the determinants of moderately elevated NT-proBNP under the universal definition of heart failure criteria.
Methods

This is a cross-sectional study. NT-proBNP was measured in serum from 18,356 individuals without previous cardiovascular disease in the Generation Scotland Scottish Family Health Study. Age and sex-stratified medians and 97.5th centiles were generated. Sex stratified risk factors for moderately elevated NT-proBNP (≥125pg/ml) were investigated.
Results

In males, median [97.5th centile] NT-proBNP concentration at age <30 years was 21 [104] pg/ml, rising to 38 [195] pg/ml at 50-59 years, and 281 [6792] pg/ml at ≥80 years. In females, median NT-proBNP at age <30 years was 51 [196] pg/ml, 66 [299] pg/ml at 50-59 years, and 240 [2704] pg/ml at ≥80 years. At age <30 years, 9.8% of females and 1.4% of males had elevated NT-proBNP, rising to 76.5% and 81.0%, respectively, at age ≥80 years. After adjusting for risk factors, an NT-proBNP ≥125pg/mL was more common in females than males (OR 9.48; 95%CI 5.60-16.1). Older age and smoking were more strongly associated with elevated NT-proBNP in males than in females (p for sex interaction <0.001, 0.07, respectively). Diabetes was inversely associated with odds of elevated NT-proBNP in females only (p for sex interaction 0.007).
Conclusions

An NT-proBNP ≥125pg/mL is common in females without classical cardiovascular risk factors as well as older people. If NT-proBNP becomes widely used for screening in the general population, interpretation of NT-proBNP levels will require that age and sex-specific thresholds are used to identify patients with potential pathophysiology.
Original languageEnglish
Article numbere009427
Number of pages11
JournalCirculation: Heart failure
Volume15
Early online date13 Sept 2022
DOIs
Publication statusE-pub ahead of print - 13 Sept 2022

Keywords / Materials (for Non-textual outputs)

  • NT-proBNP
  • risk factors
  • heart failure
  • sex
  • age

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