Annual Changes of Lung Function in Retired Workers Exposed to Inorganic Dusts

Lee, Joung Oh; Choi, Byung Soon; Lee, Jong Seong; Jeong, Jee Yeon; Lee, Hong-Ki

doi:10.4046/trd.2011.71.5.341

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…In a recent study with subjects who exposed to inorganic dusts in Korea19, FEV 1 was significantly reduced as the subjects were older, and annual pulmonary function tended to decrease more in the pneumoconiosis group compared to that of the normal group. In another study20 the pulmonary function was significantly lower in the pneumoconiosis group than that of the normal group.…”

Section: Discussionmentioning

confidence: 92%

Relation of Pulmonary Function Impairment and Coronary Artery Calcification by Multi-detector Computed Tomography in Group Exposed to Inorganic Dusts

2013

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BackgroundThe purpose of this study was to evaluate the relationship of pulmonary function impairment (PFI) and coronary artery calcification (CAC) by multi-detector computed tomography (MDCT), and the effect of pneumoconiosis on CAC or PFI.MethodsSeventy-six subjects exposed to inorganic dusts underwent coronary artery calcium scoring by MDCT, spirometry, laboratory tests, and a standardized questionnaire. CAC was quantified using a commercial software (Rapidia ver. 2.8), and all the subjects were divided into two categories according to total calcium scores (TCSs), either the non-calcified (<1) or the calcified (≥1) group. Obstructive pulmonary function impairment (OPFI) was defined as forced expiratory volume in one second/forced vital capacity (FEV1/FVC, %)<70, and as FEV1/FVC (%)≥70 and FVC<80 for restrictive pulmonary function impairment (RPFI) by spirometry. All subjects were classified as either the case (profusion≥1/0) or the control (profusion≤0/1) group by pneumoconiosis findings on simple digital radiograph.ResultsOf the 76 subjects, 35 subjects (46.1%) had a CAC. Age and hypertension were different significantly between the non-calcified and the calcified group (p<0.05). Subjects with pneumoconiosis were more frequent in the calcified group than those in the non-calcified group (p=0.099). FEV1/FVC (%) was significantly correlated with TCSs (r=-0.316, p=0.005). Subjects with OPFI tended to increase significantly with increasing of TCS (4.82, p=0.028), but not significantly in RPFI (2.18, p=0.140). Subjects with OPFI were significantly increased in the case group compared to those in the control group.ConclusionCAC is significantly correlated with OPFI, and CAC and OPFI may be affected by pneumoconiosis findings.

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Section: Discussionmentioning

confidence: 92%

Relation of Pulmonary Function Impairment and Coronary Artery Calcification by Multi-detector Computed Tomography in Group Exposed to Inorganic Dusts

2013

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Effects of Smoking Status on Chronic Obstructive Pulmonary Disease Prevalence in Males 40 years and Older: Findings from the Korean National Health and Nutrition Examination Survey

Jung

2014

Korean J Health Promot

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Background: This is a study of the prevalence of chronic obstructive pulmonary disease (COPD), which shows high mortality worldwide, and the effects of smoking on COPD by using data from the Korea National Health and Nutrition Examination Survey V. Methods: FEV1/FEV6<0.73 was used as a diagnostic criterion of COPD. Frequency analysis for prevalence, descriptive statistics for general characteristics and ventilation rate according to age-specifications, and complex sample logistic regression analysis for the effect of smoking on COPD prevalence were used. IBM SPSS Statistics 21 Standard, Complex Samples for Medical Science(Windows) was used for data analysis(α =0.05). Results: Prevalence of COPD was 11.6±0.5% of Koreans in their forties or over, and 17.5±0.8% in males, and 6.2±0.5% in females. There was significant increase of COPD prevalence with age increment. Before adjusting for age and smoking index(SI), the COPD possibilities of past and current-smokers compared with non-smoking males were (odds ratio [OR] 2.112 [95% confidence interval [CI] 1.551-2.875]) and (OR 1.834 [95% CI 1.319-2.551]) respectively. After adjustments with age and SI, the COPD possibility of current-smoking was 2.099 (1.382-3.188) times higher and for past-smoking was 1.463 (1.012-2.115) times higher than non-smoking. The P-value of each group was significant. The regression coefficients (B) of current-smoking and past-smoking were 0.741 and 0.380 respectively. The prevalence of COPD increased 1.102 (1.090-1.115) times for every 1 year of age increase, and 1.012 (1.007-1.018) times for every 1 SI increase (P<0.001). Conclusions: After adjusting for age and SI, the prevalence of COPD in smokers was higher than non-smokers. And current-smoking had a higher OR and higher B than past-smoking.

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Annual Changes of Lung Function in Retired Workers Exposed to Inorganic Dusts

Cited by 2 publications

References 24 publications

Relation of Pulmonary Function Impairment and Coronary Artery Calcification by Multi-detector Computed Tomography in Group Exposed to Inorganic Dusts

Relation of Pulmonary Function Impairment and Coronary Artery Calcification by Multi-detector Computed Tomography in Group Exposed to Inorganic Dusts

Effects of Smoking Status on Chronic Obstructive Pulmonary Disease Prevalence in Males 40 years and Older: Findings from the Korean National Health and Nutrition Examination Survey

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