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    Comparison of different generic and lung cancer specific quality of life instruments for their predictive ability of survival in patients with advanced lung cancer
    (Springer, 2014) Eser, Sultan; Goksel, Tuncay; Erbaycu, Ahmet Emin; Eser, Erhan; Basarik, Burcu; Oz, Aysen; Gursul, Kader Kiyar
    [Abstract Not Available]
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    Comparison of generic and lung cancer-specific quality of life instruments for predictive ability of survival in patients with advanced lung cancer
    (Springer International Publishing Ag, 2016) Eser, Sultan; Goksel, Tuncay; Erbaycu, Ahmet Emin; Baydur, Hakan; Basarik, Burcu; Yanik, Aysen Oz; Gursul, Kader Kiyar
    Background: Our purpose is to examine the relationship of Health related quality of life measured by EORTC QLQc30, QLQ-LC13; FACT-L, LCSS, Eq5D) with survival in advanced lung cancer patients. A total of 299 Lung Cancer (LC) patients were, included in this national multicenter Project entitled of the LC Quality of Life Project (AKAYAK). Baseline scores were analyzed by using Cox's proportional hazard regression to identify factors that influenced survival. Univariate and multivariate models were run for each of the scales included in the study. Results: Mean and median survival were 12.5 and 8.0 months respectively. Clinical stage (as TNM), comorbidity; symptom scales of fatigue, insomnia, appetit loss and constipation were associated with survival after adjustment for age and sex. Global, physical and role functioning scales of QLQc30; physical and functional scales of LCS and TOI of the FACT-L was also associated with survival. Mobility and Usual activities dimensions of the Eq5D; Physical functioning and the constipation symptom scale of the QLQ-c30; and LCS and TOI scores of the FACT-L remained statistically significant after adjustment. LC13 and LCSS scales were not predictors of survival. Conclusions: HRQOL serves as an additional predictive factor for survival that supplements traditional clinical factors. Besides the strong predictive ability of ECOG on survival, FACT-L and the Eq5D are the most promising HRQOL instruments for this purpose.
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    Psychological Determinants of Turkish Farmers' Health and Safety Behaviors: An Application of the Extended Theory of Planned Behavior
    (Mdpi, 2023) Baydur, Hakan; Eser, Erhan; Sen Gundogan, Nesibe Efruz; Ayhan, Emine; Eser, Sultan; Dede, Bahadir; Hazneci, Esin
    Background: Structural and behavioral factors are among the causes of occupational accidents in agriculture. The SACURIMA Cost network developed a questionnaire to measure the determinants of farmers' safety behavior based on the extended theory of planned behavior (TPB). Extended TPB adds subjective norms, subjective control, physical barriers and safety culture to TPB. Objective: The aim of this study is to test the psychometric properties of the Farmers Safety Behaviors questionnaire developed by the SACURIMA Cost network. Methods: A Turkish version of the questionnaire was applied to 305 farmers producing six different agricultural products in Turkey. The tool consists of 64 items measuring the determinants of four risk-related behaviors (fall prevention, machine handling, chemical-pesticide use, and animal handling) in a single extended TPB model. Results: The alpha values for the six dimensions ranged from 0.69 to 0.89. The confirmatory factor analysis results for all dimensions were at acceptable levels (CFI range = 0.93-0.99; RMSEA range = 0.03-0.09). Four path models were used to test the behaviors and their predictors, and the results were found to be predictive. The criterion and known groups' validity analyses results were sufficient. Conclusion: The Farmers Safety Behaviors Questionnaire is a valid and reliable tool to measure the determinants of occupational safety behaviors in Turkish farmers.