177 research outputs found

    Spontaneous quitting: self initiated smoking cessation in early pregnancy.

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    This article reviews the empirical literature on spontaneous quitting of cigarette smoking among pregnant women. We define spontaneous quitting and discuss its prevalence and the characteristics that differentiate spontaneous quitters from women who continue to smoke during pregnancy. We examine the success of these women in abstaining throughout their pregnancy, and their pattern of relapse back to smoking during the postpartum period. We review studies that have tested strategies to maintain abstinence among spontaneous quitters, and we conclude the article with gaps identified in the literature that warrant further study

    Prostatitis, Sexually Transmitted Diseases, and Prostate Cancer: The California Men's Health Study

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    BACKGROUND: Prostatitis and sexually transmitted diseases (STDs) have been positively associated with prostate cancer in previous case-control studies. However, results from recent prospective studies have been inconclusive. METHODOGY/PRINCIPAL FINDINGS: We investigated the association between prostatitis, STDs, and prostate cancer among African American, Asian American, Latino, and White participants of the California Men's Health Study. Our analysis included 68,675 men, who completed a detailed baseline questionnaire in 2002-2003. We identified 1,658 incident prostate cancer cases during the follow-up period to June 30, 2006. Cox proportional hazards models were used to estimate relative risks and 95% confidence intervals. Overall, men having a history of prostatitis had an increased risk of prostate cancer than men with no history (RR = 1.30; 95% CI: 1.10-1.54). Longer duration of prostatitis symptoms was also associated with an increased risk of prostate cancer (P trend = 0.003). In addition, among men screened for prostate cancer (1 or 2 PSA tests), a non-significant positive association was observed between prostatitis and prostate cancer (RR = 1.10; 95% CI: 0.75-1.63). STDs were not associated with overall prostate cancer risk. In racial/ethnic stratified analysis, Latinos reporting any STDs had an increased risk of disease than those with no STDs (RR = 1.43; 95% CI: 1.07-1.91). Interestingly, foreign-born Latinos displayed a larger risk associated with STDs (RR = 1.87; 95% CI: 1.16-3.02) than U.S. born Latinos (RR = 1.15; 95% CI: 0.76-3.02). CONCLUSION: In summary, results from this prospective study suggest that prostatitis and STDs may be involved in prostate cancer susceptibility. While we cannot rule out the possible influence of incidental detection, future studies are warranted to further investigate the role of infectious agents related to prostatitis and STDs in prostate cancer development

    Continuous real time ex vivo epifluorescent video microscopy for the study of metastatic cancer cell interactions with microvascular endothelium

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    Recent studies suggest that only endothelium-attached malignant cells are capable of giving rise to hematogenous cancer metastases. Moreover, tumor cell adhesion to microvascular endothelium could be crucial in metastasis predilection to specific organs or tissues. However, the existing in vitro and in vivo techniques do not provide for sufficient delineation of distinct stages of a dynamic multi-step intravascular adhesion process. Here we report the development of an experimental system allowing for prolonged continuous ex vivo real-time observation of malignant cell adhesive interactions with perfused microvessels of a target organ in the context of its original tissue. Specifically, the vasculature of excised dura mater perfused with prostate cancer cells is described. An advantage of this technique is that selected fluorescently labeled tumor cells can be followed along identified vascular trees across the entire tissue specimen. The techniques provide for superior microvessel visualization and allow for uninterrupted monitoring and video recording of subsequent adhesion events such as rolling, docking (initial reversible adhesion), locking (irreversible adhesion), and flattening of metastatic cancer cells within perfused microvasculature on a single cell level. The results of our experiments demonstrate that intravascular adhesion of cancer cells differs dramatically from such of the leukocytes. Within dura microvessels perfused at physiological rate, non-interacting, floating, tumor cells move at velocities averaging 7.2×10 3  μm/s. Some tumor cells, similarly to leukocytes, exhibit rolling-like motion patterns prior to engaging into more stable adhesive interactions. In contrast, other neoplastic cells became stably adhered without rolling showing a rapid reduction in velocity from 2×10 3 to 0 μm/s within fractions of a second. The experimental system described herein, while developed originally for studying prostate cancer cell interactions with porcine dura mater microvasculature, offers great flexibility in adhesion experiments design and is easily adapted for use with a variety of other tissues including human.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/42585/1/10585_2004_Article_5120583.pd

    Webinar Training: an acceptable, feasible and effective approach for multi-site medical record abstraction: the BOWII experience

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    <p>Abstract</p> <p>Background</p> <p>Abstractor training is a key element in creating valid and reliable data collection procedures. The choice between in-person vs. remote or simultaneous vs. sequential abstractor training has considerable consequences for time and resource utilization. We conducted a web-based (webinar) abstractor training session to standardize training across six individual Cancer Research Network (CRN) sites for a study of breast cancer treatment effects in older women (BOWII). The goals of this manuscript are to describe the training session, its participants and participants' evaluation of webinar technology for abstraction training.</p> <p>Findings</p> <p>A webinar was held for all six sites with the primary purpose of simultaneously training staff and ensuring consistent abstraction across sites. The training session involved sequential review of over 600 data elements outlined in the coding manual in conjunction with the display of data entry fields in the study's electronic data collection system. Post-training evaluation was conducted via Survey Monkey<sup>©</sup>. Inter-rater reliability measures for abstractors within each site were conducted three months after the commencement of data collection.</p> <p>Ten of the 16 people who participated in the training completed the online survey. Almost all (90%) of the 10 trainees had previous medical record abstraction experience and nearly two-thirds reported over 10 years of experience. Half of the respondents had previously participated in a webinar, among which three had participated in a webinar for training purposes. All rated the knowledge and information delivered through the webinar as useful and reported it adequately prepared them for data collection. Moreover, all participants would recommend this platform for multi-site abstraction training. Consistent with participant-reported training effectiveness, results of data collection inter-rater agreement within sites ranged from 89 to 98%, with a weighted average of 95% agreement across sites.</p> <p>Conclusions</p> <p>Conducting training via web-based technology was an acceptable and effective approach to standardizing medical record review across multiple sites for this group of experienced abstractors. Given the substantial time and cost savings achieved with the webinar, coupled with participants' positive evaluation of the training session, researchers should consider this instructional method as part of training efforts to ensure high quality data collection in multi-site studies.</p

    Pro-Work Policy Proposals for Older Americans in the 21st Century

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    Reports that the Social Security Trust Fund will be exhausted sometime in the early part of the next century reinforce the need to make retirement policy in the United States more accommodating for those who want to work. While there is general agreement that disincentives to work at older ages in both Social Security and employer pension plans played an important role in the dramatic drop in retirement age from 1945 through 1985, skepticism exists over the ability of policy changes to both stop this trend and increase work at older ages. In this policy brief we summarize how government policy has influenced retirement since the end of World War II, show that reductions in some of the anti-work aspects of our retirement system in the 1980s appear to have ended the trend toward earlier and earlier retirement, and offer five pro-work policies which would increase work for twenty-first century older Americans

    Suicide Attempts Among a Cohort of Transgender and Gender Diverse People

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    INTRODUCTION: Transgender and gender diverse people often face discrimination and may experience disproportionate emotional distress that leads to suicide attempts. Therefore, it is essential to estimate the frequency and potential determinants of suicide attempts among transgender and gender diverse individuals. METHODS: Longitudinal data on 6,327 transgender and gender diverse individuals enrolled in 3 integrated healthcare systems were analyzed to assess suicide attempt rates. Incidence was compared between transmasculine and transfeminine people by age and race/ethnicity and according to mental health status at baseline. Cox proportional hazards models examined rates and predictors of suicide attempts during follow-up. Data were collected in 2016, and analyses were conducted in 2019. RESULTS: During follow-up, 4.8% of transmasculine and 3.0% of transfeminine patients had at least 1 suicide attempt. Suicide attempt rates were more than 7 times higher among patients aged45 years, more than 3 times higher among patients with previous history of suicide ideation or suicide attempts than among those with no such history, and 2-5 times higher among those with 1-2 mental health diagnoses and more than 2 mental health diagnoses at baseline than among those with none. CONCLUSIONS: Among transgender and gender diverse individuals, younger people, people with previous suicidal ideation or attempts, and people with multiple mental health diagnoses are at a higher risk for suicide attempts. Future research should examine the impact of gender-affirming healthcare use on the risk of suicide attempts and identify targets for suicide prevention interventions among transgender and gender diverse people in clinical settings

    Efficacy and Safety of Lenabasum, a Cannabinoid Type 2 Receptor Agonist, in a Phase 3 Randomized Trial in Diffuse Cutaneous Systemic Sclerosis

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    INTRODUCTION: Efficacy and safety of lenabasum, a cannabinoid type 2-receptor agonist, was tested in a Phase 3 study in patients with diffuse cutaneous systemic sclerosis (dcSSc). METHODS: A multi-national double-blind study was conducted in 365 dcSSc patients who were randomized and dosed 1:1:1 with lenabasum 20 mg, lenabasum 5 mg, or placebo, each twice daily and added to background treatments including immunosuppressive therapies (IST). RESULTS: The primary endpoint, ACR Combined Response Index in dcSSc (ACR-CRISS) score at Week 52, lenabasum 20 mg BID versus placebo, was not met, with ACR-CRISS scores of 0.888 versus 0.887, P = 0.4972, mixed models repeated measures (MMRM). Change in modified Rodnan Skin Score (mRSS) at Week 52 was -6.7 versus -8.1 points for lenabasum 20 mg BID versus placebo, P = 0.1183, MMRM. Pre-specified analyses showed higher ACR-CRISS scores, greater improvement in mRSS, and less decline in forced vital capacity in subjects on background mycophenolate and those receiving IST for ≤ 1 year duration. No deaths or excess in serious or severe adverse events related to lenabasum were observed. CONCLUSIONS: A benefit of lenabasum in dcSSc was not demonstrated. The majority of patients were treated with background IST, and treatment with MMF in particular was associated with better outcomes. This supports the use of IST in the treatment of dcSSc, and highlights the challenge of demonstrating a treatment effect when investigational treatment is added to standard of care IST. These findings have relevance to trial design in SSc, as well as clinical care
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