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The surgical work day in the British Isles: some observations from a small sample studied in depth.

The daily activities of nine surgeons in the British Isles, representing a variety of practice settings, were observed. British surgeons had a mean total workweek of 45.8 hours, of which 34.5 hours were expended in professional activities. American community surgeons, as reported in the literature, had an analogous professional workweek of 28.7 hours, and American prepaid group surgeons, 50.7 hours. The American community surgeons performed many fewer operations, but the American prepaid group surgeons had operative loads similar to those of the British, although with a much greater time expenditure. Superior organization of British operating rooms in "lists," the designation of certain operating days each week, a more rapid anesthesia induction and case turnover, all aided more rapid completion of a number of sequential surgical operations. Non-operative professional time expended per patient was less for the British group than any of the reported American groups.

General Surgery

Antisocial children in a summer camp environment: a time-sampling study.

A discussion is set forth regarding the possibly dysfunctional consequences of grouping antisocial children in homogeneous contexts for treatment. It is posited that antisocial children can profit from being placed for treatment in community based settings (for example, community centers, YMCAs, and neighborhood settlement houses) in which most of the other children are considered prosocial. In the present study 5 antisocial boys were placed in a residential summer camp consisting of 81 boys and 75 girls. Comparisons are made among the frequencies of prosocial, nonsocial, and antisocial behavior observed for the antisocial children placed in four groups, prosocial children in these groups, and the prosocial children in four other groups. These comparisons yield no significant differences among the antisocial and prosocial children's behavior. Findings are discussed in terms of their relevance for the helping professions.

Camping

Multiple role juggling and daily mood states in working mothers: an experience sampling study.

The effects of multiple role juggling (i.e., simultaneously attending to demands of different roles) on daily mood states of employed mothers were examined. Ss completed activity and mood questionnaires 8 times a day for 8 days. Multiple role juggling had immediate negative effects on task enjoyment and mood. However, contrast effects and habituation to role juggling occurred when mood and satisfaction were examined over time. Furthermore, mood states tended to spill over from one episode to the next within a day, but contrast effects were found across days. These results reflect the complex nature of psychological adjustment to multiple role occupancy.

Adaptation, Psychological

Dialysis costs: results of a diverse sample study.

A study of dialysis costs in five major dialysis centers throughout the United States was conducted in 1973. When available, home, home training, limited care, satellite and in-hospital-full-care dialysis were included. The study's objective was to determine the cost per dialysis for each separate dialysis modality. All costs associated with the dialysis procedure were included. Using a uniform methodology, costs were collected on four care levels which vary significantly from each other in the use of direct labor. They are as follows: home, home care training, limited care and full care. Costs were also segregated into five expenditure categories: personnel, supplies, travel, equipment and other. They study was designed to show the range of costs in five "representative" centers throughout the country, but not to provide statistical "average" of dialysis costs. Cost per dialysis ranged from $33 to 66 for the home patient group, $100 to 116 for limited care, $144 to 172 for in-hospital and $146 to 259 for the home training units.

Costs and Cost Analysis

A large-sample study of diazepam pharmacokinetics.

Healthy male volunteers (n = 48) aged 18-44 years received a single 10-mg oral dose of diazepam. Plasma diazepam and desmethyldiazepam concentrations were measured at multiple points during the next 11 days. The distribution of peak plasma concentration (mean, 406 ng/ml) was not skewed and did not differ significantly from normal (Guassian). However, the distributions of elimination half-life (44.2 h), elimination rate constant (0.0219/h), clearance (26.6 ml/min), and volume of distribution (83 L) all were significantly skewed and deviated significantly fron normal. After logarithmic transformation, the distributions of elimination rate constant, elimination half-life, and volume of distribution were consistent with normal; however, this was not the case for time of peak plasma concentration. Thus, the pharmacokinetic characteristics of oral diazepam are highly variable even in a relatively homogeneous population. Parametric statistical testing procedures and pharmacokinetic forecasting schemes may be improved by more precise delineation of the underlying distributions for pharmacokinetic variables.

Adolescent

The epidemiology of hyperlipoproteinemia in a Rumanian general population sample. Study of 7,085 cases.

Using a two stages screening method the prevalence in the general population of hyperlipoproteinemias (HLP), separated in the five types proposed by Fredrickson, Levy and Lees, and adopted by WHO has been studied. The study included 7,085 subjects of both sexes, aged 25-65 years, representing 84,52 % of a population taken at random within a district of Bucarest. HLP was found in 1,013 cases, i.e. 14,29 % of the investigated population. 48.37 % were men and 51.63 % women. The prevalence of HLP was lowest in the first decace of age studied (25-35 years) and highest in the last two decades (45-65 years). Overweight was more frequently encountered in these patients (64.46 %) than in the total population (32.3 %). Of the 1,013 cases with HLP, 42.35 % (6.05 % of the total population) were of type IV, 27.05 % (3.86 % of the total population) of type II-b, 22.80 % (3.26 % of the total population) of type II-a, 4.74 % (0.67 % of the total population) of the type III and 3.06 % (0.43 % of the total population) of the type V. 22.70 % of the HLP patients were considered primary familial HLP, 66.54 % primary non-familial HLP and 10.76 % secondary HLP; IN 109 secondary HLP, the most frequently encountered disease was diabetes mellitus (42.20 %), followed by hypothyroidism (24.77 %), alcoholism (12.84 %), obstructive liver diseases (9.17 %), pancreatitis (5.50 %), nephrotic syndrome (2.75 %) and treatment with estrogens and steroids (2.75 %).

Adult

[A random sample study of therapeutic effect of beta-receptor blocking agents in patients with subarachnoid hemorrhage].

The Study on the treatment of 50 cases of subarachnoid hemorrhage (by applying beta-receptor blocking drug propranolol) and the control group of 55 cases revealed that the mortalities of the therapeutic group and the control group were respectively 4% and 9.2% (P less than 0.05) the incidences of the cerebral vasospasm were 2% and 10.6% (P less than 0.01) and those of the abnormal electrocardiograms were 6% and 21.8% (P less than 0.01). The differences between the two group were significant. The function of propranolol may be associated with the sudden increase of catecholamine after subarachnoid haemorrhage and there for the drug has the function of protection of the cardiac muscle and prevention of the cerebral vasospasm.

Adolescent

[A sampling study in 6 Lombardy hospitals on the knowledge possessed by nurses on the risks associated with accidental exposure to patient blood].

In six hospitals of the Lombardy Region 3.000 questionnaires have been circulated to evaluate the degree of awareness and information of the personnel with respect to the behavior to be adopted at the occasion of an accidental exposure to the blood of patients. Up to 63% (1896) of the original questionnaires were available for the analysis. The mean of the responses which can be considered correct for the professional level involved, does not seem to be an area-dependent variable. The number of correct answers declines proportionally as the age increases. A drastic difference in the degree of knowledge is documented to exist between general and professional nurses, who however are exposed to the same risk. The ignorance on the role and choice of disinfectants and on the way of disposing of used needles is particularly striking. The results of the questionnaire, mainly when they are referred to each hospital, are easily utilizable to finalize and support information and training programs.

Accidents, Occupational

Sample size calculations for ophthalmologic studies.

Sample size calculations are shown for some common ophthalmologic study designs in which two treatments are to be compared. Included are the following three designs: 1, only one eye per subject; 2, both eyes, with each eye assigned to a different treatment; and 3, both eyes undergoing a common treatment. Continuous and binary outcomes are considered. The correlation between eyes is accounted for in the computations using a simple correction factor. For design 3, the formulas allow for a mixture of single-eye and double-eye eligible subjects. A computer program that performs the calculations is available.

Humans