Toggle Main Menu Toggle Search

Open Access padlockePrints

Exploring the relationship between early cognitive ability and age-60 sleep quality: The Newcastle Thousand Families Study birth cohort

Lookup NU author(s): Dr Emma SlackORCiD, Natalja Wells-Dean, Dr Helen St Clair-Thompson, Professor Mark PearceORCiD

Downloads


Licence

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Abstract

© 2024 The AuthorsObjectives: Poor sleep quality has been linked to adverse health outcomes. It is important to understand factors contributing to sleep quality. Previous research has suggested increased cognition and education duration have a protective effect on sleep quality in old age. This study aimed to assess the hypothesis that age-11 intelligence quotient and highest achieved education level are associated with subjective sleep quality at age 60. Methods: Participants are members of the Newcastle Thousand Families Study birth cohort, all born in 1947. Data included a calculated intelligence quotient score based on participant's 11-plus exam results, highest achieved education level, social class at ages 25 and 50 and global Pittsburgh Sleep Quality Index (PSQI) at age 60. Multivariable regression analysis was used to investigate effect sizes of variables on global PSQI, which formed the basis of a path analysis model. Results: After excluding participants with incomplete data, and those who had been diagnosed with sleep apnea, 251 participants were included in the path analysis model. Education level was associated with global PSQI (R = − 0.653; 95% CI − 1.161, − 0.145; P = .012) but age-11 intelligence quotient was not. While a similar association was seen for women in the stratified analysis, no such associations were seen for men. Conclusions: The results of this study show an inverse relationship between education level, but not childhood intelligence quotient, and sleep quality in later life, in women only. Future research is needed to examine the mechanism underlying this relationship.


Publication metadata

Author(s): Grebby J, Slack EL, Wells-Dean N, St Clair-Thompson H, Pearce MS

Publication type: Article

Publication status: Published

Journal: Sleep Health

Year: 2024

Pages: epub ahead of print

Online publication date: 06/08/2024

Acceptance date: 02/07/2024

Date deposited: 19/08/2024

ISSN (print): 2352-7218

ISSN (electronic): 2352-7226

Publisher: Elsevier Inc.

URL: https://doi.org/10.1016/j.sleh.2024.07.002

DOI: 10.1016/j.sleh.2024.07.002

Data Access Statement: The data underlying this article cannot be shared publicly due to the need to protect the privacy of the individuals who participated in the study.


Altmetrics

Altmetrics provided by Altmetric


Share