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Sökning: WFRF:(Purdue Mark P)

  • Resultat 51-53 av 53
  • Föregående 12345[6]
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51.
  • Muller, David C., et al. (författare)
  • Circulating high sensitivity C reactive protein concentrations and risk of lung cancer : Nested case-control study within Lung Cancer Cohort Consortium
  • 2019
  • Ingår i: BMJ (Online). - : BMJ Publishing Group. - 1756-1833. ; 364
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives To conduct a comprehensive analysis of prospectively measured circulating high sensitivity C reactive protein (hsCRP) concentration and risk of lung cancer overall, by smoking status (never, former, and current smokers), and histological sub-type. Design Nested case-control study. setting 20 population based cohort studies in Asia, Europe, Australia, and the United States. ParticiPants 5299 patients with incident lung cancer, with individually incidence density matched controls. exPOsure Circulating hsCRP concentrations in prediagnostic serum or plasma samples. Main OutcOMe Measure Incident lung cancer diagnosis. results A positive association between circulating hsCRP concentration and the risk of lung cancer for current (odds ratio associated with a doubling in hsCRP concentration 1.09, 95% confidence interval 1.05 to 1.13) and former smokers (1.09, 1.04 to 1.14) was observed, but not for never smokers (P<0.01 for interaction). This association was strong and consistent across all histological subtypes, except for adenocarcinoma, which was not strongly associated with hsCRP concentration regardless of smoking status (odds ratio for adenocarcinoma overall 0.97, 95% confidence interval 0.94 to 1.01). The association between circulating hsCRP concentration and the risk of lung cancer was strongest in the first two years of follow-up for former and current smokers. Including hsCRP concentration in a risk model, in addition to smoking based variables, did not improve risk discrimination overall, but slightly improved discrimination for cancers diagnosed in the first two years of follow-up. cOnclusiOns Former and current smokers with higher circulating hsCRP concentrations had a higher risk of lung cancer overall. Circulating hsCRP concentration was not associated with the risk of lung adenocarcinoma. Circulating hsCRP concentration could be a prediagnostic marker of lung cancer rather than a causal risk factor.
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52.
  • Purdue, Mark P, et al. (författare)
  • Impaired lung function and lung cancer incidence in a cohort of Swedish construction workers.
  • 2007
  • Ingår i: Thorax. - 0040-6376 .- 1468-3296. ; 62:1, s. 51-6
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Although impaired lung function in general has been associated with an increased risk of lung cancer, past studies typically have not attempted to investigate separately the obstructive and restrictive components of respiratory impairment. To deal with this question further, data from a large (n = 176 997) cohort of male Swedish construction workers, for whom spirometry measurements before follow-up were available, were analysed. METHODS: Cancer incidence for 1971-2001 was obtained through linkage with the national cancer registry. Using a modification of the Global Initiative for Chronic Obstructive Lung Disease criteria for chronic obstructive pulmonary disease (COPD), subjects were classified into five categories of lung function: normal, mild COPD, moderate COPD, severe COPD and restrictive lung disease (RLD). Rate ratios (RR) and 95% confidence intervals (CI) for lung cancer across lung function categories were calculated using Poisson regression, adjusted for age and smoking. Other end points (histological types of lung cancer, non-lung tobacco-related cancers, other cancers, total mortality) were also investigated. RESULTS: 834 incident cases of lung cancer were identified. Increased rates of lung cancer were observed for both COPD (mild: RR 1.5, 95% CI 1.2 to 1.9; moderate/severe: RR 2.2, 95% CI 1.8 to 2.7) and RLD (RR 2.0, 95% CI 1.6 to 2.5) relative to normal lung function. These associations did not meaningfully change on applying follow-up lag times of 5, 10 and 15 years after spirometry. When analysed by histological type, associations with both COPD and RLD were stronger for squamous cell carcinoma and small cell carcinoma, and weaker for adenocarcinoma. Both COPD and RLD were associated with increased rates of total mortality. CONCLUSIONS: Obstructive and restrictive impairments in lung function are associated with increased lung cancer risk.
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53.
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  • Resultat 51-53 av 53
  • Föregående 12345[6]
 
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