Extended Data Table 4 Summary of the selected articles (continued)

From: A meta-analysis of loneliness and risk of dementia using longitudinal data from >600,000 individuals

  1. Study abbreviations: CLHLS = Chinese Longitudinal Healthy Longevity Survey; InveCe.Ab = Cerebral Aging in Abbiategrasso study; CC75C = Cambridge City over-75s Cohort study; SLAS = Singapore Longitudinal Ageing Study. N = number of participants/incident cases; M = Mean; SD = Standard Deviation; M / F = male/female individuals. Outcomes: Dem = dementia (all-cause); AD = Alzheimer’s disease; VaD = vascular dementia; CIND = cognitive impairment, no dementia; nCI = non-specific cognitive impairment; MCI = Mild Cognitive Impairment. Cognitive Status Classification: Clinical diagnosis generally refers to a consensus process based on cognitive/neuropsychological evaluation and review of medical records; the diagnosis was based on the Diagnostic and Statistical Manual of Mental Disorders (IV or III-R) or followed the guidelines of the working group of the National Institute of Neurological and Communicative Disorders and Stroke and Alzheimer’s Disease and Related Disorders Association or the Petersen’s criteria for MCI. For further details on each study see Data Extraction File: https://osf.io/tfphs/. Publications highlighted in grey were selected for supplementary analysis.
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