British medical journal (Clinical research ed.)
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Data from the Tucson epidemiological study of airways obstructive disease on smoking of non-tobacco cigarettes such as marijuana were analysed to determine the effect of such smoking on respiratory symptoms and pulmonary function. Among adults aged under 40, 14% had smoked non-tobacco cigarettes at some time and 9% were current users. ⋯ This effect on pulmonary function in male non-tobacco cigarette smokers was greater than the effect of tobacco cigarette smoking. These data suggest that non-tobacco cigarette smoking may be an important risk factor in young adults with respiratory symptoms or evidence of airways obstruction.
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Br Med J (Clin Res Ed) · Dec 1987
Randomized Controlled Trial Clinical TrialInterim discharge summaries: how are they best delivered to general practitioners?
All patients discharged from a medical ward during four months were randomly assigned to one of two groups. In one group the patients were given their interim discharge summary for delivery to their general practitioner by hand; in the other group the summary was posted by the hospital. ⋯ A mean (median) time of two (one) days elapsed before arrival when summaries were delivered by hand and a mean (median) of four and a half (four) days when they were posted; at least 55% of summaries delivered by hand arrived within one day of the day of discharge compared with 8% of those posted. If all interim discharge summaries were given to patients to deliver communication between hospitals and general practitioners would be accelerated and considerable savings might be made.
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The legal limit for drinking and driving in Britain is 80 mg/dl (17.4 mmol/l) of alcohol in the blood. This was chosen 20 years ago on the basis of studies that have recently been reanalysed. ⋯ It is suggested that the legal limit should be reduced from 80 mg/dl to 50 mg/dl (10.9 mmol/l) and random breath testing introduced as in most Nordic countries. A zero limit is proposed for learner and first year drivers, who are likely to have accidents even with low concentrations of alcohol in their blood.