Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies
Objectives This meta-analysis aims to assess the association between adult nap duration and risk of all-cause mortality and cardiovascular diseases (CVD). Methods PubMed, Cochrane Library, Embase and Web of Science databases were searched to identify eligible studies. The quality of observational st...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/114570/ http://psasir.upm.edu.my/id/eprint/114570/1/114570.pdf |
| _version_ | 1848866533011357696 |
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| author | Wang, Meng Xiang, Xin Zhao, Zhengyan Liu, Yu Cao, Yang Guo, Weiwei Hou, Linlin Jiang, Qiuhuan |
| author_facet | Wang, Meng Xiang, Xin Zhao, Zhengyan Liu, Yu Cao, Yang Guo, Weiwei Hou, Linlin Jiang, Qiuhuan |
| author_sort | Wang, Meng |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Objectives This meta-analysis aims to assess the association between adult nap duration and risk of all-cause mortality and cardiovascular diseases (CVD). Methods PubMed, Cochrane Library, Embase and Web of Science databases were searched to identify eligible studies. The quality of observational studies was assessed using the Newcastle-Ottawa Scale. We performed all statistical analyses using Stata software version 14.0. For the meta-analysis, we calculated hazard ratio (HR) and their corresponding 95% confidence intervals (CIs). To assess publication bias, we used a funnel plot and Egger’s test. Results A total of 21 studies involving 371,306 participants revealed varying methodological quality, from moderate to high. Those who indulged in daytime naps faced a significantly higher mortality risk than non-nappers (HR: 1.28; 95% CI: 1.18–1.38; I2 = 38.8%; P<0.001). Napping for less than 1 hour showed no significant association with mortality (HR: 1.00; 95% CI: 0.90–1.11; I2 = 62.6%; P = 0.971). However, napping for 1 hour or more correlated with a 1.22-fold increased risk of mortality (HR: 1.22; 95% CI: 1.12–1.33; I2 = 40.0%; P<0.001). The risk of CVD associated with napping was 1.18 times higher than that of non-nappers (HR: 1.18; 95% CI: 1.02–1.38; I2 = 87.9%; P = 0.031). Napping for less than 1 hour did not significantly impact CVD risk (HR: 1.03; 95% CI: 0.87–1.12; I2 = 86.4%; P = 0.721). However, napping for 1 hour or more was linked to a 1.37-fold increased risk of CVD (HR: 1.37; 95% CI: 1.09–1.71; I2 = 68.3%; P = 0.007). Conclusions Our meta-analysis indicates that taking a nap increases the risk of overall mortality and CVD mortality. It highlights that the long duration time of the nap can serve as a risk factor for evaluating both overall mortality and cardiovascular mortality. |
| first_indexed | 2025-11-15T14:22:06Z |
| format | Article |
| id | upm-114570 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:22:06Z |
| publishDate | 2024 |
| publisher | Public Library of Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1145702025-01-20T01:07:40Z http://psasir.upm.edu.my/id/eprint/114570/ Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies Wang, Meng Xiang, Xin Zhao, Zhengyan Liu, Yu Cao, Yang Guo, Weiwei Hou, Linlin Jiang, Qiuhuan Objectives This meta-analysis aims to assess the association between adult nap duration and risk of all-cause mortality and cardiovascular diseases (CVD). Methods PubMed, Cochrane Library, Embase and Web of Science databases were searched to identify eligible studies. The quality of observational studies was assessed using the Newcastle-Ottawa Scale. We performed all statistical analyses using Stata software version 14.0. For the meta-analysis, we calculated hazard ratio (HR) and their corresponding 95% confidence intervals (CIs). To assess publication bias, we used a funnel plot and Egger’s test. Results A total of 21 studies involving 371,306 participants revealed varying methodological quality, from moderate to high. Those who indulged in daytime naps faced a significantly higher mortality risk than non-nappers (HR: 1.28; 95% CI: 1.18–1.38; I2 = 38.8%; P<0.001). Napping for less than 1 hour showed no significant association with mortality (HR: 1.00; 95% CI: 0.90–1.11; I2 = 62.6%; P = 0.971). However, napping for 1 hour or more correlated with a 1.22-fold increased risk of mortality (HR: 1.22; 95% CI: 1.12–1.33; I2 = 40.0%; P<0.001). The risk of CVD associated with napping was 1.18 times higher than that of non-nappers (HR: 1.18; 95% CI: 1.02–1.38; I2 = 87.9%; P = 0.031). Napping for less than 1 hour did not significantly impact CVD risk (HR: 1.03; 95% CI: 0.87–1.12; I2 = 86.4%; P = 0.721). However, napping for 1 hour or more was linked to a 1.37-fold increased risk of CVD (HR: 1.37; 95% CI: 1.09–1.71; I2 = 68.3%; P = 0.007). Conclusions Our meta-analysis indicates that taking a nap increases the risk of overall mortality and CVD mortality. It highlights that the long duration time of the nap can serve as a risk factor for evaluating both overall mortality and cardiovascular mortality. Public Library of Science 2024-10-16 Article PeerReviewed text en cc_by_4 http://psasir.upm.edu.my/id/eprint/114570/1/114570.pdf Wang, Meng and Xiang, Xin and Zhao, Zhengyan and Liu, Yu and Cao, Yang and Guo, Weiwei and Hou, Linlin and Jiang, Qiuhuan (2024) Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies. PLoS ONE, 19. art. no. e0311266. ISSN 1932-6203; eISSN: 1932-6203 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0311266 10.1371/journal.pone.0311266 |
| spellingShingle | Wang, Meng Xiang, Xin Zhao, Zhengyan Liu, Yu Cao, Yang Guo, Weiwei Hou, Linlin Jiang, Qiuhuan Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| title | Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| title_full | Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| title_fullStr | Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| title_full_unstemmed | Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| title_short | Association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| title_sort | association between self-reported napping and risk of cardiovascular disease and all-cause mortality: a meta-analysis of cohort studies |
| url | http://psasir.upm.edu.my/id/eprint/114570/ http://psasir.upm.edu.my/id/eprint/114570/ http://psasir.upm.edu.my/id/eprint/114570/ http://psasir.upm.edu.my/id/eprint/114570/1/114570.pdf |