Incidence of Guillain-Barré syndrome (GBS) in China: A national population-based study

The Lancet Regional Health - Western Pacific(2022)

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摘要
Background Guillain-Barre syndrome (GBS) is the most prevalent acute autoimmune polyneuropathy, however, the incidence of GBS across China remains undetermined. We conducted the first nationwide study to extrapolate the incidence and mortality rates of GBS across all age groups at a national scale. Methods This study analyzed patient metrics from the National Hospital Quality Monitoring System, a comprehensive administrative database of which incorporate all 1665 tertiary hospitals in mainland China. For all study patients the "Medical Record Homepage" encompasses 346 distinct variables such as demographic characteristics, diagnoses, procedures, expenses, etc., that are systematically recorded from these hospitals by standard protocol. All GBS diagnoses adhered to the National Institute of Neurologic and Communicative Disorders and Stroke (NINCDS) diagnostic criteria and were identified with ICD-10 code (G61.0). Findings From 2016 to 2019, 75,548 hospital admissions for 38,861 GBS patients were identified. The age- and sex-adjusted incidence per 100,000 person-years is 0.698 (95% confidence interval [CI], 0.691-0.705), 0.233(0.225-0.242) in children and 0.829(0.820-0.837) in adults. The male-to-female ratio is 1.49. Peak disease onset was detected in the 70-74 years age group with an incidence of 1.806/100, 000 (95% CI, 1.741-1.870). Recognizable GBS distribution patterns were recognized in the southeastern coastal areas, where the cases of GBS were concentrated in the summer and autumn seasons. Prevalent comorbidities include hypertension (28.8%) and stroke (14.3%). The median length of hospitalization was 13.0 (8.0-18.0) days with a median hospitalization cost of $2371.60 ($1281.80-5463.60). Covering 69.9% of study patients, the Basic Medical Insurance was the most common payment mechanism. From 2016-2019, 426 adults and 13 children died in this study pool, with a hospital mortality rate of 11.2 per 1,000 person-years. Interpretation For the first time, we obtained a national incidence for GBS at 0.233 in children and 0.829 in adults per 100,000 in China. A differential spatiotemporal incidence is presented most southeast coastal areas in the summer and autumn seasons. Copyright (C) 2021 The Authors. Published by Elsevier Ltd.
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