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Method of BMI ascertainment: measurement by trained interviewers
"At the baseline examination, anthropometric measurements including height, weight, WC, and hip circumference were taken by trained interviewers and recorded for each participant. Only weight was measured at each of the follow-up examinations. BMI (weight[kg] over height squared [m2] was considered the primary index of body weight, since it is scaled according to height and was categorized as obese (BMI>=25), overweight (BMI=23.0-24.9), normal (BMI=18.5=22.9), and underweight (BMI <18.5) according to cutoffs proposed by the International Obesity Taskforce for Asian populations."
"Fixed slope parameters for each participant were calculated using random effect modeling and served as a measure of rate of change in BMI across the study period (mean=-0.07, SD=0.11)."
The investigators conducted the analyses adjusting for different sets of covariates. This row corresponds to the analysis performed adjusting for age, gender and education only.
All participants were at least 65 years of age at study entry.
Screening and Diagnosis Detail
Cognitive Abilities Screening Instrument (Teng 1994)
Clinical Dementia Rating (Berg 1988)
Consortium to Establish a Registry for Alzheimer’s Disease (Morris 1989)
Diagnostic and Statistical Manual IV
National Institute of Neurological and Communicative Diseases and Stroke/Alzheimer's Disease and Related Disorders Association Criteria (McKhann 1984)
Covariates & Analysis Detail
Cox proportional hazards regression