Lung Function and Incidence of Chronic Obstructive Pulmonary Disease after Improved Cooking Fuels and Kitchen Ventilation: A 9-Year Prospective Cohort Study

Zhou, Yumin; Zou, Yimin; Li, Xiaochen; Chen, Shuyun; Zhao, Zhenzhen; He, Fang; Zou, Weifeng; Luo, Qiaojie; Li, Wenxi; Pan, Yiling; Deng, Xiaoliang; Wang, Xiaoping; Qiu, Rong; Liu, Shiliang; Zheng, Jun; Zhong, Nanshan; Ran, Pixin

doi:10.1371/journal.pmed.1001621

Cited by 162 publications

(128 citation statements)

References 23 publications

(31 reference statements)

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“…Systemic and pulmonary inflammation is similar to cigarette smoke-induced disease [75,76], with less emphysema [77] and less rapid FEV1 decline [78]. Patients decline more slowly if the biomass exposure is reduced [28], but is not clear whether inhaled therapies used for "usual COPD" are of similar efficacy. The presence of BHR and overlap with asthma suggests that ICS might be an effective strategy, though no clinical trials have been reported yet.…”

Section: Subgroups With Implications For Treatmentmentioning

confidence: 99%

Clinically relevant subgroups in COPD and asthma

Turner

Tamási

Schleich³

et al. 2015

Eur Respir Rev

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As knowledge of airways disease has grown, it has become apparent that neither chronic obstructive pulmonary disease (COPD) nor asthma is a simple, easily defined disease. In the past, treatment options for both diseases were limited; thus, there was less need to define subgroups. As treatment options have grown, so has our need to predict who will respond to new drugs. To date, identifying subgroups has been largely reported by detailed clinical characterisation or differences in pathobiology. These subgroups are commonly called "phenotypes"; however, the problem of defining what constitutes a phenotype, whether this should include comorbid diseases and how to handle changes over time has led to the term being used loosely.In this review, we describe subgroups of COPD and asthma patients whose clinical characteristics we believe have therapeutic or major prognostic implications specific to the lung, and whether these subgroups are constant over time. Finally, we will discuss whether the subgroups we describe are common to both asthma and COPD, and give some examples of how treatment might be tailored in patients where the subgroup is clear, but the label of asthma or COPD is not. @ERSpublications Summary of subgroups of airways disease that can be found in COPD and asthma, and their management

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Section: Subgroups With Implications For Treatmentmentioning

confidence: 99%

Clinically relevant subgroups in COPD and asthma

Turner

Tamási

Schleich³

et al. 2015

Eur Respir Rev

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“…More recently, in a prospective cohort of adults in southern China, switching to cleaner fuels (biogas) and/or improving ventilation of biomass smoke with the addition of a chimney or exhaust fan was associated with a slower decline in FEV 1 and fewer new cases of COPD over a 9-year period. 13 Th ese results are encouraging but need to be replicated in a study with an experimental design.…”

mentioning

confidence: 96%

Lung Function in Rural Guatemalan Women Before and After a Chimney Stove Intervention to Reduce Wood Smoke Exposure

Guarnieri

Díaz

Pope

et al. 2015

Chest

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“…Zhou et al also showed that there is a direct correlation between the extent of decreased pulmonary function and the time of exposure to biomaterial smoke. They reported this conclusion in a study on 966 patients with COPD and a positive history of exposure to biomaterial smoke [38]. Various mechanisms have been suggested to explain differences between respiratory systems in patients with previous exposure of biomaterial or cigarette smoke; although the composition of any type of smoke may be similar-or at least share common features-on the basis of the origin of biomaterial smoke, the combustive efficacy and the percentage of ambient humidity the effect on the respiratory system varies [26].…”

Section: Discussionmentioning

confidence: 81%

Investigating Types and Frequency of Vascular Findings in Pulmonary CT Angiography of Baker females with Pulmonary Complaints in Comparison with Chronic Obstructive Pulmonary Disease

Javadrashid,¹,

Arablou²,

Mostafaei³

2017

ajlsr

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Still in many places all over the world including East Azerbaijan Province and particularly in rural areas, women use traditional methods such as using oven and organic fuels (wood, turd) to bake bread. It has been shown that the smoke organic fuels in places with inadequate ventilation for a long term may cause a range of problems in the respiratory system. CT angiography is a good and less invasive method in evaluating pulmonary vascular system. This study tried to compare CT angiography findings in the lungs of bread-cooking women with respiratory complaints and females with COPD and no history of bread cooking. In this casecontrol setting, 36 patients in the bread-cooking group (case) and 36 patients with COPD in the control group underwent lung CT angiography. Pathologic findings including dilation of the bronchial arteries, hyper vascularization of the bronchial arteries, changes in pulmonary trunk diameter, silent embolism and any other abnormal changes were documented and compared between the two groups. The mean duration of bread-cooking was 4.78±3.17 years (2-12). Abnormal vascular findings in lung CT angiographies of the bread-cooking women with respiratory complaints were dilation of the bronchial arteries (22.2%), hyper vascularization of the bronchial arteries (8.3%), silent embolism (11.1%) and parenchymal emphysematous changes (13.9%). They were documented in the COPD group in 36.1%, 27.8%, 27.8% and 3.33% of the patients, respectively. Accordingly, the frequency of hyper vascularization of the bronchial arteries and parenchymal emphysematous changes was significantly higher in the COPD group than in the bread-cooking women. In contrast, the mean diameter of the pulmonary trunk was significantly higher in the bread-cooking group (3.32 vs. 3.17 cm). Abnormal findings in lung CT angiography of bread-cooking women with respiratory symptoms are frequent and in some cases, they are different from findings in the lungs of women with COPD and no previous history of breadcooking.

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Lung Function and Incidence of Chronic Obstructive Pulmonary Disease after Improved Cooking Fuels and Kitchen Ventilation: A 9-Year Prospective Cohort Study

Abstract: Pixin Ran, Nanshan Zhong, and colleagues report that cleaner cooking fuels and improved ventilation were associated with better lung function and reduced COPD among a cohort of villagers in Southern China. Please see later in the article for the Editors' Summary

Cited by 162 publications

References 23 publications

Clinically relevant subgroups in COPD and asthma

Clinically relevant subgroups in COPD and asthma

Lung Function in Rural Guatemalan Women Before and After a Chimney Stove Intervention to Reduce Wood Smoke Exposure

Investigating Types and Frequency of Vascular Findings in Pulmonary CT Angiography of Baker females with Pulmonary Complaints in Comparison with Chronic Obstructive Pulmonary Disease

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