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Li Q, Yamamoto R, Shinzawa M, Otsuki N, Matsumura Y, Nakamura Y, Mizui M, Matsui I, Sakaguchi Y, Shinomiya H, Ishibashi C, Adachi H, Nakanishi K, Nagatomo I. Short sleep duration and smoking initiation in university students: a retrospective cohort study. Sleep Breath 2024:10.1007/s11325-024-03014-3. [PMID: 38637352 DOI: 10.1007/s11325-024-03014-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/05/2024] [Accepted: 02/23/2024] [Indexed: 04/20/2024]
Abstract
PURPOSE The aim of this study was to clarify an association between short sleep duration and smoking initiation. METHODS Participants eligible for this retrospective cohort study were university students who were admitted to a single national university in Japan between 2007 and 2015. Baseline sleep duration and smoking status were measured using general questionnaires at health checkups at admission. During a 6-year observation period, smoking initiation was assessed using general questionnaires at annual health checkups. Cox proportional hazards models adjusted for clinically relevant factors were used to assess the association between sleep duration and smoking initiation. RESULTS Of 17,493 men, including 540, 5,568, 8,458, 2,507, and 420 men with sleep duration of < 5, 5-6, 6-7, 7-8, and ≥ 8 h, respectively, smoking initiation was observed in 16.1%, 12.5%, 11.2%, 10.0%, and 11.7%, respectively, during a median observation period of 3.0 years. Men with shorter sleep duration were at a higher risk of smoking initiation (adjusted hazard ratio 1.49 [95% confidence interval 1.19-1.85], 1.11 [1.01-1.22], 1.00 [reference], 0.92 [0.80-1.06], and 1.00 [0.75-1.34], respectively). Of 8,880 women, including 267, 3,163, 4,220, and 1,230 women with sleep duration of < 5, 5-6, 6-7, and ≥ 7 h, respectively, smoking initiation was observed in 4.9%, 2.3%, 2.0%, and 2.2%, respectively, during a median observation period of 3.0 years. A similar dose dependent association was ascertained in women (2.50 [1.39-4.49], 1.18 [0.86-1.62], 1.00 [reference], and 1.22 [0.79-1.89], respectively). CONCLUSION This study clarified that university students with short sleep duration were vulnerable to smoking initiation.
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Affiliation(s)
- Qinyan Li
- Laboratory of Behavioral Health Promotion, Department of Health Promotion Medicine, Graduate School of Medicine, Osaka University, Toyonaka, Japan
| | - Ryohei Yamamoto
- Laboratory of Behavioral Health Promotion, Department of Health Promotion Medicine, Graduate School of Medicine, Osaka University, Toyonaka, Japan.
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan.
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Japan.
| | - Maki Shinzawa
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Naoko Otsuki
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Yuichiro Matsumura
- Laboratory of Behavioral Health Promotion, Department of Health Promotion Medicine, Graduate School of Medicine, Osaka University, Toyonaka, Japan
| | - Yuko Nakamura
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Masayuki Mizui
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Isao Matsui
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yusuke Sakaguchi
- Department of Inter-Organ Communication Research in Kidney Diseases, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan
| | - Haruki Shinomiya
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Chisaki Ishibashi
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Hiroyoshi Adachi
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Kaori Nakanishi
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Izumi Nagatomo
- Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
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Okekunle AP, Asowata OJ, Danladi DK, Ogunjuyigbe AS, Akpa OM. Association of second-hand smoking with sleep quality among adults in Ibadan, Nigeria: a cross-sectional evaluation of data from the COMBAT-CVDs study. Int Arch Occup Environ Health 2024; 97:279-289. [PMID: 38252129 DOI: 10.1007/s00420-023-02042-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/12/2023] [Indexed: 01/23/2024]
Abstract
PURPOSE Sleep quality (SQ) is essential in the overall well-being and quality of life, but little is known about the association of secondhand smoking (SHS) with SQ. This study assessed the relationship between SHS and SQ among adults who had never smoked in Ibadan, Nigeria. METHODS We identified 3193 respondents who had never smoked or used any form of tobacco product in the Community-based Investigation of the Risk Factors for Cardiovascular Diseases in the Ibadan and suburbs (COMBAT-CVDs) study. SHS was self-reported, SQ assessed using a sleep quality scale, and SQ scores were classified by the quartile distributions of SQ scores in this sample as good (< 7), moderate (7-13), fair (14-20), and poor (≥ 21), and logistic regression models were used to estimate the multivariable-adjusted odds ratio and 95% confidence interval (CI) of the association between SHS and SQ in a two-sided test at P < 0.05. RESULTS The mean (SD) of age in this sample was 34.8 ± 15.1 years; 1621 (50.8%) were females, and 848 (26.6%) experienced SHS. The multivariable-adjusted odds by categories of SQ scores (using good SQ as reference) in the light of SHS were OR: 1.64 (95%CI 1.28, 2.12) for moderate SQ, OR: 1.88 (95%CI 1.46, 2.42) for fair SQ and OR: 2.14 (95%CI 1.66, 2.75) for poor SQ; P < 0.0001 after adjusting for relevant covariates. The sex- and age groups- stratified analyses revealed similar trends. CONCLUSION SHS is associated with higher odds of poor SQ in this study. Culturally relevant interventions for mitigating exposure to SHS might improve SQ and overall quality of life, particularly among vulnerable populations.
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Affiliation(s)
- Akinkunmi Paul Okekunle
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, 200284, Nigeria
- The Postgraduate College, University of Ibadan, Ibadan, 200284, Nigeria
- Research Institute of Human Ecology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Osahon Jeffery Asowata
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, 200284, Nigeria
| | - David Kadan Danladi
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, 200284, Nigeria
| | - Ayodeji Samson Ogunjuyigbe
- The Postgraduate College, University of Ibadan, Ibadan, 200284, Nigeria
- Department of Electrical and Electronic Engineering, Faculty of Technology, University of Ibadan, Ibadan, 200284, Nigeria
| | - Onoja Matthew Akpa
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, 200284, Nigeria.
- The Postgraduate College, University of Ibadan, Ibadan, 200284, Nigeria.
- Institute of Cardiovascular Diseases, College of Medicine, University of Ibadan, Ibadan, 200284, Nigeria.
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public Health, University of Memphis, Memphis, USA.
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Sun N, Ni Y, Deng Y, Qi J, Yu Z, Wu C, He J, Wu Y. The association between passive smoking and sleep quality in a Chinese hypertensive population: A cross-sectional study. Tob Induc Dis 2024; 22:TID-22-30. [PMID: 38314377 PMCID: PMC10835764 DOI: 10.18332/tid/176929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 02/06/2024] Open
Abstract
INTRODUCTION This study evaluates the association between passive smoking, specifically secondhand smoke (SHS) and thirdhand smoke (THS) exposure, and sleep quality in a hypertensive population. METHODS We enrolled 1427 eligible hypertensive patients from a 2022 national cross-sectional survey in China. Data on tobacco smoke exposure and sleep were collected via questionnaires. Multiple logistic regression and linear regression were employed to assess the relationship between passive smoking and sleep quality characteristics, as well as the correlation between passive smoking exposure characteristics and sleep quality. RESULTS Among 589 hypertensive patients with no tobacco smoke exposure, 679 exposed to SHS, and 159 exposed to THS, SHS exposure was associated with a higher risk of poor sleep quality, even after adjusting for potential confounding factors (β=0.10; 95% CI: 0.32-0.95). No significant relationship was observed between THS exposure and sleep quality. SHS exposure was associated with various sleep quality characteristics, including shorter sleep duration (AOR=1.71; 95% CI: 1.06-2.76) and increased frequency of 1-2 sleep disturbances per week (AOR=1.68; 95% CI: 1.25-2.26). Individuals exposed to SHS were more likely to experience poorer subjective sleep quality (AOR=1.53; 95% CI: 1.07-2.21) and have sleep efficiency <65% (AOR=1.82; 95% CI: 1.22-2.71). Exposure to passive smoking at home, in the community, in public places, exposure to passive smoking with family and friends, and increased frequency of exposure, were all associated with a higher risk of poor sleep quality. CONCLUSIONS Our study suggests that SHS exposure in hypertensive populations is associated with poor sleep quality and various characteristics of sleep quality. No significant association was found between THS exposure and sleep quality. These findings underscore the need to enhance tobacco control efforts in China, particularly for individuals with chronic diseases, to safeguard public health.
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Affiliation(s)
- Niuniu Sun
- School of Nursing, Henan University of Science and Technology, Luoyang, China
| | - Yang Ni
- School of Nursing, Henan University of Science and Technology, Luoyang, China
| | - Yuqian Deng
- Xiangya School of Nursing, Central South University, Changsha, China
| | - Jiale Qi
- School of Journalism and Communication, Zhengzhou University, Zhengzhou, China
| | - Zhenjie Yu
- School of Nursing, Tianjin Medical University, Tianjin, China
| | - Chang Wu
- School of Nursing, Henan University of Science and Technology, Luoyang, China
| | - Juan He
- School of Nursing, Henan University of Science and Technology, Luoyang, China
| | - Yibo Wu
- School of Nursing, Henan University of Science and Technology, Luoyang, China
- School of Public Health, Peking University, Beijing, China
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Karunanayake CP, Pahwa P, Kirychuk S, Fenton M, Ramsden VR, Seeseequasis J, Seesequasis W, Skomro R, Rennie DC, McMullin K, Russell BP, Koehncke N, Abonyi S, King M, Dosman JA. Sleep Efficiency and Sleep Onset Latency in One Saskatchewan First Nation. Clocks Sleep 2024; 6:40-55. [PMID: 38247884 PMCID: PMC10801613 DOI: 10.3390/clockssleep6010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Sleep efficiency and sleep onset latency are two measures that can be used to assess sleep quality. Factors that are related to sleep quality include age, sex, sociodemographic factors, and physical and mental health status. This study examines factors related to sleep efficiency and sleep onset latency in one First Nation in Saskatchewan, Canada. METHODS A baseline survey of the First Nations Sleep Health project was completed between 2018 and 2019 in collaboration with two Cree First Nations. One-night actigraphy evaluations were completed within one of the two First Nations. Objective actigraphy evaluations included sleep efficiency and sleep onset latency. A total of 167 individuals participated, and of these, 156 observations were available for analysis. Statistical analysis was conducted using logistic and linear regression models. RESULTS More females (61%) than males participated in the actigraphy study, with the mean age being higher for females (39.6 years) than males (35.0 years). The mean sleep efficiency was 83.38%, and the mean sleep onset latency was 20.74 (SD = 27.25) minutes. Age, chronic pain, ever having high blood pressure, and smoking inside the house were associated with an increased risk of poor sleep efficiency in the multiple logistic regression model. Age, chronic pain, ever having anxiety, heart-related illness, and smoking inside the house were associated with longer sleep onset latency in the multiple linear regression model. CONCLUSIONS Sleep efficiency and sleep onset latency were associated with physical and environmental factors in this First Nation.
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Affiliation(s)
- Chandima P. Karunanayake
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
| | - Punam Pahwa
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
- Department of Community Health & Epidemiology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK S7N 5E5, Canada; (S.A.); (M.K.)
| | - Shelley Kirychuk
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
- Department of Medicine, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada; (M.F.); (R.S.)
| | - Mark Fenton
- Department of Medicine, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada; (M.F.); (R.S.)
| | - Vivian R. Ramsden
- Department of Academic Family Medicine, University of Saskatchewan, West Winds Primary Health Centre, 3311 Fairlight Drive, Saskatoon, SK S7M 3Y5, Canada;
| | - Jeremy Seeseequasis
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
| | | | - Robert Skomro
- Department of Medicine, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada; (M.F.); (R.S.)
| | - Donna C. Rennie
- College of Nursing, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada;
| | - Kathleen McMullin
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
| | - Brooke P. Russell
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
| | - Niels Koehncke
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
- Department of Medicine, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada; (M.F.); (R.S.)
| | - Sylvia Abonyi
- Department of Community Health & Epidemiology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK S7N 5E5, Canada; (S.A.); (M.K.)
| | - Malcolm King
- Department of Community Health & Epidemiology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK S7N 5E5, Canada; (S.A.); (M.K.)
| | - James A. Dosman
- Canadian Centre for Rural and Agricultural Health, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada; (P.P.); (S.K.); (J.S.); (K.M.); (B.P.R.); (N.K.); (J.A.D.)
- Department of Medicine, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada; (M.F.); (R.S.)
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Oh S, Kim S, Sung E, Kim CH, Kang JH, Shin H, Cho IY. The association between cotinine-measured smoking
intensity and sleep quality. Tob Induc Dis 2022; 20:77. [PMID: 36118556 PMCID: PMC9443078 DOI: 10.18332/tid/152221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/29/2022] [Accepted: 07/19/2022] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION METHODS RESULTS CONCLUSIONS
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Affiliation(s)
- Supa Oh
- Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sinae Kim
- Division of Biostatistics, Department of R&D Management, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Eunju Sung
- Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Cheol-Hwan Kim
- Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae-Heon Kang
- Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hocheol Shin
- Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - In Young Cho
- Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Hwang JH, Park SW. The relationship between poor sleep quality measured by Pittsburgh Sleep Quality Index and cigarette smoking according to sex and age. Epidemiol Health 2022; 44:e2022022. [PMID: 35167741 PMCID: PMC9117098 DOI: 10.4178/epih.e2022022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 02/14/2022] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVES Multiple studies have found that cigarette smokers are more likely to experience sleep disturbances than non-smokers. This study aimed to examine various associations between smoking and sleep quality according to sex and age, which have yet to be sufficiently examined in prior studies. METHODS Data analysis was conducted using a nationally representative sample of 224,986 Korean adults who participated in the 2018 Korea Community Health Survey. Sleep quality, as the dependent variable, was measured using the Pittsburgh Sleep Quality Index (PSQI), with PSQI scores indicating either good (≤4 points) or poor (>5 points) sleep quality. Multiple logistic regression analysis was performed considering socio-demographic factors, health behaviors, comorbidities, and psychological factors as covariates. RESULTS The overall weighted prevalence of poor sleep quality was 39.4% (95% confidence interval, 39.1 to 39.7). In the multivariate model that excluded psychological factors, poor sleep quality positively correlated to smoking for both sexes and all age groups except for male aged ≥65 years. However, in the full model that included psychological factors, statistically significant odds ratios (approximately 1.5) for poor sleep quality according to smoking status were only observed for female under 65 years of age. CONCLUSIONS The relationship between poor sleep quality and smoking status differed according to sex and age. In order to improve the quality of sleep, it is necessary to intervene smoking cessation along with solving psychological problems, especially female in middle age and younger.
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Affiliation(s)
- Jun Hyun Hwang
- Department of Preventive Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
| | - Soon-Woo Park
- Department of Preventive Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
- Correspondence: Soon-Woo Park Department of Preventive Medicine, Daegu Catholic University School of Medicine, 33 Duryugongwon-ro 17-gil, Nam-gu, Daegu 42472, Korea E-mail:
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Combs D, Hsu CH, Bailey O, Patel SI, Mashaqi S, Estep L, Provencio-Dean N, Lopez S, Parthasarathy S. Differences in sleep timing and related effects between African Americans and non-Hispanic Whites. J Clin Sleep Med 2021; 17:897-908. [PMID: 33382030 PMCID: PMC8320474 DOI: 10.5664/jcsm.9060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 12/25/2022]
Abstract
STUDY OBJECTIVES Prior studies have shown a morning chronotype for African Americans compared with non-Hispanic Whites, yet self-reported sleep timing is delayed in African Americans compared with Whites. METHODS We analyzed data from the Multi-Ethnicity Study of Atherosclerosis, a multisite community-based cohort. Self-reported and actigraphic sleep timing, chronotype measured by the modified Horne-Östberg Morningness-Eveningness Questionnaire, and risk of depression measured by the Center for Epidemiologic Studies Depression scale were examined using nonparametric approaches and linear or logistic regression while comparing between African Americans and Whites and evaluating the effects of delayed sleep phase. RESULTS In 1,401 participants, there was no difference in chronotype between African Americans and Whites. African Americans were 80% more likely to report a delayed sleep phase (defined as bedtime after midnight) on weekdays and 50% more likely on weekends than were Whites. Actigraphic data showed similar results. Actigraphic midsleep time was delayed 38 minutes on weekdays and 24 minutes on weekends in African Americans compared with Whites. Stratified analysis by chronotype showed that African Americans with a morning or intermediate chronotype had a significantly delayed sleep phase compared with Whites, but there was no difference between African Americans and Whites with an evening chronotype. Delayed sleep phase was associated with depression, but this relationship was only significant in White participants. CONCLUSIONS African Americans had a delayed sleep phase compared with Whites that was more pronounced in individuals with a morning or intermediate chronotype. Consequences of delayed sleep phase may vary by race and ethnicity.
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Affiliation(s)
- Daniel Combs
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
- Department of Pediatrics, University of Arizona, Tucson, Arizona
| | - Chiu-Hsieh Hsu
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, Tucson, Arizona
| | - Omavi Bailey
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Salma I. Patel
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Saif Mashaqi
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Lauren Estep
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Natalie Provencio-Dean
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Silvia Lopez
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Sairam Parthasarathy
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
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