Big data-based parathyroid hormone (PTH) values emphasize need for age correction.
J Endocrinol Invest
; 46(12): 2525-2533, 2023 Dec.
Article
en En
| MEDLINE
| ID: mdl-37286864
ABSTRACT
PURPOSE:
We aimed to study the relationship between aging and increased parathyroid hormone (PTH) values.METHODS:
We performed a retrospective cross-sectional study with data from patients who underwent outpatient PTH measurements performed by a second-generation electrochemiluminescence immunoassay. We included patients over 18 years of age with simultaneous PTH, calcium, and creatinine measurements and 25-OHD measured within 30 days. Patients with glomerular filtration rate < 60 mL/min/1.73 m2, altered calcemia, 25-OHD level < 20 ng/mL, PTH values > 100 pg/mL or using lithium, furosemide or antiresorptive therapy were excluded. Statistical analyses were performed using the RefineR method.RESULTS:
Our sample comprised 263,242 patients for the group with 25-OHD ≥ 20 ng/mL, that included 160,660 with 25-OHD ≥ 30 ng/mL. The difference in PTH values among age groups divided by decades was statistically significant (p < 0.0001), regardless of 25-OHD values, ≥ 20 or ≥ 30 ng/mL. In the group with 25-OHD ≥ 20 ng/mL and more than 60 years, the PTH values were 22.1-84.0 pg/mL, a different upper reference limit from the reference value recommended by the kit manufacturer.CONCLUSION:
We observed a correlation between aging and PTH increase, when measured by a second-generation immunoassay, regardless of vitamin D levels, if greater than 20 ng/mL, in normocalcemic individuals without renal dysfunction.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Hormona Paratiroidea
/
Deficiencia de Vitamina D
Tipo de estudio:
Observational_studies
Límite:
Adolescent
/
Adult
/
Humans
Idioma:
En
Revista:
J Endocrinol Invest
Año:
2023
Tipo del documento:
Article
País de afiliación:
Brasil