ABSTRACT
The increasingly female face of chronic obstructive pulmonary disease (COPD) prevalence among women has equalled that of men since 2008, due in part to increased tobacco use among women worldwide and exposure to biomass fuels. This finding is supported by a number of characteristics. There is evidence of susceptibility to smoking and other airborne contaminants, along with epidemiological and phenotypic manifestations. COPD has thus become the leading cause of death in women in the USA. The clinical presentation is characterised by increasingly pronounced dyspnoea with a marked tendency towards anxiety and depression, undernutrition, nonsmall cell lung cancer (especially adenocarcinoma) and osteoporosis. Quality of life is also more significantly impacted. The theories advanced to explain these differences involve the role played by oestrogens, impaired gas exchange in the lungs and smoking habits. While these differences require appropriate therapeutic responses (smoking cessation, pulmonary rehabilitation, long-term oxygen therapy), barriers to the treatment of women with COPD include greater under-diagnosis than in men, fewer spirometry tests and medical consultations. Faced with this serious public health problem, we need to update and adapt our knowledge to the epidemiological changes.
Subject(s)
Health Status Disparities , Healthcare Disparities , Lung/physiopathology , Pulmonary Disease, Chronic Obstructive , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Cost of Illness , Female , Humans , Male , Middle Aged , Phenotype , Prevalence , Prognosis , Pulmonary Disease, Chronic Obstructive/diagnosis , Pulmonary Disease, Chronic Obstructive/epidemiology , Pulmonary Disease, Chronic Obstructive/physiopathology , Pulmonary Disease, Chronic Obstructive/therapy , Quality of Life , Risk Assessment , Risk Factors , Sex Distribution , Sex Factors , Smoking/adverse effects , Smoking/epidemiology , Young AdultABSTRACT
There are conflicting data regarding the magnitude and determinants of chronic obstructive pulmonary disease (COPD) risk in farmers.In a cross-sectional study of 917 nonfarming working controls and 3787 farmers aged 40-75 years, we assessed respiratory symptoms, tobacco exposure, job history (without direct exposure measurement) and lung function. COPD was defined by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) criterion (post-bronchodilator forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) <0.70) and by the Quanjer reference equation (post-bronchodilator FEV1/FVC Subject(s)
Agricultural Workers' Diseases/epidemiology
, Animal Husbandry/statistics & numerical data
, Crop Production/statistics & numerical data
, Farmers/statistics & numerical data
, Occupational Exposure/statistics & numerical data
, Pulmonary Disease, Chronic Obstructive/epidemiology
, Smoking/epidemiology
, Adult
, Aged
, Agricultural Workers' Diseases/physiopathology
, Animals
, Case-Control Studies
, Cattle
, Cross-Sectional Studies
, Female
, Forced Expiratory Volume
, France/epidemiology
, Humans
, Male
, Middle Aged
, Poultry
, Prevalence
, Pulmonary Disease, Chronic Obstructive/physiopathology
, Risk Factors
, Swine
, Vital Capacity
ABSTRACT
BACKGROUND: Bronchogenic carcinoma (BC) is a worldwide health public problem with a parallel but delayed development to smoking. The prognosis of BC in young patients is poorly known mainly because of few studies that have looked at this group of patients. The hypothesis of our study is that 'young' patients with BC have a better prognosis than others. METHODS: We conducted a retrospective epidemiologic study of all patients aged 45 and under (n=73) followed for BC between 2002 and 2007 in two hospitals in the central region in France, compared with patients over 45 years random (n=73). We evaluated the clinical characteristics (sex, smoking habits, WHO status, clinical presentation, histology, TNM stage), the management and prognosis of these patients. RESULTS: The median survival of patients aged 45 and under was 13.4 months against 8.9 months for patients over 45 years. In multivariate analysis, age is not an independent prognostic factor (P=0.41) in contrast to the WHO status (P=0.002) and initial TNM stage (P<0.001). There was no significant difference for other clinical characteristics between the two patient populations. CONCLUSION: In our study, the better prognosis of the "young" patient group is not directly related to age but in good condition and lower TNM stage of these patients.