ArticleEndocrine connections2023
Association between radioactive iodine uptake and neutropenia in untreated Graves' disease.
Article in Endocrine connections, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors at 1 institution in 1 country.
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Abstract
Objective: Neutropenia is a complication of Graves' disease (GD), but there is currently no means by which to predict its occurrence. This study aimed to investigate the risk factors for the development of neutropenia in untreated GD. Methods: This was a retrospective cohort study. Between January 1, 2010, and July 31, 2020, 1000 patients with new-onset or relapsing GD without treatment were enrolled in the study and divided into two groups: neutropenia group (neutrophil count < 2 × 109/L) and non-neutropenia group (neutrophil count ≥ 2 × 109/L). Clinical characteristics of subjects were compared between the two groups, and logistic regression analysis was applied to determine risk factors for neutropenia. To further explore the correlation of radioactive iodine uptake (RAIU) with neutropenia, subjects were first classified according to quartile of 3 h RAIU and 24 h RAIU prior to logistic regression analysis. Results: Of all patients recruited, 293 (29.6%) were diagnosed with neutropenia. Compared with non-neutropenic patients, those with neutropenia had a higher level of free thyroxine (FT4) (56.64 ± 31.80 vs 47.64 ± 39.64, P = 0.001), 3 h RAIU (55.64 ± 17.04 vs 49.80 ± 17.21, P < 0.001) and 24 h RAIU (67.38 ± 12.54 vs 64.38 ± 13.58, P < 0.001). Univariate logistic regression analysis revealed that FT4, 3 h RAIU, 24 h RAIU, creatinine, and low-density lipoprotein were risk factors for development of neutropenia in GD. After adjusting for confounding factors of age, BMI, and sex, we determined that 3 h RAIU and 24 h RAIU (Model 1: OR = 1.021, 95% CI: 1.008-1.033, P = 0.001; Model 2: OR = 1.023, 95% CI: 1.007-1.039, P = 0.004), but not FT4, were associated with the development of neutropenia. Conclusions: RAIU is associated with neutropenia in patients with untreated GD.
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