Given a passage classify if the passage has a definite objective/aim/goal or not. Output '1' if the passage has a defininte objective/aim/goal and output '0' if the passage does not have a definite objective/aim/goal.
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Question: Stigma has been suggested as a possible contributor to the high rates of treatment attrition in substance-dependent individuals, but no published empirical studies have examined this association.', 'The present paper assessed the relationship between baseline stigma variables and length of treatment stay in a sample of patients in a residential addictions treatment unit.', 'The relationship between baseline stigma variables (self-stigma, enacted stigma, and shame) and length of stay for participants (n=103) in a residential addictions treatment unit was examined.', 'Higher self-stigma predicted longer stay in residential addictions treatment, even after controlling for age, marital status, race, overall mental health, social support, enacted stigma, and internalized shame. However, other stigma variables (i.e. internalized shame, stigma-related rejection) did not reliably predict length of treatment stay.

Answer: 1


Question: Right ventricular failure does not explain all cases of death in patients with chronic pulmonary hypertension. Searching for alternative explanations, we evaluated the prognostic significance of main pulmonary artery (PA) dilatation in patients with pulmonary arterial hypertension (PAH) or chronic thromboembolic pulmonary hypertension (CTEPH).', 'A retrospective outcome analysis was made of 264 patients (aged 46 ± 17 years; women, 69%; PAH, 82%) who underwent both CT scan measurement of the PA and right-sided heart catheterization (mean PA pressure, 57.6 ± 16.5 mm Hg) at initial evaluation.', 'The diameter of the PA ranged from 28 to 120 mm (mean, 39 ± 8.6 mm; median, 38 mm) and was largest in patients with unrepaired congenital defects (42.6 ± 7.6 mm). Pulmonary pulse pressure (P = .04), lower age (P = .03), and duration of symptoms (P &lt; .001) were independently but weakly related to PA diameter. During follow-up (median, 38 months), 99 patients (37%) died. Of these 99 deaths, 73 (74%) were due to heart failure or comorbidities, and 26 (26%) were unexpected deaths (UE-Ds). PA diameter (hazard ratio [HR], 1.06 per 1 mm; 95% CI, 1.03-1.08), heart rate (HR, 1.30 per 10 beats/min; 95% CI, 1.01-1.66), and systolic pulmonary arterial pressure (HR, 1.02 per 1 mm Hg; 95% CI, 1.01-1.04) were the only independent predictors of UE-D and differed from the usual predictors found in the study group for all-cause mortality. PA diameter ≥ 48 mm had 95% specificity and 39% sensitivity and carried 7.5 times higher risk of UE-D (95% CI, 3.4-16.5; P &lt; .0001) during follow-up.

Answer: 0


Question: Lung adenocarcinomas with mutations in the epidermal growth factor receptor (EGFR) have unprecedented initial responses to targeted therapy against the EGFR. Over time, however, these tumors invariably develop resistance to these drugs. We set out to investigate alternative treatment approaches for these tumors.', 'To investigate the immunologic underpinnings of EGFR mutant lung adenocarcinoma, we utilized a bi-transgenic mouse model in which a mutant human EGFR gene is selectively expressed in the lungs.', 'EGFR oncogene-dependent progression and remission of lung adenocarcinoma was respectively dependent upon the expansion and contraction of alveolar macrophages, and the mechanism underlying macrophage expansion was local proliferation. In tumor-bearing mice, alveolar macrophages downregulated surface expression of MHC-II and costimulatory molecules; increased production of CXCL1, CXCL2, IL-1RA; and increased phagocytosis. Depletion of alveolar macrophages in tumor-bearing mice resulted in reduction of tumor burden, indicating a critical role for these cells in the development of EGFR mutant adenocarcinoma. Treatment of mice with EGFR targeting clinical drugs (erlotinib and cetuximab) resulted in a significant decrease in alveolar macrophages in these mice. An activated alveolar macrophage mRNA signature was dominant in human EGFR mutant lung adenocarcinomas, and the presence of this alveolar macrophage activation signature was associated with unfavorable survival among patients undergoing resection for EGFR mutant lung adenocarcinoma.

Answer:
1