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Christofaro DGD, Ritti-Dias RM, Tebar WR, Werneck AO, Bittencourt MS, Cucato GG, Santos RD. Are C-reactive protein concentrations affected by smoking status and physical activity levels? A longitudinal study. PLoS One 2023; 18:e0293453. [PMID: 37943853 PMCID: PMC10635525 DOI: 10.1371/journal.pone.0293453] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 10/13/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND AND OBJECTIVE To compare high-sensitivity C-reactive protein (hsCRP) levels according to smoking status and physical activity (PA) changes in adults. METHODS The sample consisted of 6028 participants (4833 men) who underwent a voluntary routine health evaluation at the Preventive Medicine Center at the Hospital Israelita Albert Einstein, Sao Paulo, Brazil, from January 2007 to December 2013. Data were collected at baseline and follow-up (2.7±1.6 years). Plasma hsCRP (in mg/L) was analyzed in both moments. Smoking status was obtained through a self-reported questionnaire, being participants classified as non-smokers, once smokers (report smoking at baseline or follow-up), and persistently smokers (reported smoking at both baseline and follow-up). PA was assessed by questionnaire in both moments, being participants classified as persistently inactive, became inactive, became active, and persistently active. The Rank Analysis of Covariance was used to compare hsCRP follow-up values according to smoking and physical activity status. RESULTS Persistently smokers showed significantly higher median values of hsCRP at follow-up (1.3 mg/L, IQR:0.6-2.8) than once smokers (1.1 mg/L, IQR: 0.6-2.4) and non-smokers (1.0 mg/L, IQR: 0.5-2.2), even considering covariates (p<0.001). Persistently actives had lower levels of hsCRP at follow-up when compared to persistently inactive in the three smoking status groups (non-smokers p<0.001, once smokers p = 0.001, and persistently smokers p = 0.037). CONCLUSION Persistently active participants had lower hsCRP values at follow-up than those persistently inactive in all the smoking status groups. Regular practice of PA is an important strategy for facing low-grade inflammation, even among smokers.
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Affiliation(s)
- Diego G. D. Christofaro
- Departament of Physical Education, São Paulo State University - UNESP, Presidente Prudente, Brazil
| | - Raphael M. Ritti-Dias
- Graduated Program in Rehabilitation Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, Brazil
| | - William R. Tebar
- Centro de Pesquisa Clínica e Epidemiológica, Hospital Universitário, Universidade de São Paulo – USP, Sao Paulo, Brazil
| | - André O. Werneck
- Faculdade de Saúde Pública, Universidade de São Paulo – USP, Sao Paulo, Brazil
| | | | | | - Raul D. Santos
- Hospital Israelita Albert Einstein, Sao Paulo, Brazil
- Heart Institute (InCor) University of São Paulo Medical School Hospital, Sao Paulo, Brazil
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Chen C, Lu Z, Wang X, Zhang J, Zhang D, Li S. The chain mediating role of C-reactive protein and triglyceride-glucose index between lung function and cognitive function in a systemic low-grade inflammation state. J Psychiatr Res 2022; 155:380-386. [PMID: 36182767 DOI: 10.1016/j.jpsychires.2022.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/22/2022] [Accepted: 09/12/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVES This study examined whether serum C-reactive protein (CRP) level and triglyceride-glucose index (TyG) explained the association between lung function and subsequent cognitive function in middle-aged and older adults with a systemic low-grade inflammation state. DESIGN A prospective cohort study. SETTING AND PARTICIPANTS The sample consisted of 1, 742 participants recruited from the English Longitudinal Study of Ageing (ELSA). METHODS Lung function and covariates were measured at baseline (wave 4, 2008/09). Serum CRP level and TyG were examined at a four-year follow-up (wave 6, 2012/13). Cognitive function was assessed at eight years post baseline (wave 8, 2016/17) in the main interview. The mediation was initially assessed using multivariate linear regression models. Indirect effects were assessed using the structural equation modeling and the bootstrap method. RESULTS We observed that serum CRP level and TyG significantly mediated the relationships between lung function (forced expiratory volume in 1s (FEV1) and forced vital capacity (FVC)) and cognitive function (immediate recall and delay recall). Moreover, serum CRP level mediated the association between lung function (FEV1 and FVC) and TyG. Our finding also suggested that FEV1 (1.19% mediated) and FVC (1.72% mediated) might influence cognitive function partly through the chain mediating role of both serum CRP level and TyG. CONCLUSIONS AND IMPLICATIONS The present study revealed that serum CRP level and TyG play a chain mediating role in the relationship between lung function at baseline and subsequent cognitive impairment in a nationally representative cohort of middle-aged and older adults with a systemic low-grade inflammation state.
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Affiliation(s)
- Chen Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, China
| | - Zhonghai Lu
- Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, China
| | - Xueyan Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, China
| | - Jiesong Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, China
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, China
| | - Suyun Li
- Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, China.
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Respiratory Symptom Screening in Prevention. Chest 2022; 161:876-877. [DOI: 10.1016/j.chest.2021.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 11/20/2022] Open
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Hsu YE, Chen SC, Geng JH, Wu DW, Wu PY, Huang JC. Obesity-Related Indices Are Associated with Longitudinal Changes in Lung Function: A Large Taiwanese Population Follow-Up Study. Nutrients 2021; 13:nu13114055. [PMID: 34836307 PMCID: PMC8624262 DOI: 10.3390/nu13114055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/05/2021] [Accepted: 11/11/2021] [Indexed: 12/14/2022] Open
Abstract
The global pandemic of obesity and the increasing incidence of chronic respiratory diseases are growing health concerns. The association between obesity and pulmonary function is uncertain. Therefore, this study aimed to explore associations between changes in lung function and obesity-related indices in a large longitudinal study. A total of 9059 participants with no personal histories of asthma, smoking, bronchitis, or emphysema were enrolled from the Taiwan Biobank and followed for 4 years. Lung function was assessed using spirometry measurements including forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC). Changes in FEV1/FVC (∆FEV1/FVC) between baseline and follow-up were calculated. The following obesity-related indices were studied: lipid accumulation product (LAP), body roundness index (BRI), conicity index (CI), body adiposity index (BAI), abdominal volume index (AVI), body mass index (BMI), waist–hip ratio (WHR), and waist-to-height ratio (WHtR). In multivariable analysis, the subjects with high BMI (p < 0.001), WHR (p < 0.001), WHtR (p < 0.001), LAP (p = 0.002), BRI (p < 0.001), CI (p = 0.005), BAI (p < 0.001), and AVI (p < 0.001) were significantly associated with a high baseline FEV1/FVC. After 4 years of follow-up, the subjects with high BMI (p < 0.001), WHR (p < 0.001), WHtR (p < 0.001), LAP (p = 0.001), BRI (p < 0.001), CI (p = 0.002), BAI (p < 0.001), and AVI (p < 0.001) were significantly associated with a low △FEV1/FVC. High obesity-related index values were associated with better baseline lung function and a rapid decrease in lung function at follow-up.
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Affiliation(s)
- Yu-En Hsu
- Department of Post Baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Szu-Chia Chen
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan; (S.-C.C.); (D.-W.W.); (P.-Y.W.)
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jiun-Hung Geng
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan;
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Da-Wei Wu
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan; (S.-C.C.); (D.-W.W.); (P.-Y.W.)
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Pei-Yu Wu
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan; (S.-C.C.); (D.-W.W.); (P.-Y.W.)
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jiun-Chi Huang
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan; (S.-C.C.); (D.-W.W.); (P.-Y.W.)
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: ; Tel.: +886-7-803-6783-3440
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Ifedayo AE, Ziden AA, Ismail AB. Mediating effect of behavioural intention on podcast acceptance. EDUCATION AND INFORMATION TECHNOLOGIES 2020; 26:2767-2794. [PMID: 33223925 PMCID: PMC7665093 DOI: 10.1007/s10639-020-10385-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
This research contributes to knowledge in mediating effect of lecturers' behavioural intention towards the acceptance of podcasts technology in universities. A cross-sectional quantitative research design was involved in this study. Also, a total of eight hundred and twenty-nine (829) lecturers participated in this research from three different south-west Nigeria Federal universities. The research instrument was titled lecturer's acceptance questionnaire (LAQ) with a calculated Cronbach's alpha of .919, which confirmed the instrument validity. The gathered data was analysed by using both descriptive and inferential statistics. The formulated hypothesis was tested at .05 level of significance. The result from descriptive analysis of data suggested that behavioural intention was at a low level among lecturers and the results of hypothesis testing revealed the effect of behavioural intention as partial mediator of podcast acceptance. Based on these findings relevant conclusions and recommendations were suggested in this research.
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Affiliation(s)
- Adu Emmanuel Ifedayo
- School of Educational Studies, Universiti Sains Malaysia, P.M.B 11800, Gelugor, Penang Malaysia
| | - Azidah Abu Ziden
- School of Educational Studies, Universiti Sains Malaysia, P.M.B 11800, Gelugor, Penang Malaysia
| | - Aziah Binti Ismail
- School of Educational Studies, Universiti Sains Malaysia, P.M.B 11800, Gelugor, Penang Malaysia
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Bédard A, Carsin AE, Fuertes E, Accordini S, Dharmage SC, Garcia-Larsen V, Heinrich J, Janson C, Johannessen A, Leynaert B, Sánchez-Ramos JL, Peralta GP, Pin I, Squillacioti G, Weyler J, Jarvis D, Garcia-Aymerich J. Physical activity and lung function-Cause or consequence? PLoS One 2020; 15:e0237769. [PMID: 32817718 PMCID: PMC7446897 DOI: 10.1371/journal.pone.0237769] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 08/03/2020] [Indexed: 12/17/2022] Open
Abstract
Concerns exist that the positive association of physical activity with better lung function, which has been suggested in previous longitudinal studies in smokers, is due to reverse causation. To investigate this, we applied structural equation modeling (SEM), an exploratory approach, and marginal structural modeling (MSM), an approach from the causal inference framework that corrects for reverse causation and time-dependent confounding and estimates causal effects, on data from participants in the European Community Respiratory Health Survey (ECRHS, a multicentre European cohort study initiated in 1991–1993 with ECRHS I, and with two follow-ups: ECRHS II in 1999–2003, and ECRHS III in 2010–2014). 753 subjects who reported current smoking at ECRHS II, with repeated data on lung function at ECRHS I, II and III, physical activity at ECRHS II and III, and potential confounders at ECRHS I and II, were included in the analyses. SEM showed positive associations between physical activity and lung function in both directions. MSM suggested a protective causal effect of physical activity on lung function (overall difference in mean β (95% CI), comparing active versus non-active individuals: 58 mL (21–95) for forced expiratory volume in one second and 83 mL (36–130) for forced vital capacity). Our results suggest bi-directional causation and support a true protective effect of physical activity on lung function in smokers, after accounting for reverse causation and time-dependent confounding.
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Affiliation(s)
- Annabelle Bédard
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- * E-mail:
| | - Anne-Elie Carsin
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
| | - Elaine Fuertes
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Simone Accordini
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Shyamali C. Dharmage
- Allergy and Lung Health Unit, School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Vanessa Garcia-Larsen
- Program in Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Joachim Heinrich
- Allergy and Lung Health Unit, School of Population and Global Health, University of Melbourne, Melbourne, Australia
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital Munich, Ludwig Maximilians University Munich, Munich, Germany
| | - Christer Janson
- Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Ane Johannessen
- Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Bénédicte Leynaert
- Inserm, UMR 1152, Pathophysiology and Epidemiology of Respiratory Diseases, Paris, France
- UMR 1152, University Paris Diderot, Paris, France
| | | | - Gabriela P. Peralta
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
| | - Isabelle Pin
- CHU Grenoble Alpes, Department of Pediatrics, Grenoble, France
- INSERM, Institut for Advanced Biosciences, Grenoble, France
- University Grenoble Alpes, Grenoble, France
| | - Giulia Squillacioti
- Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Joost Weyler
- Department of Epidemiology and Social Medicine, University of Antwerp, Antwerp, Belgium
| | - Deborah Jarvis
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- MRC-PHE Centre for Environment and Health, Imperial College London, London, United Kingdom
| | - Judith Garcia-Aymerich
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
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