Decreased daytime light intensity at nonwindow hospital beds: Comparisons with light intensity at window hospital beds and light exposure in nonhospitalized elderly individuals

Light is crucial for the synchronization of internal biological rhythms with environmental rhythms. Hospitalization causes a range of unfavorable medical conditions, including delirium, sleep disturbances, depressed mood, and increased fall, especially in elderly people. The hospital room environment contributes significantly to patients’ circadian physiology and behavior; however, few studies have evaluated light intensity in hospital settings. In this study, bedside light intensity during the daytime (6:00–21:00) was measured at 1-min intervals using a light meter on 4869 bed-days at the Inabe General Hospital in Mie, Japan (latitude 35°N), for approximately 1 month in each season. Daytime light exposure in home settings was measured in nonhospitalized elderly individuals (n = 1113) for two consecutive days at 1-min intervals using a wrist light meter. Median daytime light intensities at window and nonwindow hospital beds were 327.9 lux [interquartile range (IQR), 261.5–378.4] and 118.4 lux (IQR, 100.6–142.9), respectively, and daytime light intensity measured in nonhospitalized elderly individuals was 337.3 lux (IQR, 165.5–722.7). Compared with data in nonhospitalized elderly individuals, nonwindow beds were exposed to significantly lower daytime light intensity (p < 0.001), whereas window beds were exposed to similar daytime light intensity to that of home settings (p = 1.00). These results were consistent regardless of seasons (spring, summer, fall, and winter) or room directions (north vs. south facing). The lowest median daytime light intensity was observed at nonwindow beds in north-facing rooms during the winter (84.8 lux; IQR, 76.0–95.8). Further studies evaluating the incidence of in-hospital outcomes between patients hospitalized in window and nonwindow beds are needed.     

Use of hospital beds: a cohort study of admissions to a provincial teaching hospital.

An instrument was developed to study the use of hospital beds and discharge arrangements of a cohort of 847 admissions to the John Radcliffe Hospital, Oxford, for a three week period during February-March 1986. For only 38% of bed days were patients considered to have medical, nursing, or life support reasons for requiring a provincial teaching hospital bed. The requirements for a bed in the hospital decreased with the patient''s age and length of stay in hospital. For only a tenth of patients was the general practitioner concerned in discussions with hospital staff about the patient''s discharge and less than one third of patients had been given more than 24 hours'' notice of discharge. Several features might increase the proportion of bed days that are occupied by patients with positive reasons for being in hospital. Among these are an increased frequency of ward rounds by consultants, or delegating discharge decisions by consultants to other staff; providing diagnostic related protocols for planning the length of stay in hospital; planned discharges; and providing liaison nurses to help with communication with primary care staff.     

Integrated hospital and community psychiatric services and use of inpatient beds.

The impact of introducing a divisional psychiatric service based in the community in Nottingham in 1981 on adult psychiatric admissions (patients aged 15-65) was examined with data from the Nottingham case register. During 1980-5 the number of psychiatric admissions fell significantly (4.5% a year) compared with the national figures (0.46% a year). Admissions were reduced most for the diagnoses of affective psychosis and neurotic and personality disorders. The average duration of admission fell by 3.6% a year, and use of inpatient beds fell by 37.5%. Integrating hospital and community psychiatric services by creating sectors is a viable and economically feasible way of improving psychiatric services.     

Effects of pesticides on seagrass beds

In the German Wadden Sea there has been a remarkable decline in seagrass beds. It was the aim of this study to test whether herbicide contamination could be a reason for this. Concentrations of triazine herbicides such as atrazine, simazine and terbutylazine as well as phenylurea herbicides were measured in Wadden Sea sediments within or in the neighbourhood of seagrass meadows. Sediments were thus used as a marker for medium-term contamination of the Wadden Sea. The respective concentrations were examined in relation to the density and status of the seagrass meadows. Preliminary results show that there may be a connection between seagrass decline and herbicide contamination in the parts of the Wadden Sea sampled. A comparison with other contamination is also given. Received: 11 January 1999 / Received in revised form: 1 December 1999 / Accepted: 8 December 1999     

Performing arts medicine.

Arts medicine has come of age, resulting from 3 important developments over the past decade: improved methods of diagnosis and treatment, an awareness that artists suffer from special problems related to their occupation and lifestyle, and the establishment of health programs emphasizing an interdisciplinary approach to these patients. We focus on the patterns of illness afflicting performing artists, specifically dancers, singers, actors, and instrumental musicians, and explain some of the things a health care team can do in treating these patients. The conditions governing these patients'' lives--early exposure to high expectations of excellence, incessant demands for perfection, long periods of intense practicing, fierce competition, high levels of anxiety associated with performance, and uncertain careers--need to be understood. Levels of disease and disability are remarkably high, but artists often ignore symptoms. We discuss the musculoskeletal, neurologic, vocal, psychological, and other syndromes found among performers and some of the difficulties in treating them. The prevention of injury, conservative management, collaboration with teachers, and a psychotherapeutic approach are desirable. Arts medicine programs for professional consultation exist in several major cities of the United States and abroad. Although research is needed regarding the effectiveness of health care services for performing artists, the scientific literature devoted to this field is growing.     

Blocked beds.

In a cross-sectional survey of 325 surgical and orthopaedic beds 43 (16%) of the 265 occupied beds were filled by patients who had no medical need to be in an acute ward. They had been in hospital for a median time of 40 weeks up to the survey date. Of the 43 patients, 11 were awaiting transfer to a geriatric ward; 13 to community residential care; and seven to their homes. There was no plan for discharge or transfer for the remaining 12 (28%). Those "at risk" of becoming long-stay patients for social reasons on these wards were women, over 75, living alone or with one relative, who had been admitted to hospital in emergency with a fractured femur, head injury, or other trauma. Action necessary to reduce the number of social long-stay patients includes (a) changing attitudes to the solving of social case problems; (b) revising procedures of assessment and planning of future care; (c) improving teamwork and record keeping within the hospital and the community services; (d) providing a better balance of acute, medium and long-stay hospital beds; and (e) putting more resources into rehabilitation.     

Miocene monkey beds

Vertebrate Paleontology in the Neotropics: The Miocene Fauna of La Venta, Colombia edited by R.F. Kay et al. Smithsonian Institution Press, 1997. ￡62.50 hbk (xvi +592 pages) ISBN 1 56098 4 18 X.