Cognitive impairment risk in 1,303 Shanghai adults aged 65+ in a cross-sectional study
In this cross-sectional survey of 1,303 community-dwelling Shanghai residents aged 65 and older, the detection rate of cognitive impairment risk was 22.18% and rose with age; housework, reading and internet use were inversely associated with that risk. [1]
Automatic summary · not editorially reviewed
The key findings
The cross-sectional study enrolled 1,303 Shanghai residents aged 65 or older via cluster sampling and assessed cognitive impairment risk with the Thoven Cognitive Function Assessment Tool. [1]
The overall detection rate of cognitive impairment risk was 22.18% (289/1,303) and rose from 17.29% in those aged 70 or younger to 41.79% in those aged 81 or older. [1]
Housework, reading and internet use were independently inversely associated with cognitive impairment risk, with housework strongest; sex- and age-stratified patterns differed. [1]
The source at a glance
- Study type / format
- Community-based cross-sectional study (abstract).
- Population / context
- Community-dwelling adults aged 65 years or older in Shanghai, China (n = 1,303).
- Summary based on
- Study abstract
- Publication status
- Preprint · peer-review status not confirmed
- Original publication
- September 11, 2026
Shanghai residents 65+ sampled by cluster
This community-based cross-sectional study enrolled 1,303 residents aged 65 years or older in Shanghai, China, using cluster sampling. Standardized questionnaires collected sociodemographic data, lifestyle behaviors, cognitive and physical activities, housework, sleep duration, psychological status, medical history and physical function. Cognitive impairment risk was assessed with the Thoven Cognitive Function Assessment Tool. Analyses used univariable tests and multivariable logistic regression, with separate analyses by sex and age subgroup. Because the study is cross-sectional, it records associations at one point in time and cannot show what caused what.
Supporting source [1]
22.18% detection rate, rising with age
The overall detection rate of cognitive impairment risk was 22.18% (95% confidence interval 19.92%–24.43%; 289 of 1,303 participants). The rate rose markedly with age, from 17.29% in adults aged 70 years or younger to 41.79% in those aged 81 years or older. The abstract describes this as a detection rate of risk on a screening tool, not a clinical diagnosis.
Supporting source [1]
Housework, reading, internet use inversely associated
In multivariable regression, three factors were independently associated with cognitive impairment risk: housework (adjusted odds ratio 0.309; 95% CI 0.171–0.560), reading (0.465; 0.235–0.862) and internet use (0.559; 0.338–0.906), with housework showing the strongest inverse association. Sex-stratified results differed: in men only housework was independently associated (0.202), while in women reading (0.266), internet use (0.361), feeling bored (3.795) and strolling (0.496) were associated. Age-stratified patterns also varied. These are associations, not evidence that these activities reduce risk.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. The design is cross-sectional, so associations cannot establish causation or direction. The abstract reports no follow-up, and the detection rate reflects a screening tool for risk, not a clinical diagnosis.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Wang Z, Li D, Chen Z, Xiao X, Li H, Qin Y, Yao L, Huang C, He Q, Wu C. · europepmc.org · September 11, 2026