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Al Wachami N, Guennouni M, Iderdar Y, Boumendil K, Arraji M, Mourajid Y, Bouchachi FZ, Barkaoui M, Louerdi ML, Hilali A, Chahboune M. Estimating the global prevalence of chronic obstructive pulmonary disease (COPD): a systematic review and meta-analysis. BMC Public Health 2024; 24:297. [PMID: 38273271 PMCID: PMC10811845 DOI: 10.1186/s12889-024-17686-9] [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: 04/07/2023] [Accepted: 01/05/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a major public health problem. The present study aims to provide a global and regional estimate of the prevalence of COPD based on spirometry according to the two most widely used diagnostic criteria of COPD: fixed ratio (FR) and lower limit of normal (LLN). METHODS We conducted a systematic review of the literature according to PRISMA guidelines. MEDLINE, Web of Sciences, and Scopus databases were searched to identify studies on the spirometry-based prevalence of COPD in individuals aged 40 years and older. The meta-analysis was performed using MedCalc 19 software. RESULTS In total, 42 of the 3393 studies reviewed were eligible for inclusion. The overall prevalence of COPD in people aged 40 years and older was 12.64% (95% CI 10.75%-14.65%) and 7.38% (95% CI 5.47% - 9.55%) based on FR and LLN criteria, respectively. By gender, men had a higher prevalence of COPD compared to women (15.47%; 95% CI 12.22%-19.02% for men versus 8.79%; 95% CI 6.94%-10.82% for women). Using the LLN criteria, the prevalence of COPD in both sexes was almost identical (8.67%; 95% CI 8.44%- 8.90% for men and 8.00%; 95% CI 6.42% - 9.73% for women). We reported a high prevalence of COPD among smokers and the elderly by both definitions of airway obstruction. Regional prevalence estimates using the FR definition indicate that the highest COPD prevalence was recorded in the Americas and the lowest was recorded in the Eastern Mediterranean region. Using the LLN definition, the highest prevalence was recorded in the Southeast Asian region and the lowest prevalence was recorded in the American region. The most common COPD stage was stage II, with a prevalence of 50.46%. The results indicate a huge lack of prevalence data in the African and Eastern Mediterranean region. The results were given using a random-effect model due to the high heterogeneity between studies. CONCLUSION Results show that the prevalence of COPD differs according to the diagnostic criteria used. In addition, management and prevention strategies targeting risk factors for COPD are certainly needed to reduce the global burden of this chronic respiratory disease.
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Affiliation(s)
- Nadia Al Wachami
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco.
| | - Morad Guennouni
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
- Higher School of Education and Training, Chouaîb Doukkali University of El Jadida, El Jadida, Morocco
| | - Younes Iderdar
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | - Karima Boumendil
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | - Maryem Arraji
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | - Yassmine Mourajid
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | - Fatima Zahra Bouchachi
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | - Mohamed Barkaoui
- Higher Institute of Sport, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | | | - Abderraouf Hilali
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
| | - Mohamed Chahboune
- Higher Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Hassan First University of Settat, 26000, Settat, Morocco
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Tang Y, Zhang L, Zhu S, Shen M, Cheng M, Peng F. Associations between different body mass index and lung function impairment in Chinese people aged over 40 years: a multicenter cross-sectional study. BMC Pulm Med 2024; 24:30. [PMID: 38212744 PMCID: PMC10785338 DOI: 10.1186/s12890-024-02844-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 01/03/2024] [Indexed: 01/13/2024] Open
Abstract
OBJECTIVE The aim of this study was to explore the associations between different body mass index (BMI) levels and different lung function impairment (LFI) in Chinese people aged over 40 years. METHODS We used a multi-stage stratified cluster random sampling method to investigate 3000 residents aged over 40 years from 5 areas in Hubei province of China in 2019-20. The data on questionnaire, physical measurements, and spirometry of the participants were collected. The associations of different BMI levels with different LFI were analyzed using multivariate logistic regressions after complex weighting. The spirometry data were analyzed using one-factor analysis of variance (ANOVA), and post-hoc was performed using the least significance difference (LSD)-t test. RESULTS A total of 2860 subjects were included. The prevalence (95%CI) of obstructive lung disease (OLD), restrictive lung disease (RLD), mixed lung disease (MLD), chronic obstructive pulmonary disease (COPD), COPD mild, and COPD moderate/severe/very severe were 24.1% (95% CI: 22.2-26.2), 11.6% (95% CI: 10.3-12.9), 4.0% (95% CI: 3.3-4.8), 12.6% (95% CI: 11.0-14.1), 7.2% (95% CI: 6.0-8.4), and 5.3% (95% CI: 4.3-6.4) respectively. After multivariate adjustment, the risk of OLD, COPD, and COPD mild decreased with the increment of BMI levels (both P for trend < 0.05). When compared to the normal weight group, the overweight group and obese group were at lower risk of experiencing OLD than normal group, the ORs were 0.77 (95% CI: 0.59-0.99) and 0.59 (95% CI: 0.40-0.86) respectively. The obese group was at lower risk for people with COPD mild (OR: 0.42, 95%CI: 0.21-0.85). Participants in underweight group were more likely to experience COPD and COPD moderate/severe/very severe, the ORs were 2.82 (95% CI: 1.07-7.39) and 3.89 (95% CI: 1.28-11.87) respectively. CONCLUSION Higher BMI levels were associated with an decreased risk of OLD and COPD. Obesity had a protective effect on lung function in OLD patients and COPD patients. However, there was no significant difference in RLD and MLD prevalence between different BMI groups.
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Affiliation(s)
- Yumeng Tang
- Hubei Provincial Center for Disease Control and Prevention, Hubei, China
| | - Lan Zhang
- Hubei Provincial Center for Disease Control and Prevention, Hubei, China
| | - Shuzhen Zhu
- Hubei Provincial Center for Disease Control and Prevention, Hubei, China.
| | - Miaoyan Shen
- Hubei Provincial Center for Disease Control and Prevention, Hubei, China
| | - Maowei Cheng
- Hubei Provincial Center for Disease Control and Prevention, Hubei, China
| | - Fei Peng
- Hubei Provincial Center for Disease Control and Prevention, Hubei, China.
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Vitamin C deficiency and risk of metabolic complications among adults with chronic respiratory diseases: A case-control study. Clin Nutr ESPEN 2021; 43:448-455. [PMID: 34024554 DOI: 10.1016/j.clnesp.2021.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 02/12/2021] [Accepted: 03/05/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Chronic respiratory disease (CRD) is an airflow limitation that represents a wide array of serious diseases. The aim of this study is to examine the influence of vitamin C deficiency on metabolic health-related quality in individuals with and without chronic respiratory disease in the Gaza Strip. METHODS A matched case-control study including 52 cases of CRD and 52 controls of healthy participants were matched by age, sex, body mass index (BMI) and waist circumferences (WC). The study was conducted at the Ministry of Health secondary health-care centers in Gaza strip, Palestine. The biochemical data included Protein Carbonyl (PC), high sensitivity C reactive protein (CRP), vitamin C, fasting blood glucose (FBG) and markers of the lipid profile. RESULTS By the qualitative estimation of vitamin C consumption, there was a significantly lower consumption of foods that are rich in vitamin C by CRD patients than the matched controls. By comparing the results between both groups, CRD patients had significantly lower plasma concentrations of vitamins C than the control group (18.43 ± 11.93 μgm/ml vs. 24.06 ± 11.19 μgm/ml, P = 0.025), but significantly higher in PC (3.86 ± 4.21 μgm/ml vs. 2.11 ± 0.97 μgm/ml, P = 0.005), CRP (5.98 ± 8.84 mg/l vs. 1.87 ± 1.96 mg/l, P = 0.001), and FBG (102.46 ± 15.09 mg/dl vs. 95.92 ± 10.88 mg/dl, P = 0.017). The results revealed that CRD patients had significantly lower blood oxygen saturation than the control group (96.36 ± 3.81 vs. 98.51 ± 0.75, P < 0.001), whereas no significant differences were observed regarding the lipid profiles markers. CONCLUSION CRD patients have lower levels of vitamin C in their plasma and their diet than do healthy matched people; they also have higher oxidative stress and inflammatory markers than healthy people, which are risk factors for predicting metabolic complications.
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Guo J, Yang Y, Jiang X, Guo M, Li X, Huang P, Liu Z. Differential promoter methylation and G-712A polymorphism of brain-derived neurotrophic factor in post-traumatic stress disorder patients of Li and Han populations in Hainan province. Gene 2020; 769:145192. [PMID: 33007373 DOI: 10.1016/j.gene.2020.145192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/18/2020] [Accepted: 09/24/2020] [Indexed: 12/15/2022]
Abstract
This study aimed to explore the correlations of promoter methylation and single-nucleotide polymorphism (SNP) of brain-derived neurotrophic factor (BDNF) with post-traumatic stress disorder (PTSD) in Li and Han nationalities in Hainan province. Depression- and anxiety-related questionnaires were performed for PTSD-related information collection and analysis, with 164 PTSD patients and 141 healthy controls included. Serum BDNF level was measured and the methylation of BDNF promoter was evaluated. The BDNF SNP genotyping was performed, after which the risk genotypes for PTSD were detected and analyzed using logistic regression analysis. Our study found that the PTSD incidence was different in Li and Han nationalities. Serum BDNF level in PTSD patients in Li nationality was obviously lower than that in patients in Han nationality, while the methylation of BDNF promoter was higher in patients in Li nationality. The G-712A rather than rs6265 genotypes presented significant difference between PTSD patients and healthy controls. Meanwhile, the patients in Li nationality with AG genotype at G-712A inclined to depression, and patients with GG genotype had a greater degree of PTSD. G-712A and promoter methylation of BDNF were independent risk factors for PTSD. Our study demonstrated that the differences of PTSD patients between Li and Han nationalities were attributed by SNP G-712A genotypes and promoter methylation of BDNF.
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Affiliation(s)
- Juncheng Guo
- Department of Hepatobiliary Surgery, Central South University Xiangya School of Medical Affiliated Haikou Hospital, Haikou 570208, Hainan, PR China
| | - Yijun Yang
- Department of Hepatobiliary Surgery, Central South University Xiangya School of Medical Affiliated Haikou Hospital, Haikou 570208, Hainan, PR China
| | - Xiangling Jiang
- Psychological Research Center, Hainan General Hospital, Haikou 570311, Hainan, PR China
| | - Min Guo
- Psychological Research Center, Hainan General Hospital, Haikou 570311, Hainan, PR China.
| | - Xiang Li
- The Third People's Hospital of Hubei Province, Wuhan 430032, Hubei, PR China
| | - Ping Huang
- University of South China, Hengyang 421001, Hunan, PR China
| | - Zhuo Liu
- Psychological Research Center, Hainan General Hospital, Haikou 570311, Hainan, PR China
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Lyu J, Zhang W, Li W, Wang S, Zhang J. Epidemic of chronic diseases and the related healthy lifestyle interventions in rural areas of Shandong Province, China. BMC Public Health 2020; 20:606. [PMID: 32357867 PMCID: PMC7195749 DOI: 10.1186/s12889-020-08729-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 04/17/2020] [Indexed: 12/21/2022] Open
Abstract
Background There were amounts of previous studies on chronic diseases, but few studies on the prevalence of chronic disease and the healthy lifestyle intervention in recent years, China. This study aimed to investigate the prevalence of chronic disease and the implementation of healthy lifestyle intervention in rural areas of China, so as to put forward health promotion measures to control the chronic diseases effectively. Method A large cross-sectional study (N = 2168) on community diagnosis and chronic disease was carried out in Shandong province, China. The chronic disease questionnaire and the healthy lifestyle intervention questionnaires were recruited to survey the chronic diseases and the implementation of healthy lifestyle intervention. Physical examination and biochemical indicators examination were carried out by the medical staffs and clinical laboratory. Results The current diagnosed prevalence of hypertension, diabetes, hyperlipidemia for total sample, female, male were 24.97, 24.6, 25.5, 7.60, 8.9, 6.0 and 40.27%, 45.9, 33.3% respectively in rural China. The one-year prevalence of myocardial infarction (MI) and stroke of the total sample, female, male were 1.06, 1.0, 1.1 and 2.09%, 2.2, 2.0% respectively. Healthy lifestyles interventions were not effective in rural China. The current active smoking rate and passive smoking rate were 25.68 and 42.65%. 27.86% of the population drunk alcohol within a month and 47.01% of them participated in the actions to control salt daily intake. Only 1.07 and 7.89% of the population participated in medium to high intensity physical exercises. Conclusions The prevalence of common chronic diseases were still high and the implementation of healthy lifestyle intervention were not optimal in rural area, China. Challenges to prevent chronic diseases were still severe, so medical institutes, government and individuals would put forward effective strategies to reduce the prevalence and public health promotion project should be effectively strengthened.
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Affiliation(s)
- Juncheng Lyu
- Department of Public Health, Weifang Medical University, Weifang, 261053, Shandong, China.
| | - Wen Zhang
- Department of Psychiatry, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Wei Li
- Department of Public Health, Weifang Medical University, Weifang, 261053, Shandong, China.
| | - Suzhen Wang
- Department of Public Health, Weifang Medical University, Weifang, 261053, Shandong, China
| | - Jie Zhang
- School of Public Health, Shandong University, Jinan, 250000, China.,Department of Sociology, State University of New York College at Buffalo, Buffalo, USA
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Yang M, Li Y, Meng T, Zhang L, Niu Y, Dai Y, Gao W, Bloom MS, Dong G, Zheng Y. Ultrafine CB-induced small airway obstruction in CB-exposed workers and mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 671:866-873. [PMID: 30947057 DOI: 10.1016/j.scitotenv.2019.03.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/27/2019] [Accepted: 03/03/2019] [Indexed: 06/09/2023]
Abstract
The potential threat of superfine carbon black (CB) particles to human health has received attention, but there are few human toxicological data available. The purpose of this study was to investigate the relationships between serum CC16 and SP-A with small airway related pulmonary functions in CB workers. Ninety-nine male CB packers and 115 non-CB-exposed healthy male workers were recruited. Serum CC16 and/or SP-A and pulmonary function tests were evaluated, and the relationship between them were also analyzed. To further assess pulmonary damage induced by CB particles in target organs, an animal inhalation exposure study was conducted. Male C57BL/6 mice were exposed to 15 and 30 mg/m3 CB for 6 h per day for 28 days. Levels of CC16 and SP-A were evaluated by ELISA and immunohistochemical staining (IHC). The results showed a 20% decreased in median CC16 and a 15% increase in median SP-A among CB-exposed workers. FEV1%, FEV/FVC, MMEF%, FEF25%, and FEF75% were also decreased in CB-exposed workers (P < 0.05). A significant positive correlation was observed between serum CC16 concentration and FEV1/FVC, although a negative correlation was found between serum SP-A concentration and FEV1/FVC. Serum CC16 was significantly reduced by 72% in mice with high CB-exposure, and serum SPA was 1.65x and 1.17x higher than CB-unexposed control mice in low and high CB-exposed mice, respectively. Lung CC16 and serum CC16 levels were positively correlated in mice (P = 0.024). Long-term exposure to ultrafine CB particles is associated with a decrease in CC16 and an increase in SP-A in the peripheral blood of CB-exposed workers. In conclusion, superfine CB particles have the potential to cause small airway obstruction.
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Affiliation(s)
- Mo Yang
- School of Public Health, Qingdao University, Qingdao, China; School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yanting Li
- School of Public Health, Qingdao University, Qingdao, China
| | - Tao Meng
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Liping Zhang
- Weifang Medical University, 7166 Baotong Rd, Weifang 261053, China
| | - Yong Niu
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yufei Dai
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Weimin Gao
- Department of Occupational and Environmental Health Sciences, School of Public Health, West Virginia University, 3302 Health Sciences Center, HSC South, 64 Medical Center Drive, Morgantown, WV 26506, USA
| | - Michael S Bloom
- Departments of Environmental Health Sciences and Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York 12144, USA
| | - Guanghui Dong
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, China.
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Blanco I, Diego I, Bueno P, Casas-Maldonado F, Miravitlles M. Geographic distribution of COPD prevalence in the world displayed by Geographic Information System maps. Eur Respir J 2019; 54:13993003.00610-2019. [DOI: 10.1183/13993003.00610-2019] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 04/01/2019] [Indexed: 11/05/2022]
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Ding Y, Zhou X, Wu C, Li Q, Sun J, Niu H, Lin D, Sun D, Xie P, Wu D, Zhao J, He P. Telomere length, ZNF208 genetic variants and risk of chronic obstructive pulmonary disease in the Hainan Li population. J Gene Med 2018; 20:e3061. [PMID: 30397981 DOI: 10.1002/jgm.3061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 10/16/2018] [Accepted: 10/23/2018] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a disease characterized by airflow limitation. It is not completely reversible and shows progressive development. ZNF208 rs8105767 affects telomere length, although the impact of telomere on COPD is still controversial. In the present study, we aimed to explore the impact of the ZNF208 gene polymorphism on telomere length and also that of telomere length on COPD in the Hainan Li population. METHODS In total, 270 COPD patients and 288 controls were recruited. Telomere length was measured by a quantitative real-time polymerase chain reaction. Five single nucleotide polymorphisms in ZNF208 were selected and genotyping was performed using MassARRAY software (Agena Bioscience Co. Ltd, San Diego, CA, USA). Differences in telomere length among the subjects with three genotypes of related genes were assessed using analysis of variance. Unconditional logistic regression was used to calculate odds ratios (OR) as the indicator of association between telomere length and COPD risk. RESULTS Relative telomere length in the COPD group and control group was 0.66 ± 0.47 and 1.44 ± 0.89, respectively. We grouped according to a median of 0.8284 for telomere length and observed that the risk of COPD for individuals with a telomere length less than 0.8284 is 2.92 times that for individuals with a telomere length longer than 0.8284 (OR = 2.92, 95% confidence interval = 2.01-4.25, p = 1.91 × 10-8 ). Subjects carrying the G allele of rs2188972 had a longer telomere length. Subjects carrying the carrying the CA genotype of rs8103163 and AC genotype of rs7248488 had a longer telomere length compared to wild-type individuals. CONCLUSIONS Shorter telomeres increase COPD risk and the ZNF208 polymorphism affects telomere length in COPD patients.
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Affiliation(s)
- Yipeng Ding
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Xiaoman Zhou
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Cibing Wu
- Hainan General Hospital, University of South China, Haikou, Hainan, China
| | - Quanni Li
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Juan Sun
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Huan Niu
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Daobo Lin
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Dingwei Sun
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Pingdong Xie
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Duoyi Wu
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
| | - Jie Zhao
- Hainan General Hospital, University of South China, Haikou, Hainan, China
| | - Ping He
- Department of General Practice, Hainan General Hospital, Haikou, Hainan, China
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