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      Prevalence of osteoporosis and osteopenia in stable patients of chronic obstructive pulmonary disease in Sub-Himalayan region of Himachal Pradesh, India

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          Abstract

          Background:

          Chronic obstructive pulmonary disease (COPD) is a lifestyle-related chronic inflammatory pulmonary disease and a major cause of morbidity and mortality globally. Osteoporosis and osteopenia are common observations in COPD and degree of the loss of bone mineral density (BMD) has been found to be proportionate to the severity of the disease.

          Objectives:

          Our objective was to study the prevalence of osteoporosis and osteopenia in stable COPD patients in Indian Sub-Himalayan population.

          Materials and Methods:

          This study was performed on 84 patients of COPD attending as outpatient in the Pulmonary Medicine Department after application of inclusion and exclusion criteria. A control group of 60 healthy controls was selected for comparison with COPD group. Spirometry was done on patients to stage the severity of COPD according to global initiative for chronic obstructive lung disease criteria. Dual-energy X-ray absorptiometry scan of the lumbar spine was done using bone densitometer to determine the severity of reduced BMD. The patients were categorized according to the World Health Organization criterion for definition of reduced BMD.

          Results:

          In the present study, a total of 45.2% patients had osteoporosis, 41.6% patients had osteopenia while the rest 13% patients had normal bone density in the COPD group. The prevalence of low bone density was about 4 times higher in COPD group as compared to control group. There were 15.48 times higher chances of low BMD in COPD patients as compared to healthy controls.

          Conclusions:

          Reduced BMD is a common comorbid entity in COPD patients which leads to increase in bone fragility and susceptibility to fracture. It is recommended that all the patients with COPD should be screened for osteoporosis to initiate the treatment for the disorder before they develop fractures.

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          Global and regional estimates of COPD prevalence: Systematic review and meta–analysis

          Davies Adeloye, Stephen Chua, Chinwei Lee … (2015)
          Background The burden of chronic obstructive pulmonary disease (COPD) across many world regions is high. We aim to estimate COPD prevalence and number of disease cases for the years 1990 and 2010 across world regions based on the best available evidence in publicly accessible scientific databases. Methods We conducted a systematic search of Medline, EMBASE and Global Health for original, population–based studies providing spirometry–based prevalence rates of COPD across the world from January 1990 to December 2014. Random effects meta–analysis was conducted on extracted crude prevalence rates of COPD, with overall summaries of the meta–estimates (and confidence intervals) reported separately for World Health Organization (WHO) regions, the World Bank's income categories and settings (urban and rural). We developed a meta–regression epidemiological model that we used to estimate the prevalence of COPD in people aged 30 years or more. Findings Our search returned 37 472 publications. A total of 123 studies based on a spirometry–defined prevalence were retained for the review. From the meta–regression epidemiological model, we estimated about 227.3 million COPD cases in the year 1990 among people aged 30 years or more, corresponding to a global prevalence of 10.7% (95% confidence interval (CI) 7.3%–14.0%) in this age group. The number of COPD cases increased to 384 million in 2010, with a global prevalence of 11.7% (8.4%–15.0%). This increase of 68.9% was mainly driven by global demographic changes. Across WHO regions, the highest prevalence was estimated in the Americas (13.3% in 1990 and 15.2% in 2010), and the lowest in South East Asia (7.9% in 1990 and 9.7% in 2010). The percentage increase in COPD cases between 1990 and 2010 was the highest in the Eastern Mediterranean region (118.7%), followed by the African region (102.1%), while the European region recorded the lowest increase (22.5%). In 1990, we estimated about 120.9 million COPD cases among urban dwellers (prevalence of 13.2%) and 106.3 million cases among rural dwellers (prevalence of 8.8%). In 2010, there were more than 230 million COPD cases among urban dwellers (prevalence of 13.6%) and 153.7 million among rural dwellers (prevalence of 9.7%). The overall prevalence in men aged 30 years or more was 14.3% (95% CI 13.3%–15.3%) compared to 7.6% (95% CI 7.0%–8.2%) in women. Conclusions Our findings suggest a high and growing prevalence of COPD, both globally and regionally. There is a paucity of studies in Africa, South East Asia and the Eastern Mediterranean region. There is a need for governments, policy makers and international organizations to consider strengthening collaborations to address COPD globally.
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            Current status of research on osteoporosis in COPD: a systematic review.

            E Wouters, R Lunde, S M Kolk … (2009)
            Patients with chronic obstructive pulmonary disease (COPD) are at increased risk of osteoporosis. However, the prevalence, correlates and effectiveness of treatment of osteoporosis in COPD patients remain unclear. We performed a systematic review of the literature to answer three questions. 1) What is the prevalence of osteoporosis in COPD? 2) What are identified correlates of osteoporosis in COPD? 3) What are the effects of treatment of osteoporosis in COPD? A computerised literature search in MEDLINE/PubMed and the Cochrane database was carried out. In addition, reference lists were searched by hand and authors were contacted if necessary. The prevalence of osteoporosis and osteopenia varied 9-69% and 27-67%, respectively. Prevalence of osteoporosis was generally higher than in healthy subjects and some other chronic lung diseases. Correlates of osteoporosis in COPD are mainly measures of body composition, disease severity and the use of corticosteroids, although causality has not been proven. Effects of treatment of osteoporosis have not been investigated in samples consisting of COPD patients only. Longitudinal follow-up to assess determinants of osteoporosis in COPD and randomised placebo-controlled trials on the effects of treatment of osteoporosis in patients with COPD only are warranted.
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              Prevalence and progression of osteoporosis in patients with COPD: results from the TOwards a Revolution in COPD Health study.

              Gary Ferguson, Peter M.A. Calverley, Julie Anderson … (2009)
              Osteoporosis is common in patients with COPD, but its prevalence and progression are not well characterized. Concerns have been raised over the possible deleterious effect of long-term therapy with inhaled corticosteroids (ICSs) on bone density in this population. Here, we investigated the long-term effects of therapy with fluticasone propionate (FP) alone, salmeterol (SAL) alone, and a SAL/FP combination (SFC) on bone mineral density (BMD) and bone fractures in patients with moderate-to-severe COPD in the TOwards a Revolution in COPD Health (TORCH) study. A randomized, double-blind, parallel-group, placebo-controlled study conducted at 88 US centers involving 658 patients (a subset of 6,184 international subjects in TORCH). Therapy with placebo, SAL (50 microg), FP (500 microg), or SFC (SAL 50 microg/FP 500 microg) twice daily was administered for 3 years. Baseline and yearly measurements of BMD at the hip and lumbar spine were performed. The incidence of traumatic and nontraumatic bone fractures was recorded. At baseline, 18% of men and 30% of women had osteoporosis, and 42% of men and 41% of women had osteopenia based on BMD assessments. Forty-three percent of subjects completed all testing. The changes in BMD at the hip and lumbar spine over 3 years were small. No significant differences were observed between treatment arms (adjusted mean percent change from baseline at hip was -3.1% for placebo, -1.7% for SAL, -2.9% for FP, and -3.2% for SFC therapy, respectively; while, the corresponding changes for the lumbar spine were 0, 1.5%, -0.3%, and -0.3% for placebo, respectively, SAL, FP, and SFC therapy). The incidence of fractures was low and was similar for all treatments (5.1% to 6.3%). Osteoporosis is highly prevalent in patients with COPD, irrespective of gender. In the TORCH study, no significant effect on BMD was detected for ICS therapy compared with placebo. ClinicalTrials.gov Identifier: NTC00268216.
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                Author and article information

                Journal
                Journal ID (nlm-ta): J Family Med Prim Care
                Journal ID (iso-abbrev): J Family Med Prim Care
                Journal ID (publisher-id): JFMPC
                Title: Journal of Family Medicine and Primary Care
                Publisher: Medknow Publications & Media Pvt Ltd (India )
                ISSN (Print): 2249-4863
                ISSN (Electronic): 2278-7135
                Publication date (Print): Jul-Sep 2017
                Volume: 6
                Issue: 3
                Pages: 595-599
                Affiliations
                [1 ] Department of Radiodiagnosis, IGMC, Shimla, Himachal Pradesh, India
                [2 ] Department of Pulmonary Medicine, IGMC, Shimla, Himachal Pradesh, India
                Author notes
                Address for correspondence: Dr. Rohit Bhoil, Department of Radiodiagnosis, IGMC, Shimla - 171 001, Himachal Pradesh, India. E-mail: rohitbhoil@ 123456gmail.com
                Article
                Publisher ID: JFMPC-6-595
                DOI: 10.4103/2249-4863.222013
                PMC ID: 5787962
                SO-VID: e84a9a0f-be17-4774-9c69-46142c4303e7
                Copyright © Copyright: © 2017 Journal of Family Medicine and Primary Care
                License:

                This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

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                Subject: Original Article

                Keywords: bone mineral density,chronic obstructive pulmonary disease,dual-energy x-ray absorptiometry,fracture,global initiative for chronic obstructive lung disease criteria,spirometry
                Data availability:
                Keywords: bone mineral density, chronic obstructive pulmonary disease, dual-energy x-ray absorptiometry, fracture, global initiative for chronic obstructive lung disease criteria, spirometry

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