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E Vingård

Publications and source records attributed to E Vingård.

34 records · Page 2Linked to original sources

Lifestyle factors and hip arthrosis. A case referent study of body mass index, smoking and hormone therapy in 503 Swedish women.

We investigated in a case-referent study the relationship between arthrosis of the hip in women and lifestyle factors such as body mass index (BMI), smoking and hormone therapy. The study comprised all women of ages 50-70 years, living in 5 counties and 5 towns in Sweden 1991-1994. The cases (n 230) were women with total hip replacements (THR) because of primary arthrosis, and the referents (n 273) were randomly selected women from the study base, without hip problems. All women were interviewed about height, weight, smoking habits, hormone therapy, sports activities, occupational history, home work, etc, to the age of 50. The relative risk of developing hip arthrosis leading to a THR after the age of 50 was associated with an increased BMI. The highest value, 2.9 (Cl 1.3-6.5), was reported in those with BMI > or = 25 at the age of 40. The preventive value of weight loss seems substantial. There was a greater risk of 1.5 (Cl 1.0-2.2) for smokers than for non-smokers. Use of contraceptive pills meant an increase in the relative risk for THR, unlike estrogen substitution which was associated with a lower risk than in unexposed persons.

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Musculoskeletal disorders in former athletes. A cohort study in 114 track and field champions.

We studied the influence of elite track and field activities on the musculoskeletal system in a cohort of 114 Swedish men 50-80 years of age compared to 355 randomly selected referents in the same age group. Arthrosis of the hip was increased more than threefold among the athletes (8 percent) compared to the referents (2 percent). For other musculoskeletal disorders the distribution was similar between the groups but the prevalence of arthrosis of the knee tended to increase while that of neck/shoulder disorders tended to decrease in the athlete group.

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Etiologic fractions for physical work load, sports and overweight in the occurrence of coxarthrosis.

OBJECTIVES: The aim of this study was to estimate the impact of physical work load, sports, and overweight on the incidence of coxarthrosis. METHODS: A case-referent study was made of 239 male recipients of a hip prosthesis and 302 men randomly selected from the general population. Information was obtained by means of an interview and questionnaire. Exposures to physical work load and sports were measured as the cumulative number of hours of exposure up to 49 years of age. Overweight was measured as the estimated body mass index at 30 or 40 years of age. RESULTS: The etiologic fraction related to the three risk factors was 40% for physical work load, 55% for sports, and 15% for overweight. Various measures of physical work load were considered, but they all proved to be correlated. CONCLUSIONS: Approximately 80% of the idiopathic coxarthrosis was explained by the presence of the three risk factors.

Age Factors↗

Occupation and osteoarthrosis of the hip and knee: a register-based cohort study.

A register-based cohort study was performed to investigate if men and women in certain occupations with high physical workload had increased risks of developing severe symptomatic osteoarthrosis of the hip and knee, resulting in hospital care. The study population consisted of 250,217 people from the 1980 census, in blue-collar occupations, who had reported the same occupation in the 1960 and 1970 censuses. The study population was followed for hospital care for osteoarthrosis of the hip and knee during 1981-1983 by linkage to the Swedish Hospital Discharge Register. Different blue-collar occupations were classified as high or low with regard to exposure to forces acting on the hip and knee and the frequencies of the outcomes were compared. Male farmers, construction workers, firefighters and some food processing workers had an excess risk of hospitalization due to osteoarthrosis of the hip. Male farmers, construction workers and firefighters also had increased risks of osteoarthrosis of the knee. Female mail carriers had an excess risk of osteoarthrosis of the hip, and female cleaners, of osteoarthrosis of the knee. The findings support the hypothesis that heavy physical work load contributes to osteoarthrosis of the hip and knee.

Cohort Studies↗

Overweight predisposes to coxarthrosis. Body-mass index studied in 239 males with hip arthroplasty.

In a case-control study, body-mass index (BMI) at aged 20, 30, 40, and 50 years was studied in 239 men who had just received a hip prosthesis because of coxarthrosis and in 302 controls randomly selected from the general population. Information about weight, occupational physical load, sports activities, smoking, and many other factors was self-reported in a questionnaire. Men with a BMI greater than the mean BMI + 1 SD had an increased relative risk of developing severe coxarthrosis as compared with men with a BMI less than the mean BMI -1 SD. Those slightly obese at the aged 40 years had a relative risk of 2.5 for later surgery of the hip.

Adult↗

Coxarthrosis and physical work load.

A case-referent study was performed on the possible relationship between physical work loads and an increased risk of developing coxarthrosis. The cases were 239 male recipients of a hip prosthesis as a result of severe idiopathic coxarthrosis; the referents were 302 men randomly selected from the general population. The work load was assessed through an interview and a self-administered questionnaire on the men's specific work periods. Men highly exposed to dynamic or static work loads had an increased relative risk of 2.42 (95% confidence interval 1.45-4.04) for developing coxarthrosis when compared with men with low exposure. Men with high exposure to heavy lifting between the ages of 30 and 49 years had the highest relative risk, 3.31 (95% confidence interval 1.97-5.57). Long-time exposure to physical work loads seems to be a risk factor for severe coxarthrosis among men.

Adult↗

Differences in the association between psychosocial work conditions and physical work load in female- and male-dominated occupations. MUSIC-Norrtälje Study Group.

This study investigated whether there is a relationship between high physical work load and adverse psychosocial work factors, and whether this relationship is different for women and men. Separate analyses for female registered nurses and assistant nurses were made because these are common occupations involving high physical and psychological demands. This study was part of the MUSIC-Norrtälje study, a population study with the overall aim of identifying risk factors for musculoskeletal disorders. The respondents, 1423 gainfully employed men and women, were randomly selected from the study population. The exposure assessments referred to a typical workday during the previous 12 months. Physical exposure was investigated by interview, psychosocial work factors by interview and questionnaire. For the women, but not the men, mainly routine work and a job strain situation, according to the model of Karasek and Theorell, increased the probability of having a high physical work load, assessed as a time-weighted average of energy expenditure in multiples of the resting metabolic rate. Results indicated that in female-dominated occupations, high physical work load might also imply adverse psychosocial conditions. A higher frequency of high physical work load and job strain was observed among assistant nurses compared with registered nurses. Covariance between physical and psychosocial demands makes it difficult to determine the relative influence of each in health problems. Results of the present study imply that this is a larger problem in studies of women than men.

Adult↗

Sports and osteoarthrosis of the hip. An epidemiologic study.

To investigate if participation in sports increases the risk of developing osteoarthrosis of the hip, we did a case-control study on the sports activities of 233 men (up to age 49) who were recent recipients of a prosthesis because of severe idiopathic osteoarthrosis of the hip and 302 men randomly selected from the general population. Assessments of sports, job history, and health status were made by an interview. Men with high exposure to sports of all kinds combined (in hours) had a relative risk to develop osteoarthrosis of the hip of 4.5 compared to those with low exposure. Track and field sports and racket sports seemed to be the most hazardous to the hip joint. Men who had been exposed to high physical loads both from their occupation and sports had a relative risk of 8.5 to develop osteoarthrosis of the hip compared to those with low physical load in both activities. Potential confounding factors, such as age, body mass index, and smoking, were considered. Long-term exposure to sports among men seems to be a risk factor for developing severe osteoarthrosis of the hip; this is increased when combined with heavy load from occupation.

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Osteoarthrosis of the hip in women and its relationship to physical load from sports activities.

In a case-control study, the relationship between sporting activities and osteoarthrosis of the hip in women was investigated. The study base comprised Swedish women 50 to 70 years of age between 1991 and 1994. Case subjects (N = 230) had had total hip replacements because of primary osteoarthrosis of the hip, and control subjects (N = 273) were randomly selected women without hip problems from the study base. All women were interviewed about sports activities to the age of 50, health status, smoking habits, occupational history, and work in the home. Three exposure classes were defined based on total hours of sports activities aggregated to the age of 50. The relative risks of developing osteoarthrosis of the hip leading to total hip replacement was 2.3 (confidence interval, 1.5 to 3.7) for those with high sports exposure and 1.5 (0.9 to 2.5) for those with medium sports exposure compared with those with low exposure. The relative risks were adjusted for age, occupational physical load, body mass index, hormone therapy, and smoking. Physical load from sporting activities seems to be a moderate risk factor for women for the development of severe osteoarthrosis of the hip. Participation in sports was low, and therefore individual risk estimates for different sports activities were not possible to obtain.

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