Association between Combined Lifestyle Factors and Non-Restorative Sleep in Japan: A Cross-Sectional Study Based on a Japanese Health Database

Wakasugi, Minako; Kazama, Junichiro James; Narita, Ichiei; Iseki, Kunitoshi; Moriyama, Toshiki; Yamagata, Kunihiro; Fujimoto, Shouichi; Tsuruya, Kazuhiko; Asahi, Koichi; Konta, Tsuneo; Kimura, Kenjiro; Kondo, Masahide; Kurahashi, Issei; Ohashi, Yasuo; Watanabe, Tsuyoshi

doi:10.1371/journal.pone.0108718

Cited by 52 publications

(78 citation statements)

References 57 publications

(67 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Frequency of subjective NRS was 33.3% in our study population, while it was reported to vary according to the study population and the methods used for the NRS assessment [9–11, 20–22]. Another general-population based study in Japan [11] in which the mean age was slightly older than in our study population reported that the frequency of NRS was 19.2% in men and 26.3% in women using the same single “yes-no” question that we used.…”

Section: Discussionmentioning

confidence: 99%

Combined association of clinical and lifestyle factors with non-restorative sleep: The Nagahama Study

et al. 2017

View full text Add to dashboard Cite

BackgroundNon-restorative sleep (NRS) was suggested to be associated with cardiovascular outcomes. However, causative factors for NRS have not been fully elucidated. This study aimed to clarify factors and their relationships with NRS to better understand the clinical and epidemiological implications of NRS and to develop a score that can objectively evaluate NRS status.MethodsStudy subjects consisted of 9,788 community residents (age 53.6 ± 13.4 y). Subjective NRS as well as possible clinical and lifestyle factors for NRS were investigated by questionnaires. Other clinical parameters were obtained from personal records of information obtained at the baseline examination.ResultsA total of 3,261 participants complained of NRS. Factors independently associated with subjective NRS were younger age (odds ratio = 1.43), use of a hypnotic drug (2.04), irregular sleep schedule (2.02), short sleep duration (<5 h, 11.7; 5–6 h, 4.81; 6–7 h, 2.40), frequent sleepiness (2.33), routine stress (4.63), no habitual exercise (1.61), nocturia symptoms (1.43), symptoms of gastroesophageal reflux disease (1.44), and depression (1.46) (all P <0.001). The NRS score comprised of these 10 factors was linearly associated with the frequency of subjective NRS (Ptrend <0.001). Frequency of individuals with a high NRS score was greater in women (52.3%) than in men (42.1%, P<0.001), while no clear association was observed with common risk factors for cardiovascular diseases.ConclusionsNRS was a phenomenon representing various clinical and lifestyle features. Careful attention should be paid to individuals with a high NRS score who might be at risk for mental fatigue and have unfavorable lifestyle factors.

show abstract

Section: Discussionmentioning

confidence: 99%

Combined association of clinical and lifestyle factors with non-restorative sleep: The Nagahama Study

et al. 2017

View full text Add to dashboard Cite

show abstract

“…SHCG has been described previously [4][5][6] . In this system, participants answer a self-administered questionnaire that covers medical history and current lifestyles (smoking status, alcohol intake, exercise habits, eating habits, and sleep condition).…”

Section: Study Population and Designmentioning

confidence: 99%

“…With regard to lipid control, TLs for HDL cholesterol (HDL-C), and triglyceride (TG) have been set to ≥ 40 mg/dL and 150 mg/dL, respectively, for the three diseases, and TL for LDL cholesterol (LDL-C) has been set to 100 mg/dL for pCHD and 120 mg/dL for diabetes mellitus and pCVD 2) . In addition to these recommendations for TLs agreed upon by Japanese medical societies, the Japanese government initiated the nationwide annual "Specific Health Check and Guidance in Japan (SHCG)" in 2008 [4][5][6] . This project aimed to identify those who are under or at a high-risk state for metabolic syndrome and subsequently to instruct them regarding how to improve their lifestyle, thereby reducing the prevalence of metabolic syndrome and atherosclerotic cardiovascular diseases 7,8) in the future.…”

Section: Study Population and Designmentioning

confidence: 99%

Control Status of Atherosclerotic Cardiovascular Risk Factors Among Japanese High-Risk Subjects:Analyses of a Japanese Health Check Database from 2008 to 2011

Hasegawa

Tsukamoto

Kunimi

et al. 2016

JAT

Self Cite

View full text Add to dashboard Cite

Aims: Several guidelines propose target levels (TLs) of atherosclerotic risk factors (ARFs) to reduce atherosclerotic cardiovascular diseases; however, few data are available regarding the attainment statuses of TLs in Japan. In this study, utilizing the data obtained from the annual "Specific Health Check and Guidance in Japan" conducted from 2008 to 2011 (approximately 280,000 subjects each year), we determined TL attainments of ARFs in cardiovascular high-risk subjects. Methods: Those who had suffered from cerebrovascular disease (pCVD) or coronary heart disease (pCHD) or were receiving diabetes mellitus treatment (DM) were selected, and the rates of subjects that attained TLs of blood pressure (BP), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides (TGs) and glycated hemoglobin (HbA1c) were analyzed. Results: Approximately 70% of pCVD or pCHD and 35% of subjects with DM attained TLs of BP. With regard to HbA1c, 90% of pCVD or pCHD and approximately 50% of subjects with DM attained TLs. With regard to LDL-C, 25% of pCHD females and approximately 35% of pCHD males and 50%-55% of subjects with pCVD or DM attained TLs. The TL-attainment rates of HDL-C and TGs were approximately 90% and 75%, respectively, for the three diseases. Analyses of time course changes in their attainment statuses revealed that the attainment rates of BP and LDL-C significantly improved in all the diseases. Conclusions: TL-attainment rates of BP and LDL-C were not as high as those for HDL-C, TGs, and HbA1c; however, they both showed highly significant improvements during the study period.

show abstract

“…12 It is seen that physical inactivity, consumption of alcohol, and long computer screen hours are linked to higher odds of sleep problems. 13 However, there is little known about the differential impact of unhealthy lifestyle on sleep quality in male and female young adults.…”

mentioning

confidence: 99%

Exploring Gender Difference in Sleep Quality of Young Adults: Findings from a Large Population Study

et al. 2016

View full text Add to dashboard Cite

Objectives:To explore if gender difference in sleep quality is due to higher prevalence of depression in females, and whether socio-demographic and lifestyle factors have a differential effect on sleep quality in males and females.Methods: Youth self-reports and the Pittsburgh Sleep Quality Index were used to assess sleep quality and associated risk factors. Logistic regression analyses were used to analyze the association between various risk factors and poor sleep quality. Results:Reports from 3,778 young adults (20.6±0.86 years) indicate a higher prevalence of poor sleep quality in females than males (65.1% vs. 49.8%). It seems that gender difference in poor sleep is independent of depression, socio-demographics, and lifestyle factors, since the higher odds of poor sleep quality in females was robust to adjust for depression, socio-demographics, and lifestyle factors (OR: 1.53, 95% CI: 1.23-1.90). Lifestyle factors (eg, smoking) (OR 1.91; 95% CI 1.05-3.46) were associated with sleep quality in only males. Conclusion:Our findings indicate that female vulnerability to poor sleep quality should be explored beyond psycho-social disparities. Perhaps, exploring if the female predisposition to poor sleep quality originates at the biological level could lead to the answer.

show abstract

Association between Combined Lifestyle Factors and Non-Restorative Sleep in Japan: A Cross-Sectional Study Based on a Japanese Health Database

Cited by 52 publications

References 57 publications

Combined association of clinical and lifestyle factors with non-restorative sleep: The Nagahama Study

Combined association of clinical and lifestyle factors with non-restorative sleep: The Nagahama Study

Control Status of Atherosclerotic Cardiovascular Risk Factors Among Japanese High-Risk Subjects:Analyses of a Japanese Health Check Database from 2008 to 2011

Exploring Gender Difference in Sleep Quality of Young Adults: Findings from a Large Population Study

Contact Info

Product

Resources

About