Construction of an early differentiation diagnosis model for patients with severe fever with thrombocytopenia syndrome and hemorrhagic fever with renal syndrome

Author:

Wang Wenjie1ORCID,Wang Zijian1,Chen Zumin1,Liang Manman1,Zhang Aiping1,Sheng Haoyu1,Ni Mingyue1,Yang Jianghua1ORCID

Affiliation:

1. Department of Infectious Diseases The First Affiliated Hospital of Wannan Medical College Wuhu Anhui China

Abstract

AbstractSevere fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease with a high mortality rate. Differentiating between SFTS and hemorrhagic fever with renal syndrome (HFRS) is difficult and inefficient. Retrospective analysis of the medical records of individuals with SFTS and HFRS was performed. Clinical and laboratory data were compared, and a diagnostic model was developed based on multivariate logistic regression analyzes. Receiver operating characteristic curve analysis was used to evaluate the diagnostic model. Among the 189 patients, 113 with SFTS and 76 with HFRS were enrolled. Univariate analysis revealed that more than 20 variables were significantly associated with SFTS. Multivariate logistic regression analysis revealed that gender, especially female gender (odds ratio [OR]: 4.299; 95% confidence interval [CI]: 1.163–15.887; p = 0.029), age ≥65 years (OR: 16.386; 95% CI: 3.043–88.245; p = 0.001), neurological symptoms (OR: 12.312; 95% CI: 1.638–92.530; p = 0.015), leukopenia (<4.0 × 109/L) (OR: 17.355; 95% CI: 3.920–76.839; p < 0.001), and normal Cr (OR: 97.678; 95% CI: 15.483–616.226; p < 0.001) were significantly associated with SFTS but not with HFRS. The area under the curve of the differential diagnostic model was 0.960 (95% CI: 0.936–0.984), which was significantly better than that of each single factor. In addition, the model exhibited very excellent sensitivity and specificity (92.9% and 85.5%, respectively). In cases where HFRS and SFTS are endemic, a diagnostic model based on five parameters, such as gender, age ≥65 years, neurological symptoms, leukopenia and normal Cr, will facilitate the differential diagnosis of SFTS and HFRS in medical institutions, especially in primary care settings.

Funder

National Natural Science Foundation of China

Publisher

Wiley

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