Zhang T, Ban B, Zhang M, Ji B, Sun H, Sun B. Association Between Hemoglobin and Growth Hormone Peak in Chinese Children and Adolescents with Short Stature: A Cross-Sectional Study.
Int J Gen Med 2021;
14:497-504. [PMID:
33623422 PMCID:
PMC7896770 DOI:
10.2147/ijgm.s292920]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/25/2021] [Indexed: 11/23/2022] Open
Abstract
Objective
This research aimed to investigate the relationship between hemoglobin (Hb) and growth hormone (GH) peak in children and adolescents with short stature.
Design
This cross-sectional study included a total of 787 children and adolescents with short stature. Anthropometric and biochemical indicators were measured at baseline. All patients underwent GH provocation tests with L-dopa and insulin to assess GH peak levels.
Results
The univariate analysis results showed that Hb was positively associated with GH peak (β 0.07, P=0.001). Furthermore, a non-linear relationship was detected between Hb and GH peaks through smooth curve fitting, and the inflection point was 123 g/L after multivariate piecewise linear regression analysis. GH peak increased with Hb elevation when the Hb level was greater than 123 g/L (β 0.08, 95% CI 0.01, 0.14; P=0.0207).
Conclusion
In children and adolescents with short stature, we found GH peak was positively associated with the Hb level when the Hb level reached the inflection point.
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