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Biomedical subjects

H Sjögren

Publications and source records attributed to H Sjögren.

18 recordsLinked to original sources
PubMed1991

Injuries to the elderly in the traffic environment.

Two hundred ninety-seven persons, all aged 60 or over (180 women, 117 men), injured in the traffic environment, and treated at the Regional Hospital in Umeå, over a one-year period, were analysed. Injuries were grouped into three main categories: falls (52%), vehicle-associated events (44%), and "other" injury events (4%). In women, falls were a more common cause of injury than vehicle events, whilst in men there was a tendency for a converse relationship. Two-thirds of the falls involved slipping on ice and snow. Ice- and snow- related injuries (all categories) accounted for 37% of the total cost of all injuries in the elderly in the traffic environment. The main groups in the vehicle-associated injury category were cyclists (48%), car occupants (34%), other occupants (14%), and pedestrians (4%). Vehicle-associated injuries became more common with advancing age, resulted in the most severe and critical [Maximum Abbreviated Injury Scale (MAIS) greater than or equal to 4] injuries and the most fatalities, and cost (total and mean) more than falls. In conclusion, from the injury cost point of view, it is most important to prevent vehicle-associated injuries. However, when total frequencies are considered, falls deserve to be given just as much priority in injury prevention programs as vehicle-associated injuries, to make the traffic environment safer for this growing population.

Abbreviated Injury Scale↗
PubMed1991

Trauma in the elderly: the impact on the health care system.

The impact of injuries in the elderly on the acute health care system was assessed in terms of the cost of injuries. The cost of injuries in the elderly (greater than or equal to 60 years) was compared with that in the younger group (less than 60 years) in a health district in northern Sweden. Even though the elderly made up only one sixth of the total injured during a one year period, they accounted for 42% of the total cost of the medical care of injuries. The mean medical care cost increased significantly from the age of 60 years; the cost was four times higher in the older group than in the younger group. Severe injuries in the elderly cost almost 2.5 times more than those in the younger group. In conclusion, since the elderly place a heavy burden on the health care system, they urgently need to be given priority in injury research and injury intervention programmes.

Accidental Falls↗
PubMed1989

Unintentional injuries among elderly people: incidence, causes, severity, and costs.

People aged 60 years or older (1,313 injured) treated for unintentional injuries at the emergency department of the Regional Hospital in Umeå, Sweden, over a period of one year were included in the material. The injury, fracture, and mortality rates per 1,000 persons aged 60 years or over were 57, 31, and 0.6, respectively. The causes of injuries were falls (70%), vehicle accidents (10%), and other (20%). Injury incidence, severity of injuries, proportion of injuries that were fractures, femur neck fracture frequency, duration of hospitalization, and mean costs of medical care increased with age of patients. Women had a higher injury rate, more severe injuries, longer duration in hospital, and higher cost of medical care than men. The cost of medical care of this group of elderly, making up 15% of all injured in the primary admission area, was SEK* 14 million; this being almost half the cost for all injured. Since the elderly population, especially the very old, is expected to increase in the future, prevention of falls (taking up 80% of total treatment costs) and vehicle accidents (causing the most critical injuries) is of utmost importance.

Accidental Falls↗
PubMed1979

Perceived sound quality of sound-reproducing systems.

Perceived sound quality of loudspeakers, headphones, and hearing aids was investigated by multivariate techniques from experimental psychology with the purpose (a) to find out and interpret the meaning of relevant dimensions in perceived sound quality, (b) find out the positions of the investigated systems in these dimensions, (c) explore the relations between the perceptual dimensions and the physical characteristics of the systems, and (d) explore the relations between the perceptual dimensions and overall evaluations of the systems. The resulting dimensions were interpreted as "clearness/distinctness," "sharpness/hardness softness," "brightness-darkness," "fullness-thinness," "feeling of space," "nearness," "disturbing sounds," and "loudness." Their relations to physical variables were explored by studying the positions of the investigated systems in the respective dimensions. Their relations to overall evaluations were studied, and the implications of the investigations for continued research are discussed.

Adult↗
PubMed1979

Perceived sound quality of hearing aids.

Four experiments dealing with perceived sound quality of hearing aids are described. The purposes were (a) to find a limited number of perceptual dimensions suitable for describing variations in perceived sound quality, (b) to find the positions of the selected hearing aids in these dimensions, (c) to explore the relations between the perceptual dimensions and the physical characteristics of the hearing aids, and (d) to explore the relations between the perceptual dimensions and overall evaluations of the selected hearing aids. Using various multivariate techniques for dimension analysis, the resulting dimensions were interpreted as 'Sharpness/Hardness - Softness', 'Clearance/Distinctness', 'Brightness - Darkness', 'Fullness', 'Feeling of space', 'Nearness', 'Loudness', and 'Disturbing sounds'. Their relations to characteristics of the hearing aids were explored as well as their relations to overall evaluations. The implications for continued research and audiological applications are discussed.

Acoustics↗