Development and validation of a dementia risk score in the UK Biobank and Whitehall II cohorts.

Development and validation of a dementia risk score in the UK Biobank and Whitehall II cohorts.
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DOI:
10.1136/bmjment-2023-300719
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发表时间:
2023-07
期刊:
BMJ MENTAL HEALTH
影响因子:
--
通讯作者:
Suri, Sana
Suri, Sana
中科院分区:
其他
文献类型:
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作者:
Anaturk, Melis;Patel, Raihaan;Ebmeier, Klaus P.;Georgiopoulos, Georgios;Newby, Danielle;Topiwala, Anya;de Lange, Ann-Marie G.;Cole, James H.;Jansen, Michelle G.;Singh-Manoux, Archana;Kivimaki, Mika;Suri, Sana

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目前的痴呆症风险评分在一致识别不同年龄和地理位置的高危个体方面取得的成功有限。我们的目的是使用两个队列:英国生物银行和英国白厅 II 研究,为英国中年人群开发并验证一种新的痴呆症风险评分。我们将英国生物银行队列分为训练样本(n=176 611,80%)和测试样本(n=44 151,20%),并使用 Whitehall II 队列(n=2934)进行外部验证。我们使用 Cox LASSO 回归从 28 个候选预测因子中选择最强的痴呆事件预测因子,然后使用竞争风险回归开发风险评分。我们的风险评分被称为英国生物银行痴呆风险评分(UKBDRS),包括年龄、教育程度、父母痴呆史、物质匮乏、糖尿病史、中风、抑郁、高血压、高胆固醇、家庭居住和性别。该分数在英国生物银行测试样本(曲线下面积 (AUC) 0.8,95%CI 0.78 至 0.82)和 Whitehall 队列(AUC 0.77,95%CI 0.72 至 0.81)中具有很强的辨别准确性。 UKBDRS 的表现也显着优于最初在澳大利亚(澳大利亚国立大学阿尔茨海默病风险指数)、芬兰(心血管风险因素、老龄化和痴呆评分)和英国(痴呆风险评分)的队列中开发的其他三种广泛使用的痴呆风险评分。我们的风险评分是一种易于使用的工具,可用于识别英国有痴呆症风险的个人。需要进一步的研究来确定该分数在其他人群中的有效性。
Current dementia risk scores have had limited success in consistently identifying at-risk individuals across different ages and geographical locations. We aimed to develop and validate a novel dementia risk score for a midlife UK population, using two cohorts: the UK Biobank, and UK Whitehall II study. We divided the UK Biobank cohort into a training (n=176 611, 80%) and test sample (n=44 151, 20%) and used the Whitehall II cohort (n=2934) for external validation. We used the Cox LASSO regression to select the strongest predictors of incident dementia from 28 candidate predictors and then developed the risk score using competing risk regression. Our risk score, termed the UK Biobank Dementia Risk Score (UKBDRS), consisted of age, education, parental history of dementia, material deprivation, a history of diabetes, stroke, depression, hypertension, high cholesterol, household occupancy, and sex. The score had a strong discrimination accuracy in the UK Biobank test sample (area under the curve (AUC) 0.8, 95% CI 0.78 to 0.82) and in the Whitehall cohort (AUC 0.77, 95% CI 0.72 to 0.81). The UKBDRS also significantly outperformed three other widely used dementia risk scores originally developed in cohorts in Australia (the Australian National University Alzheimer’s Disease Risk Index), Finland (the Cardiovascular Risk Factors, Ageing, and Dementia score), and the UK (Dementia Risk Score). Our risk score represents an easy-to-use tool to identify individuals at risk for dementia in the UK. Further research is required to determine the validity of this score in other populations.
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