Yanbo Li1, Suhang Shang1, Yulang Fei2, Chen Chen1, Yu Jiang1, Liangjun Dang1, Jie Liu1, Louyan Ma3, Meng Wei1, Qiumin Qu4. 1. Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. 2. The Second Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, China. 3. Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; The Second Department of Geriatrics, Xi'an Ninth Hospital, Xi'an, China. 4. Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. Electronic address: quqiumin@medmail.com.cn.
Abstract
AIMS: Type 2 diabetes and obesity, which are frequently comorbid, have been associated with cognitive impairment. We aim to examine the potential modulating effect between obesity and diabetes on cognitive impairment. METHODS: We recruited 865 adults (aged ≥55years) lived in a village of Xi'an in China from October 2014 to March 2015. All participants underwent biomedical and neuropsychological assessment. Relations of diabetes and abdominal obesity to cognitive impairment were examined in multiple regression models. RESULTS: A total of 155 participants (17.9%) presented with the diagnosis of cognitive impairment. Diabetes or obesity alone wasn't significantly associated with cognitive impairment. Interaction analysis showed a significant interaction between abdominal obesity and diabetes on cognitive impairment. Stratified multivariate analysis revealed that the association between diabetes and cognitive impairment was positive in participants with abdominal obesity (OR 2.436, 95% CI 1.345-4.411, p=0.003, in diabetics with high WC, and OR 2.348, 95% CI 1.373-4.014, p=0.002, in diabetics with high WHR), but negative in those without abdominal obesity. CONCLUSIONS: Type 2 diabetes interacts with abdominal obesity to be associated with an increased risk of cognitive impairment by more than two times.
AIMS: Type 2 diabetes and obesity, which are frequently comorbid, have been associated with cognitive impairment. We aim to examine the potential modulating effect between obesity and diabetes on cognitive impairment. METHODS: We recruited 865 adults (aged ≥55years) lived in a village of Xi'an in China from October 2014 to March 2015. All participants underwent biomedical and neuropsychological assessment. Relations of diabetes and abdominal obesity to cognitive impairment were examined in multiple regression models. RESULTS: A total of 155 participants (17.9%) presented with the diagnosis of cognitive impairment. Diabetes or obesity alone wasn't significantly associated with cognitive impairment. Interaction analysis showed a significant interaction between abdominal obesity and diabetes on cognitive impairment. Stratified multivariate analysis revealed that the association between diabetes and cognitive impairment was positive in participants with abdominal obesity (OR 2.436, 95% CI 1.345-4.411, p=0.003, in diabetics with high WC, and OR 2.348, 95% CI 1.373-4.014, p=0.002, in diabetics with high WHR), but negative in those without abdominal obesity. CONCLUSIONS: Type 2 diabetes interacts with abdominal obesity to be associated with an increased risk of cognitive impairment by more than two times.