In an unprecedented analysis published in the Chinese Medical Journal on April 1, 2026, a comprehensive examination of neurological diseases in China reveals a staggering escalation in prevalence and burden of these disorders from 1990 to 2021. Led by Professor Yamei Tang of Sun Yat-sen Memorial Hospital, this research draws on the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021, delivering an in-depth meta-analysis that paints a complex and evolving picture of neurological health challenges across the Chinese mainland. This study is pivotal, not only for its scale but also for broadening the understanding of the comparative burdens of varied neurological conditions within a rapidly changing demographic context.
Neurological diseases now affect approximately 3.4 billion individuals worldwide — an astounding 43.1% of the global population as of 2021. China, amid rapid demographic changes and shifting lifestyles, mirrors this alarming global trend with intensifying challenges posed by stroke, dementia, and Parkinson’s disease. Unlike earlier investigations that tended to isolate individual diseases, Professor Tang’s team adopted a holistic perspective, integrating data across 12 common neurological disorders, and stratifying their analyses based on age, sex, regional factors, and modifiable lifestyle risks.
Among the neurological disorders studied, tension-type headache emerges as the most prevalent affliction, affecting roughly 19,948 individuals per 100,000 population, followed closely by migraine and ischemic stroke. Notably, the diseases leading to mortality differ, with intracerebral hemorrhage (ICH), ischemic stroke, and dementia topping the list. Disability-adjusted life years (DALYs) — a crucial metric combining years lost due to premature death and years lived with disability — highlight ICH and ischemic stroke as the most disabling, accompanied by dementia’s substantial contribution to the neurological disease burden.
Tracking temporal trends from 1990 to 2021, the study uncovers sharp increases in disease prevalence, with exceptions such as idiopathic epilepsy. Parkinson’s disease incidence surged by an astounding 544.1%, while dementia and ischemic stroke followed with increases of 249.1% and 161.5%, respectively. When considering DALY rates, which reflect the overall burden on population health, dementia escalated by over 200%, far outpacing other disorders. Intriguingly, between 2019 and 2021, a period overlapping the COVID-19 pandemic, prevalence for several neurological conditions climbed sharply, prompting further scrutiny into potential viral and systemic influences on neurological health.
Age-specific analyses unveil distinct disease burdens characterizing different life stages. Early childhood under the age of 10 is dominated by idiopathic epilepsy and central nervous system tumors, whereas migraine prevalence peaks in young and middle-aged adults (ages 10–39). Middle-aged to elderly populations (40–74 years) encounter predominance of cerebrovascular events such as ICH and ischemic stroke. Beyond age 75, a paradigm shift occurs with ischemic stroke and dementia overtaking ICH. In the most advanced age group (over 90 years), dementia reigns as the largest neurological health concern, reflecting the complex neurodegenerative processes accruing with age.
Sex differences add another layer of nuance to the disease landscape. Women tend to exhibit higher prevalence rates of dementia and migraines, despite DALY rates showing parity between sexes. This suggests that although women might experience neurological conditions more frequently, the overall disability or mortality impact is comparable between men and women. Regional disparities also emerge; northern and northeastern China experience the highest DALY rates from ischemic stroke, whereas ICH dominates in southwestern and northwestern provinces, highlighting the influence of geographical, environmental, and possibly genetic factors in shaping neurological health outcomes.
In exploring modifiable risk factors, elevated systolic blood pressure stands out as the foremost contributor to neurological disease burden. Beyond this, behavioral risk factors display sex-specific patterns: women bear greater neurological risk from secondhand smoke exposure and physical inactivity, while men are disproportionately affected by alcohol consumption, smoking, and high-sodium diets. This intersection of lifestyle, gender, and neurological outcomes underscores the imperative for tailored public health strategies addressing both biological and social determinants of neurological disease.
Professor Tang emphasizes the profound epidemiological transition apparent in China’s neurological disease profile: a shift from predominantly fatal conditions like ICH toward chronic disabling illnesses such as dementia and Parkinson’s disease. This shift, largely driven by population aging, reshapes healthcare demands, placing an unprecedented strain on rehabilitation services and long-term care infrastructure—a challenge China and other aging societies must urgently confront.
The remarkable uptick in neurological disease prevalence during the 2019–2021 window raises pressing questions regarding the influence of the COVID-19 pandemic. Although definitive causal links require further investigation, accumulating evidence implicates SARS-CoV-2 infection in persistent neurological sequelae. Post-COVID cognitive deficits bear resemblance to early-stage Alzheimer’s disease, and headaches akin to migraine or tension-type pathologies have been frequently reported in post-viral syndromes. Disruptions in healthcare access during this period likely compounded disease management and outcomes.
This comprehensive study underscores the heterogeneity and evolving nature of neurological disease burden in China, as well as the intertwining effects of demographic shifts, lifestyle changes, and potentially pandemic-related factors. The heterogeneity in age, sex, and regional distributions mandates nuanced, regionally tailored, and disease-specific approaches to prevention, diagnosis, treatment, and long-term care. National strategies that integrate these dimensions will be essential to address the mounting challenges effectively.
Looking ahead, Professor Tang’s team calls for intensified longitudinal research efforts to elucidate the nuanced impacts of COVID-19 and other emerging risk factors on neurological health trajectories. Moreover, strengthening surveillance systems and enhancing healthcare delivery frameworks across different strata of the population will be vital. This study lays a foundational roadmap guiding policymakers, clinicians, and researchers toward mitigating the cerebral toll in one of the most populous and rapidly aging nations on Earth.
In conclusion, neurological disorders continue to exact a profound and rising burden on China, transitioning from conditions with high mortality to those inducing chronic disability. This shift portends a complex future, provoking urgent calls for comprehensive healthcare reforms, innovative caregiving models, and concerted public health interventions. By harnessing robust data and multidisciplinary collaboration, China’s neurological health landscape can be transformed, paving the way for improved outcomes and quality of life across its diverse population.
Subject of Research: People
Article Title: Prevalence and burden of neurological diseases in the Chinese mainland: An analysis from the Global Burden of Disease Study 2021
News Publication Date: 1-Apr-2026
Web References:
http://dx.doi.org/10.1097/CM9.0000000000004051
References:
Tang Y., et al. Prevalence and burden of neurological diseases in the Chinese mainland: An analysis from the Global Burden of Disease Study 2021. Chinese Medical Journal. 2026 Apr 1; DOI: 10.1097/CM9.0000000000004051.
Keywords:
Neurological diseases, China, Global Burden of Disease, stroke, dementia, Parkinson’s disease, prevalence, disability-adjusted life years, COVID-19 neurological impact, cerebral hemorrhage, epidemiology, neurodegeneration
