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Storz MA, Ronco AL. Serum levels of copper but not zinc are associated with head and chest cold in the NHANES. J Trace Elem Med Biol 2024; 82:127353. [PMID: 38071863 DOI: 10.1016/j.jtemb.2023.127353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/19/2023] [Accepted: 12/03/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Common colds are among the top reasons children miss school and adults miss work. The Centers for Disease Control and Prevention estimates that there are millions of cases of the common cold in the United States each year. The essential trace elements zinc and copper have immunomodulatory functions, and zinc has been reported to reduce the general risk of infection, whereas the copper-to-zinc ratio has been associated with an increased risk of incident infections in middle-aged men. Studies involving these two trace elements are generally scarce and were often limited to men. MATERIAL AND METHODS We used data from the National Health and Nutrition Examination Surveys (NHANES) to examine potential associations between head or chest cold events and serum levels of copper and zinc in n = 2795 NHANES participants enrolled between 2011 and 2016. RESULTS Comparing participants with and without an event of head or chest cold in the last 30 days, no significant differences were found in the serum levels of both trace elements. Notably, copper levels tended to be slightly higher in participants with a recent infection (121.56 (2.69) µg/dl) as compared to participants without infection (117.755 (1.04) µg/dl; p = 0.119). In multivariate logistic regression models adjusting for confounders, copper levels were significantly associated with increased odds for a previous head/chest cold (OR: 1.93 (CI: 1.07-3.47), p = 0.028). Notably, no significant associations were found for zinc and the copper-to-zinc ratio. CONCLUSIONS Elevated copper levels were associated with head and chest cold events in the past 30 days. Whether elevated copper levels reflect a pro-inflammatory infection-predisposing status or whether they were elevated subsequent to the infectious event in some individuals in the sense of a reversed causality remains subject to future research.
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Affiliation(s)
- Maximilian Andreas Storz
- Department of Internal Medicine II, Centre for Complementary Medicine, Freiburg University Hospital, Faculty of Medicine, University of Freiburg, Germany.
| | - Alvaro Luis Ronco
- Unit of Oncology and Radiotherapy, Pereira Rossell Women's Hospital, Montevideo, Uruguay; School of Medicine, CLAEH University, Prado and Salt Lake, 20100 Maldonado, Uruguay; Biomedical Sciences Center, University of Montevideo, Puntas de Santiago 1604, 11500 Montevideo, Uruguay
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Bjorvatn B, Rørtveit G, Rebnord I, Waage S, Emberland KE, Forthun I. Self-reported short and long sleep duration, sleep debt and insomnia are associated with several types of infections: Results from the Norwegian practice-based research network in general practice - PraksisNett. Sleep Med X 2023; 5:100074. [PMID: 37223609 PMCID: PMC10200965 DOI: 10.1016/j.sleepx.2023.100074] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 04/26/2023] [Accepted: 05/04/2023] [Indexed: 05/25/2023] Open
Abstract
Objective The objective was to assess the association between self-reported infections and sleep duration, sleep debt, chronic insomnia, and insomnia severity. Methods In total, 1023 participants were recruited from the Norwegian practice-based research network in general practice to a cross-sectional online survey with validated questions about sleep habits and insomnia symptoms (Bergen Insomnia Scale (BIS) and Insomnia Severity Index (ISI)), and whether they had experienced various infections during the last three months. Data were analyzed with chi-square tests and logistic regressions with adjustment for relevant confounders. Results Self-reported short sleep duration (<6 h) was significantly associated with increased odds of throat infection (OR = 1.60), ear infection (OR = 2.92), influenzalike illness (OR = 1.81) and gastrointestinal infection (OR = 1.91) whereas long sleep duration (>9 h) was associated with increased odds of throat (OR = 3.33) and ear infections (OR = 5.82), compared to sleep duration of 6-9 h, respectively. Sleep debt of >2 h was associated with increased odds of the common cold (OR = 1.67), throat infection (OR = 2.58), ear infection (OR = 2.84), sinusitis (OR = 2.15), pneumonia/bronchitis (OR = 3.97), influenzalike illness (OR = 2.66), skin infection (OR = 2.15), and gastrointestinal infection (OR = 2.80), compared to no sleep debt. Insomnia (based on BIS and ISI) was associated with throat infection (OR = 2.06, 2.55), ear infection (OR = 2.43, 2.45), sinusitis (OR = 1.82, 1.80), pneumonia/bronchitis (OR = 2.23, 3.59), influenzalike illness (OR = 1.77, 1.90), skin infection (OR = 1.64, 2.06), gastrointestinal infection (OR = 1.94, 3.23), and eye infection (OR = 1.99, 2.95). Conclusions These novel findings support the notion that people who have insufficient sleep or sleep problems are at increased risk of infections.
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Affiliation(s)
- Bjørn Bjorvatn
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
| | - Guri Rørtveit
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Ingrid Rebnord
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Siri Waage
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
- Department of Psychosocial Science, University of Bergen, Bergen, Norway
| | - Knut Erik Emberland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Ingeborg Forthun
- Department of Disease Burden, Norwegian Institute of Public Health, Bergen, Norway
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Forthun I, Eliassen KER, Emberland KE, Bjorvatn B. The association between self-reported sleep problems, infection, and antibiotic use in patients in general practice. Front Psychiatry 2023; 14:1033034. [PMID: 36937728 PMCID: PMC10017838 DOI: 10.3389/fpsyt.2023.1033034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 01/30/2023] [Indexed: 03/06/2023] Open
Abstract
Objectives There is emerging evidence that sleep problems and short sleep duration increase the risk of infection. We aimed to assess whether chronic insomnia disorder, chronic sleep problems, sleep duration and circadian preference based on self-report were associated with risk of infections and antibiotic use among patients visiting their general practitioner (GP). Methods We conducted a cross-sectional study of 1,848 unselected patients in Norway visiting their GP during 2020.The patients completed a one-page questionnaire while waiting for the consultation, that included the validated Bergen Insomnia Scale (BIS), questions on self-assessed sleep problem, sleep duration and circadian preference and whether they have had any infections or used antibiotics in the last 3 months. Relative risks (RR) were estimated using modified Poisson regression models. Results The risk of infection was 27% (95% CI RR 1.11-1.46) and 44% higher (95% CI 1.12-1.84) in patients sleeping < 6 h and >9 h, respectively, compared to those sleeping 7-8 h. The risk was also increased in patients with chronic insomnia disorder or a chronic sleep problem. For antibiotic use, the risk was higher for patients sleeping < 6 h, and for those with chronic insomnia disorder or a chronic sleep problem. Conclusions Among patients visiting their GP, short sleep duration, chronic insomnia and chronic sleep problem based on self-report were associated with higher prevalence of infection and antibiotic use. These findings support the notion of a strong association between sleep and infection.
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Affiliation(s)
- Ingeborg Forthun
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Disease Burden, Norwegian Institute of Public Health, Bergen, Norway
| | | | - Knut Erik Emberland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Bjørn Bjorvatn
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
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Montesinos-Guevara C, Buitrago-Garcia D, Felix ML, Guerra CV, Hidalgo R, Martinez-Zapata MJ, Simancas-Racines D. Vaccines for the common cold. Cochrane Database Syst Rev 2022; 12:CD002190. [PMID: 36515550 PMCID: PMC9749450 DOI: 10.1002/14651858.cd002190.pub6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The common cold is a spontaneously remitting infection of the upper respiratory tract, characterised by a runny nose, nasal congestion, sneezing, cough, malaise, sore throat, and fever (usually < 37.8 ºC). Whilst the common cold is generally not harmful, it is a cause of economic burden due to school and work absenteeism. In the United States, economic loss due to the common cold is estimated at more than USD 40 billion per year, including an estimate of 70 million workdays missed by employees, 189 million school days missed by children, and 126 million workdays missed by parents caring for children with a cold. Additionally, data from Europe show that the total cost per episode may be up to EUR 1102. There is also a large expenditure due to inappropriate antimicrobial prescription. Vaccine development for the common cold has been difficult due to antigenic variability of the common cold viruses; even bacteria can act as infective agents. Uncertainty remains regarding the efficacy and safety of interventions for preventing the common cold in healthy people, thus we performed an update of this Cochrane Review, which was first published in 2011 and updated in 2013 and 2017. OBJECTIVES To assess the clinical effectiveness and safety of vaccines for preventing the common cold in healthy people. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (April 2022), MEDLINE (1948 to April 2022), Embase (1974 to April 2022), CINAHL (1981 to April 2022), and LILACS (1982 to April 2022). We also searched three trials registers for ongoing studies, and four websites for additional trials (April 2022). We did not impose any language or date restrictions. SELECTION CRITERIA Randomised controlled trials (RCTs) of any virus vaccine compared with placebo to prevent the common cold in healthy people. DATA COLLECTION AND ANALYSIS We used Cochrane's Screen4Me workflow to assess the initial search results. Four review authors independently performed title and abstract screening to identify potentially relevant studies. We retrieved the full-text articles for those studies deemed potentially relevant, and the review authors independently screened the full-text reports for inclusion in the review, recording reasons for exclusion of the excluded studies. Any disagreements were resolved by discussion or by consulting a third review author when needed. Two review authors independently collected data on a data extraction form, resolving any disagreements by consensus or by involving a third review author. We double-checked data transferred into Review Manager 5 software. Three review authors independently assessed risk of bias using RoB 1 tool as outlined in the Cochrane Handbook for Systematic Reviews of Interventions. We carried out statistical analysis using Review Manager 5. We did not conduct a meta-analysis, and we did not assess publication bias. We used GRADEpro GDT software to assess the certainty of the evidence and to create a summary of findings table. MAIN RESULTS: We did not identify any new RCTs for inclusion in this update. This review includes one RCT conducted in 1965 with an overall high risk of bias. The RCT included 2307 healthy young men in a military facility, all of whom were included in the analyses, and compared the effect of three adenovirus vaccines (live, inactivated type 4, and inactivated type 4 and 7) against a placebo (injection of physiological saline or gelatin capsule). There were 13 (1.14%) events in 1139 participants in the vaccine group, and 14 (1.19%) events in 1168 participants in the placebo group. Overall, we do not know if there is a difference between the adenovirus vaccine and placebo in reducing the incidence of the common cold (risk ratio 0.95, 95% confidence interval 0.45 to 2.02; very low-certainty evidence). Furthermore, no difference in adverse events when comparing live vaccine preparation with placebo was reported. We downgraded the certainty of the evidence to very low due to unclear risk of bias, indirectness because the population of this study was only young men, and imprecision because confidence intervals were wide and the number of events was low. The included study did not assess vaccine-related or all-cause mortality. AUTHORS' CONCLUSIONS: This Cochrane Review was based on one study with very low-certainty evidence, which showed that there may be no difference between the adenovirus vaccine and placebo in reducing the incidence of the common cold. We identified a need for well-designed, adequately powered RCTs to investigate vaccines for the common cold in healthy people. Future trials on interventions for preventing the common cold should assess a variety of virus vaccines for this condition, and should measure such outcomes as common cold incidence, vaccine safety, and mortality (all-cause and related to the vaccine).
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Affiliation(s)
- Camila Montesinos-Guevara
- Cochrane Ecuador, Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Diana Buitrago-Garcia
- Institute of Social and Preventive Medicine (ISPM), Graduate School of Health Sciences, University of Bern, Bern, Switzerland
| | - Maria L Felix
- Departamento de Neonatología, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Claudia V Guerra
- Cochrane Ecuador, Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Ricardo Hidalgo
- Cochrane Ecuador, Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Maria José Martinez-Zapata
- Cochrane Ecuador, Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Daniel Simancas-Racines
- Cochrane Ecuador, Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
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Robinson CH, Albury C, McCartney D, Fletcher B, Roberts N, Jury I, Lee J. The relationship between duration and quality of sleep and upper respiratory tract infections: a systematic review. Fam Pract 2021; 38:802-810. [PMID: 33997896 PMCID: PMC8656143 DOI: 10.1093/fampra/cmab033] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Upper respiratory tract infections (URTIs) are common, mostly self-limiting, but result in inappropriate antibiotic prescriptions. Poor sleep is cited as a factor predisposing to URTIs, but the evidence is unclear. OBJECTIVE To systematically review whether sleep duration and quality influence the frequency and duration of URTIs. METHODS Three databases and bibliographies of included papers were searched for studies assessing associations between sleep duration or quality and URTIs. We performed dual title and abstract selection, discussed full-text exclusion decisions and completed 50% of data extraction in duplicate. The Newcastle-Ottawa Quality Assessment Scale assessed study quality and we estimated odds ratios (ORs) using random effects meta-analysis. RESULTS Searches identified 5146 papers. Eleven met inclusion criteria, with nine included in meta-analyses: four good, two fair and five poor for risk of bias. Compared to study defined 'normal' sleep duration, shorter sleep was associated with increased URTIs (OR: 1.30, 95% confidence interval [CI]: 1.19-1.42, I2: 11%, P < 0.001) and longer sleep was not significantly associated (OR: 1.11 95% CI: 0.99-1.23, I2: 0%, P = 0.070). Sensitivity analyses using a 7- to 9-hour baseline found that sleeping shorter than 7-9 hours was associated with increased URTIs (OR: 1.31, 95% CI: 1.22-1.41, I2: 0%, P < 0.001). Sleeping longer than 7-9 hours was non-significantly associated with increased URTIs (OR: 1.15, 95% CI: 1.00-1.33, I2: 0%, P = 0.050, respectively). We were unable to pool sleep quality studies. No studies reported on sleep duration and URTI severity or duration. CONCLUSIONS Reduced sleep, particularly shorter than 7-9 hours, is associated with increased URTIs. Strategies improving sleep should be explored to prevent URTIs.
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Affiliation(s)
| | - Charlotte Albury
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - David McCartney
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Benjamin Fletcher
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Nia Roberts
- Bodleian Health Care Libraries, University of Oxford, Oxford, UK
| | - Imogen Jury
- Department of Medical Sciences, University of Oxford, Oxford, UK
| | - Joseph Lee
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
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Seifert G, Jeitler M, Stange R, Michalsen A, Cramer H, Brinkhaus B, Esch T, Kerckhoff A, Paul A, Teut M, Ghadjar P, Langhorst J, Häupl T, Murthy V, Kessler CS. The Relevance of Complementary and Integrative Medicine in the COVID-19 Pandemic: A Qualitative Review of the Literature. Front Med (Lausanne) 2020; 7:587749. [PMID: 33363186 PMCID: PMC7761649 DOI: 10.3389/fmed.2020.587749] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/17/2020] [Indexed: 01/07/2023] Open
Abstract
Background: During the COVID-19 pandemic people are facing risks of adverse health effects due to the restrictions implemented such as quarantine measures, reduced social contact, and self-isolation. In this qualitative review, we collected data on potential preventive and therapeutic health benefits of Complementary and Integrative Medicine (CIM) that might be useful during the COVID-19 pandemic. We have reviewed the scientific literature to summarize CIM practices that could be beneficial for improving physical and mental health and well-being of the population under the current pandemic circumstances. It must be noted that this review is not SARS-CoV-2 specific and we explicitly do not intend to make any SARS-CoV-2 specific health claims in this article. Methods and Findings: A qualitative, non-systematic literature review was conducted in Medline to identify literature describing preventive and therapeutic CIM approaches for strengthening mental and physical health. For a variety of CIM approaches clinical evidence was identified, indicating beneficial effects. CIM approaches include specific dietary measures and selected micronutrients, physical activity, techniques from Mind-Body Medicine, single botanicals or botanical compounds, and spending time in nature among others. The effects of CIM measures on conditions like obesity and hypertension are of special relevance here, as these conditions are considered as risk factors for a severe course of COVID-19. Moreover, a possibly direct effect of CIM approaches on immune functions and clinical parameters in respiratory tract infections, such as influenza, were identified. The findings of this review could be helpful for clinicians, patients, and the general population during the current pandemic when discussing and/or considering CIM options. Conclusions: CIM offers a variety of preventive and therapeutic options for strengthening physical and mental resilience, which could also be useful in the current COVID-19 pandemic. The evidence of CIM approaches with a potential benefit in the COVID-19 pandemic in different areas is worth to be analyzed. While this qualitative review has several obvious limitations, it might serve as useful starting point for further research on this topic.
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Affiliation(s)
- Georg Seifert
- Department of Paediatric Oncology/Haematology, Otto-Heubner Centre for Paediatric and Adolescent Medicine (OHC), Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,Department of Pediatrics, Faculty of Medicine, University of São Paulo, São Paulo, Brazil,*Correspondence: Georg Seifert
| | - Michael Jeitler
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Rainer Stange
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Andreas Michalsen
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Holger Cramer
- Department of Internal and Integrative Medicine, Evang. Kliniken Essen-Mitte, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany,National Centre for Naturopathic Medicine, Southern Cross University, Lismore, NSW, Australia
| | - Benno Brinkhaus
- Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Tobias Esch
- Institute for Integrative Health Care and Health Promotion, University Clinic for Integrative Health Care, Faculty of Health, School of Medicine, Witten/Herdecke University, Witten, Germany
| | - Annette Kerckhoff
- Institute for Integrative Health Care and Health Promotion, University Clinic for Integrative Health Care, Faculty of Health, School of Medicine, Witten/Herdecke University, Witten, Germany
| | - Anna Paul
- Department of Internal and Integrative Medicine, Evang. Kliniken Essen-Mitte, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - Michael Teut
- Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Pirus Ghadjar
- Department of Radiation Oncology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jost Langhorst
- Department of Internal and Integrative Medicine, Klinikum Bamberg, Chair for Integrative Medicine, University of Duisburg-Essen, Bamberg, Germany
| | - Thomas Häupl
- Department of Rheumatology and Clinical Immunology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Vijay Murthy
- Faculty of Medicine, Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Christian S. Kessler
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Gomi S. Short-term insomnia and common cold: A cross-sectional study. J Gen Fam Med 2019; 20:244-250. [PMID: 31788402 PMCID: PMC6875524 DOI: 10.1002/jgf2.278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 08/16/2019] [Accepted: 08/22/2019] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The role of insomnia as a symptom of cold has not been fully explored. This study aimed to identify the nature of mild short-term insomnia (MSTI) as a symptom in common cold and examine the relationship between the diagnosis of common cold and MSTI. METHODS A cross-sectional study was conducted at a clinic in Nagano, Japan. In this study, 32 participants were recruited as common cold patients, and 30 people without common cold were selected as the comparison group who did not have any symptoms of fever, cough, septum, rhinorrhea, or sore throat in this period. RESULTS About 75% of patients in the common cold group (CCG; 24 of 32) and 33% of total patients in the not common cold group (NCCG; 10 of 30) showed MSTI. The prevalence of MSTI was significantly more frequent in patients in CC (χ2 = 10.854, df = 1, P < .001). MSTI occurred on an average of 1.0 day (SD = 1.4) before the common cold onset and continued for a mean of 2 days (SD = 1.6). The frequency of fever was related to age, but MSTI appeared regardless of age. CONCLUSION Mild short-term insomnia is a common symptom in common cold.
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