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Risk factors for work-related assaults on nurses   总被引:2,自引:0,他引:2  
BACKGROUND: Work-related homicides have been the subject of considerable study, but little is known about nonfatal violence and relevant risk factors. METHODS: We surveyed 6300 Minnesota nurses who were selected randomly from the 1998 licensing database and determined their employment and occupational violence experience. In a nested case-control study, we examined environmental exposures and physical assault. Cases of assault in the previous 12 months and controls randomly selected from assault-free months were surveyed about prior-month exposures. RESULTS: After adjustment by multiple logistic regression, incidence of physical assault was 13.2 per 100 persons per year (95% confidence interval = 12.2-14.3). Among 310 cases and 946 control subjects, odds ratios for assault were increased: in nursing homes or long-term care facilities (2.6; 1.9-3.6), emergency departments (4.2; 1.3-12.8), and psychiatric departments (2.0; 1.1-3.7); in environments not "bright as daylight" (2.2; 1.6-2.8); and for each additional hour of shift duration (1.05; 0.99-1.11). Risks were decreased when carrying cellular telephones or personal alarms (0.3; 0.2-0.7). CONCLUSIONS: These results may guide in-depth investigation of ways protective and risk factors can control violence against nurses.  相似文献   
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Federal aviation regulations prohibit airline pilots from flying beyond the age of 60 years. However, the relation between pilot age and flight safety has not been rigorously assessed using empirical data. From 1987 to 1997, the authors followed a cohort of 3,306 commuter air carrier and air taxi pilots who were aged 45-54 years in 1987. During the follow-up period, the pilots accumulated a total of 12.9 million flight hours and 66 aviation crashes, yielding a rate of 5.1 crashes per million pilot flight hours. Crash risk remained fairly stable as the pilots aged from their late forties to their late fifties. Flight experience, as measured by total flight time at baseline, showed a significant protective effect against the risk of crash involvement. With adjustment for age, pilots who had 5,000-9,999 hours of total flight time at baseline had a 57% lower risk of a crash than their less experienced counterparts (relative risk = 0.43, 95% confidence interval: 0.21, 0.87). The protective effect of flight experience leveled off after total flight time reached 10,000 hours. The lack of an association between pilot age and crash risk may reflect a strong "healthy worker effect" stemming from the rigorous medical standards and periodic physical examinations required for professional pilots.  相似文献   
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Introduction

The aim of this work was to evaluate the therapy results of patients with glottic carcinoma in the T1NoMo advanced clinical stage on internal or external chordectomy via the thyroid cartilage with the use of CO2 laser.

Material and methods

The study was conducted in 110 patients, including 7 women aged 52–68 and 103 men aged 52–73, who were treated in the Department of Otolaryngology and Laryngological Oncology, Military Medical Academy Teaching Hospital in Lodz, during the years 2010–2012, due to laryngeal carcinoma (T1N0M0).

Results

The studied material was subjected to external chordectomy via laryngofissure in 51 men (46.4%), and internal chordectomy with the use of CO2 laser in 52 men (47.2%) and 7 women (6.4%). In the patients operated via laryngofissure, the following types of external chordectomy were performed: IV – in 25 cases (49.0%), Vc – in 12 cases (23.6%), and Vb and Vd – in 7 cases each (13.7% each). Internal chordectomy was conducted with the use of the following types: III – in 31 cases (52.5%), IV – in 15 cases (25.4%) and Vd – in 13 cases (22.1%). During the post-operative follow-up of 1–3 years, no recurrence of carcinoma was observed.

Conclusions

The place and size of carcinoma are often dependent on the type of internal and external chordectomy, which is preceded by tracheotomy and is usually dependent on a patient's consent. Too short post-operative follow-up does not allow for the comparison of effective therapies of the two surgical methods.  相似文献   
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