| 1. |
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| 2. |
- Gunnarsson, Fredrik, et al.
(författare)
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Neighbor Cell Relation List and Measured Cell Identity Management in LTE
- 2008
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Ingår i: Proceedings of the 2008 IEEE Network Operations and Management Symposium. - : IEEE. - 9781424420667 - 9781424420650 ; , s. 152-159
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Konferensbidrag (refereegranskat)abstract
- Radio network management simplification concerns to some extent the removal, not the simplification, of tasks. In this paper we present an approach for automatic network management in 3G long term evolution (LTE), namely, methods for automatic configuration of locally-unique physical cell identities and neighbor cell relation lists. We show that these issues can be removed from the list of planning tasks and completely replaced by autonomous algorithms. These algorithms make use of mobile measurements to detect local cell identity conflicts, resolve them, and to update the neighbor cell relation lists in the cells. The performance of the approach is determined using simulations of realistically deployed macro networks. The simulations illustrate the ability of the algorithms to resolve local cell identity conflicts. In particular, the algorithms are capable of both accommodating new cells and handling a worst case scenario where all cells are initiated with the same local cell identities and where neighbor cell relation lists are empty. The contributions in this paper are meant to aid operators by allowing them to replace time consuming and costly tasks with automatic mechanisms, thus, reducing operational expenditure.
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| 3. |
- Kallin, Kristina, et al.
(författare)
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Drugs and falls in older people in geriatric care settings.
- 2004
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Ingår i: Aging Clinical and Experimental Research. - 1594-0667 .- 1720-8319. ; 16:4, s. 270-276
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Tidskriftsartikel (refereegranskat)abstract
- ACKGROUND AND AIMS: Falls and their consequences constitute serious health problems in the older population. The aim was to study predisposing factors for falls among older people in geriatric care settings, focusing on drugs. METHODS: This population-based study, with a cross-sectional design, analysed all geriatric care settings, comprising 68 residential care facilities, 31 nursing homes, 66 group dwellings for people with dementia, seven rehabilitation/short-stay units, two somatic geriatric and two psychogeriatric clinics, in the county of Västerbotten; 3604 residents with a mean age of 83.3+/-7.0 (65-103) years (68% women) were included. The residents were assessed by means of the Multi-Dimensional Dementia Assessment Scale (MDDAS) that measures, for example, mobility, paresis, vision, hearing, functions of activities of daily living (ADL), and behavioural and psychiatric symptoms. Drug consumption and falls during the previous week were recorded. RESULTS: Three hundred and one residents (8.4%) had sustained a fall at least once during the preceding week. Multivariate analyses showed that a history of falls, the ability to get up from a chair, the need for a helper when walking, pain, cognitive impairment, and use of neuroleptics or antidepressants were all associated with being a faller. Among the antidepressants, selective serotonin reuptake inhibitors (SSRIs) but not serotonin and noradrenalin reuptake inhibitors (SNRIs) were associated with falls. Cholinesterase inhibitors were not associated with falls. CONCLUSIONS: Like functional and cognitive impairment, treatments with antidepressants and neuroleptics are predisposing factors for falls in older people in residential care. However, there seem to be differences between subgroups among these drugs and, from the perspective of fall prevention, SNRIs rather than SSRIs should perhaps be preferred in the treatment of depression in older people.
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| 4. |
- Kallin, Kristina, et al.
(författare)
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Factors associated with falls among older, cognitively impaired people in geriatric care settings : a population-based study
- 2005
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Ingår i: The American journal of geriatric psychiatry. - 1064-7481 .- 1545-7214. ; 13:6, s. 501-509
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The authors studied factors associated with falls among cognitively impaired older people in geriatric care settings.Method: This was a study using all geriatric care settings in a county in northern Sweden. Residents were assessed by means of the Multi-Dimensional Dementia Assessment Scale, supplemented with questions concerning the use of physical restraints, pain, previous falls during the stay, and falls and injuries during the preceding week. Data about both falls and cognition were collected in 3,323 residents age 65 and older. Of these residents 2,008 (60.4%) were cognitively impaired, and they became the study population. Of the participants, 69% were women; mean age: 83.5 years.RESULTS: Of 2,008 cognitively impaired residents, 189 (9.4%) had fallen at least once during the preceding week. Being able to get up from a chair, previous falls, needing a helper when walking, and hyperactive symptoms were the factors most strongly associated with falls.CONCLUSION: Preventing falls in cognitively impaired older people is particularly difficult. An intervention strategy would probably have to include treatment of psychiatric and behavioral symptoms, improvement of gait and balance, and adjustment of drug treatment, as well as careful staff supervision.
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| 5. |
- Kallin, Kristina
(författare)
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Falls in older people in geriatric care settings : predisposing and precipitating factors
- 2004
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Falls and their consequences are a major health problem in the older population, increasing their immobility, morbidity and mortality. This thesis focuses on older people living in geriatric care settings, frail older people who are most prone to suffer falls. The aim was to study predisposing and precipitating factors associated with falls in older people with or without cognitive impairment. In a cross-sectional study with a one-year prospective follow-up for falls 63% of the 83 residents suffered 163 falls and 65% of the fallers fell more than once. The antidepressants selective serotonine reuptake inhibitors (SSRIs), impaired vision and being unable to use stairs independently were the factors most strongly associated with sustaining falls. Acute diseases were judged to have precipitated 32 % of the falls and drug side effects 9%. In another cross-sectional study with a one-year follow-up for falls, including 199 residents, previous falls and treatment with antidepressants (mainly SSRIs) were found to be the most important predisposing factor for falls. Acute disease was judged to be the precipitating factor alone or in combination, in 39% of the falls, medical drugs in 8%, external factors such as obstacles in 8% and other conditions both related to the individual and the environment, such as misinterpretation, misuse of roller walkers or mistakes made by the staff were judged to have precipitated 17% of the falls. In a population-based cross-sectional study including 3604 residents in geriatric care settings more than 8% sustained a fall at least once during the preceding week. A history of falls, the ability to get up from a chair, the need for a helper when walking, pain, cognitive impairment, use of neuroleptics and use of antidepressants were all associated with falls in multivariate analyses. In the subgroup of people with cognitive impairment (2008 residents) more than 9% had sustained a fall at least once during the preceding week. As for the whole population, being able to get up from a chair, previous falls, needing a helper when walking with the addition of hyperactive symptoms were the factors independently associated with falls. In a study with a one-year prospective follow up for falls, including 439 residents in residential care facilities, 63% sustained 1354 falls, corresponding to an incidence rate of 3.5 falls / person year. Thirty-three percent of the falls and 37% of the injurious falls occurred during the night (9pm-6am). There were significantly higher fall rates in the evening and in January, April, May, November and December. There were no associations between fall rates and any of the weather parameters studied. In conclusion falls and fall-related injuries in older people in geriatric care settings are common. Both predisposing and precipitating factors contribute to the risk of falling. Addressing precipitating factors for falls seems to be important in an individualised preventive strategy among older people in geriatric care settings.
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| 6. |
- Kallin, Kristina, et al.
(författare)
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Predisposing and precipitating factors for falls among older people in residential care
- 2002
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Ingår i: Public Health. - 0033-3506 .- 1476-5616. ; 116:5, s. 263-271
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Tidskriftsartikel (refereegranskat)abstract
- Falls and their consequences are serious health problems among older populations. To study predisposing and precipitating factors for falls among older people in residential care we used a cross-sectional study design with a prospective follow up for falls. Fifty-eight women and 25 men, with a mean age of 79.6 y, were included and prospectively followed up regarding falls for a period of 1 y after baseline assessments. All those who fell were assessed regarding factors that might have precipitated the fall. The incidence rate was 2.29 falls/person years. Antidepressants (selective serotonin reuptake inhibitors, SSRIs), impaired vision and being unable to use stairs without assistance were independently associated with being a 'faller'. Twenty-eight (53.8%) of the fallers suffered injuries as a result of their falls, including 21 fractures. Twenty-seven percent of the falls were judged to be precipitated by an acute illness or disease and 8.6% by a side effect of a drug. Acute symptoms of diseases or drug side effects were associated with 58% of the falls which resulted in fractures. We conclude that SSRIs seem to constitute one important factor that predisposes older people to fall, once or repeatedly. Since acute illnesses and drug side-effects were important precipitating factors, falls should be regarded as a possible symptom of disease or a side-effect of a drug until it is proven otherwise.
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| 7. |
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| 8. |
- Kallin, Kristina, et al.
(författare)
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Why the elderly fall in residential care facilities, and suggested remedies.
- 2004
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Ingår i: The Journal of family practice. - 0094-3509 .- 1533-7294. ; 53:1, s. 41-52
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To study precipitating factors for falls among older people living in residential care facilities. DESIGN: Prospective cohort study. SETTING: Five residential care facilities. PARTICIPANTS: 140 women and 59 men, mean age +/- SD 82.4 +/- 6.8 (range, 65-97). MEASUREMENTS: After baseline assessments, falls in the population were tracked for 1 year. A physician, a nurse, and a physiotherapist investigated each event, and reached a consensus concerning the most probable precipitating factors for the fall. RESULTS: Previous falls and treatment with antidepressants were found to be the most important predisposing factors for falls. Probable precipitating factors could be determined in 331 (68.7%) of the 482 registered falls. Acute disease or symptoms of disease were judged to be precipitating, alone or in combination in 186 (38.6%) of all falls; delirium was a factor in 48 falls (10.0%), and infection, most often urinary tract infection, was a factor in 38 falls (7.9%). Benzodiazepines or neuroleptics were involved in the majority of the 37 falls (7.7%) precipitated by drugs. External factors, such as material defects and obstacles, precipitated 38 (7.9%) of the falls. Other conditions both related to the individual and the environment, such as misinterpretation (eg, overestimation of capacity or forgetfulness), misuse of a roller walker, or mistakes made by the staff were precipitating factors in 83 (17.2%) of falls. CONCLUSION: Among older people in residential care facilities, acute diseases and side effects of drugs are important precipitating factors for falls. Falls should therefore be regarded as a possible symptom of disease or a drug side effect until proven otherwise. Timely correction of precipitating and predisposing factors will help prevent further falls.
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| 9. |
- Lövheim, Hugo, et al.
(författare)
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Poor staff awareness of analgesic treatment jeopardises adequate pain control in the care of older people
- 2006
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Ingår i: Age and Ageing. - : Oxford University Press (OUP). - 0002-0729 .- 1468-2834. ; 35:3, s. 257-261
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Tidskriftsartikel (refereegranskat)abstract
- Background: undertreatment of pain is a common problem in geriatric care. The aim of this study was to compare the caring staff 's answers concerning the resident's pain treatment with actual pharmacological pain treatment in a cross-sectional survey of the geriatric care population in the county of Vasterbotten, Sweden. Methods: a cross-sectional study in all geriatric care units in the county of Vasterbotten, Sweden, including 3,724 inhabitants aged 65 years and over. The mean age was 83.3 and the number of cognitively impaired 2,047 (55.0%). Medication data were obtained from prescription records. The member of staff who knew the resident best judged their pain based on observations the preceding week. Results: the reported pain prevalence in the sample was 56.7%. Of those residents reported to suffer from pain, 27.9% received no analgesics as regular medication. In 72.7% of those cases with reported pain and no pharmacological treatment, the staff member who knew the resident best still thought that the resident was receiving treatment for her/his pain. Conclusion: a large proportion of the old people in geriatric care settings suffer from pain, and undertreatment of pain appears to be a significant problem. Even when the resident was not receiving pharmacological treatment for their pain, the assessor, who was expected to know the resident best, still believed in a majority of cases that the resident was receiving treatment. This highlights the need for better communication between the various professional categories involved in geriatric care.
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| 10. |
- Lövheim, Hugo, et al.
(författare)
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Relationship between antipsychotic drug use and behavioral and psychological symptoms of dementia in old people with cognitive impairment living in geriatric care.
- 2006
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Ingår i: International psychogeriatrics. - 1041-6102 .- 1741-203X. ; 18:4, s. 713-726
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Behavioral and psychological symptoms of dementia (BPSD) commonly occur among cognitively impaired people in geriatric care. BPSD are often managed with antipsychotic drugs, despite the associated serious health risks. The aim of the present study was to discover factors associated with the use of antipsychotics.METHODS: A cross-sectional study in all geriatric care units in the county of Västerbotten, Sweden, which included 2017 residents aged 65 years and over with cognitive impairment (mean age was 83.5 years). Data were collected from prescription records and observations made by care staff of BPSD among residents during the preceding week. A multivariate regression model was constructed to find factors independently associated with antipsychotic drug use.RESULTS: Eleven factors were independently associated with the use of antipsychotics. Aggressive, verbally disruptive and wandering behavior, hallucinatory and depressive symptoms, male sex, living in a group dwelling for people with dementia, imposed mental workload, the ability to rise from a chair, activities of daily living (ADL) dependency and lower age all correlated significantly.CONCLUSIONS: Antipsychotic drug treatment of old people with cognitive impairment in geriatric care is common, and determined not only by the patient's symptoms but also by factors related more closely to the caregiver and the caring situation. These findings raise important questions about the indications for drug treatment in relation to the patient's quality of life.
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