Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis

IntroductionLow serum parathyroid hormone (PTH) and secondary hyperparathyroidism (SHPT) are very common in patients undergoing hemodialysis. However, it remains unclear which of these has a lower mortality.ObjectiveIn this study, we compared outcomes between hemodialysis patients with low PTH and t...

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Main Authors: Wang Guo, Huixian Zhang, Yamei Zhang, Hongdong Huang, Wenhu Liu, Zongli Diao
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2022.869330/full
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author Wang Guo
Huixian Zhang
Yamei Zhang
Hongdong Huang
Wenhu Liu
Zongli Diao
author_facet Wang Guo
Huixian Zhang
Yamei Zhang
Hongdong Huang
Wenhu Liu
Zongli Diao
author_sort Wang Guo
collection DOAJ
description IntroductionLow serum parathyroid hormone (PTH) and secondary hyperparathyroidism (SHPT) are very common in patients undergoing hemodialysis. However, it remains unclear which of these has a lower mortality.ObjectiveIn this study, we compared outcomes between hemodialysis patients with low PTH and those with SHPT.MethodsThis was a multi-center, retrospective, matched cohort study. Median intact PTH (iPTH) was used as the cutoff for allocating participants to low PTH (iPTH<100 pg/mL) and SHPT groups (iPTH ≥600 pg/mL). Sex, diabetes, age, and dialysis vintage were matched between the groups. The primary outcome was all-cause death at 72 months.ResultsThe study cohort comprised 2282 patients (1166 in each study group). Prior to matching, the primary outcome occurred in 429/1166 patients (36.79%) in the low PTH group and in 284/1116 (25.45%) in the SHPT group. There were no significant differences in all-cause death between the groups according to multivariable Cox regression (P=0.423). The hazard ratio for low PTH versus SHPT was 1.08 (95% confidence interval, 0.90–1.30). Propensity matching created 619 pairs of patients. Baseline characteristics, including age, sex, diabetes, and dialysis vintage were comparable between the groups. The primary outcome occurred in 195/619 patients (31.50%) in the low PTH group and in 193/619 (31.18%) in the SHPT group. There were no significant differences in all-cause death between the groups according to multivariable Cox regression (P=0.43). The adjusted hazard ratio for low PTH versus SHPT was 1.10 (95% confidence interval, 0.87–1.39).ConclusionsHemodialysis patients with low PTH have similar all-cause death rates to the rates for those with SHPT.
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spelling doaj.art-9f288bdc41444675a5492734c8b9ad042022-12-22T03:23:27ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922022-05-011310.3389/fendo.2022.869330869330Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched AnalysisWang GuoHuixian ZhangYamei ZhangHongdong HuangWenhu LiuZongli DiaoIntroductionLow serum parathyroid hormone (PTH) and secondary hyperparathyroidism (SHPT) are very common in patients undergoing hemodialysis. However, it remains unclear which of these has a lower mortality.ObjectiveIn this study, we compared outcomes between hemodialysis patients with low PTH and those with SHPT.MethodsThis was a multi-center, retrospective, matched cohort study. Median intact PTH (iPTH) was used as the cutoff for allocating participants to low PTH (iPTH<100 pg/mL) and SHPT groups (iPTH ≥600 pg/mL). Sex, diabetes, age, and dialysis vintage were matched between the groups. The primary outcome was all-cause death at 72 months.ResultsThe study cohort comprised 2282 patients (1166 in each study group). Prior to matching, the primary outcome occurred in 429/1166 patients (36.79%) in the low PTH group and in 284/1116 (25.45%) in the SHPT group. There were no significant differences in all-cause death between the groups according to multivariable Cox regression (P=0.423). The hazard ratio for low PTH versus SHPT was 1.08 (95% confidence interval, 0.90–1.30). Propensity matching created 619 pairs of patients. Baseline characteristics, including age, sex, diabetes, and dialysis vintage were comparable between the groups. The primary outcome occurred in 195/619 patients (31.50%) in the low PTH group and in 193/619 (31.18%) in the SHPT group. There were no significant differences in all-cause death between the groups according to multivariable Cox regression (P=0.43). The adjusted hazard ratio for low PTH versus SHPT was 1.10 (95% confidence interval, 0.87–1.39).ConclusionsHemodialysis patients with low PTH have similar all-cause death rates to the rates for those with SHPT.https://www.frontiersin.org/articles/10.3389/fendo.2022.869330/fulllow parathyroid hormonesecondary hyperparathyroidismhemodialysisall-cause deathcardio-cerebrovascular death
spellingShingle Wang Guo
Huixian Zhang
Yamei Zhang
Hongdong Huang
Wenhu Liu
Zongli Diao
Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis
Frontiers in Endocrinology
low parathyroid hormone
secondary hyperparathyroidism
hemodialysis
all-cause death
cardio-cerebrovascular death
title Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis
title_full Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis
title_fullStr Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis
title_full_unstemmed Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis
title_short Low Parathyroid Hormone Versus Secondary Hyperparathyroidism and Survival in Patients Undergoing Hemodialysis: A Propensity-Matched Analysis
title_sort low parathyroid hormone versus secondary hyperparathyroidism and survival in patients undergoing hemodialysis a propensity matched analysis
topic low parathyroid hormone
secondary hyperparathyroidism
hemodialysis
all-cause death
cardio-cerebrovascular death
url https://www.frontiersin.org/articles/10.3389/fendo.2022.869330/full
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