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PubMed1989

Role of community pharmacies in prevention of AIDS among injecting drug misusers: findings of a survey in England and Wales.

OBJECTIVE: To determine the current and potential roles of community pharmacists in the prevention of AIDS among misusers of injected drugs. DESIGN: Cross sectional postal survey of a one in four random sample of registered pharmacies in England and Wales. SETTING: Project conducted in the addiction research unit of the Institute of Psychiatry, London. SUBJECTS: 2469 Community pharmacies in the 15 regional health authorities in England and Wales. MAIN OUTCOME MEASURES: Willingness of pharmacists to sell injecting equipment to known or suspected misusers of drugs; pharmacists' attitudes to syringe exchange schemes, keeping a "sharps" box for use by misusers of drugs, and offering face to face advice and leaflets; and opinions of community pharmacists on their role in AIDS prevention and drug misuse. RESULTS: 1946 Questionnaires were returned, representing a response rate of 79%. This fell short of the target of one in four pharmacies in each family practitioner committee area in England and Wales, and total numbers of respondents were therefore weighted in inverse proportion to the response rate in each area. The findings disclosed a substantial demand for injecting equipment by drug misusers. After weighting of numbers of respondents an estimated 676 of 2434 pharmacies were currently selling injecting equipment and 65 of 2415 (3%) were participating in local syringe exchange schemes; only 94 of 2410 pharmacies (4%) had a sharps box for used equipment. There was a high degree of concern among pharmacists about particular consequences of drug misusers visiting their premises, along with a widespread acceptance that the community pharmacist had an important part to play. CONCLUSIONS: Promoting the participation of community pharmacists in the prevention of AIDS among misusers of injected drugs is a viable policy, but several problems would need to be overcome before it was implemented.

Acquired Immunodeficiency Syndrome↗
PubMed1992

Paralytic poliomyelitis in England and Wales, 1985-91.

OBJECTIVES: To ascertain all cases of paralytic poliomyelitis in England and Wales during 1985-91 and to determine the source of infection in each case. DESIGN: Descriptive study of cases reported between 1985 and 1991. SETTING: All health districts in England and Wales. SUBJECTS: Patients normally resident in England and Wales whose clinical features were consistent with paralytic poliomyelitis or with laboratory evidence of recent poliovirus infection and compatible symptoms. MAIN OUTCOME MEASURES: Clinical, epidemiological, and laboratory features in identified cases. RESULTS: Of 54 suspected cases of poliomyelitis, 33 were excluded, leaving 21 cases, of which 13 were vaccine associated (nine recipient and four contact) cases, five were imported cases, and three were cases whose source of infection was unknown. No cases due to indigenous wild polioviruses were identified; two were imported cases due to wild viruses. One patient died during the acute phase of the illness, and two children with previously unrecognised severe congenital immune deficiency died between one and two months after the onset of paralysis after the first or second dose of oral polio vaccine. The estimated risk of vaccine associated paralysis is 1.46 per million for the first dose, 0.49 for the second, zero for the third and fourth doses, and 0.33 for the fifth. CONCLUSIONS: Indigenous wild poliovirus seems to have been eradicated, although wild virus may be imported; improved surveillance of suspected cases including immediate notification and characterisation of the virus to ensure that eradication is maintained is essential.

Adolescent↗
PubMed1994

Serum screening for Down's syndrome: experiences of obstetricians in England and Wales.

OBJECTIVES: To assess the experiences of obstetricians in England and Wales of serum screening for Down's syndrome. DESIGN: Postal questionnaire survey. SUBJECTS: Questionnaires were sent to all practising obstetricians in England and Wales with nonacademic appointments who had not participated in an earlier (randomly sampled) survey of obstetricians' attitudes (n = 555). Responses were received from 393 (71%), of which 351 were analysed. The data represent about one third of obstetric consultants in England and Wales. MAIN OUTCOME MEASURES: The extent of use of serum screening for Down's syndrome, and the problems encountered. RESULTS: Serum screening for Down's syndrome was being offered on some basis by virtually all obstetricians in the survey. Nearly half the sample said that they did not have adequate resources for counselling all the women to whom screening was offered. Many problems were reported, which in all cases were more common than equivalent problems encountered with serum screening for neural tube defects. Over 80% (289) said that women not understanding the test was a problem. CONCLUSIONS: There is considerable confusion associated with serum screening for Down's syndrome. The precedent of serum screening for neural tube defects does not seem to have lessened the problems experienced, rather the contrary. Many obstetricians report inadequate resources for counselling, which is consistent with the high prevalence of problems associated with women not understanding the test. There is an urgent need to consider what counselling should consist of and who should undertake it and to ensure that necessary resources are available.

Anxiety↗
PubMed1994

Wartime evacuation and mortality from childhood leukaemia in England and Wales in 1945-9.

OBJECTIVE: To discover whether the wartime government evacuation of children from London and other population centres to rural districts was associated with any increase in childhood leukaemia. DESIGN: Observational study of mortality from leukaemia among the childhood population of England and Wales in relation to the unique population movements during the second world war. The 476 rural districts of England and Wales were ranked according to the ratio of government evacuees (two thirds of them children) to local children in September 1941. The districts were divided into three categories, each with similar numbers of children in 1947 but with different ratios of evacuees to local children ("low," "intermediate," "high"). Mortality from childhood leukaemia was examined in these three rural categories in 1945-9. Urban areas were also examined according to their exposure to evacuees. SETTING: Local authority areas of England and Wales. SUBJECTS: Children aged under 15. RESULTS: 47% excess of leukaemia at ages 0-14 years occurred in 1945-9 in the rural "high" category for evacuees relative to the "low" category, with a significant trend across the three categories. There were increases in both the 0-4 and 5-14 year age groups, but these were larger in the older age group. Rates 25% lower than average occurred in rural areas with few evacuees. CONCLUSION: These findings suggest that wartime evacuation increased the incidence of childhood leukaemia in rural areas and that other forms of population mixing may have contributed to the increases in past decades. Overall, they add to the appreciable evidence for an infective basis in childhood leukaemia.

Adolescent↗
PubMed1996

Association between incidence of non-Hodgkin's lymphoma and solar ultraviolet radiation in England and Wales.

OBJECTIVES: To examine whether the incidence of non-Hodgkin's lymphoma in different areas of England and Wales is associated with levels of solar ultraviolet radiation. DESIGN: Geographically based study examining the association between incidence of non-Hodgkin's lymphoma and estimated levels of solar ultraviolet radiation, controlling for social class and employment in agriculture. SETTING: 59 counties in England and Wales. SUBJECTS: All registered cases of non-Hodgkin's lymphoma during the period 1968-85. MAIN OUTCOME MEASURE: Age and sex adjusted odds ratio for non-Hodgkin's lymphoma in each county. RESULTS: Incidence of non-Hodgkin's lymphoma was significantly associated with solar ultraviolet radiation levels (P < 0.001), even after social class and employment in agriculture were controlled for (P = 0.004). In a comparison of counties in the highest and lowest quarters of solar ultraviolet radiation, the relative risk of non-Hodgkin's lymphoma was 1.27 (95% confidence interval 1.24 to 1.29), rising to 1.34 (1.32 to 1.37) after adjustment for social class and employment in agriculture. CONCLUSIONS: The incidence of non-Hodgkin's lymphoma in different areas of England and Wales is positively associated with levels of solar ultraviolet radiation. These results are consistent with the hypothesis that exposure to solar ultraviolet radiation increases the risk of non-Hodgkin's lymphoma.

Agricultural Workers' Diseases↗
PubMed1996

Congenital anterior abdominal wall defects in England and Wales 1987-93: retrospective analysis of OPCS data.

OBJECTIVES: Analysis of incidence and characteristics of congenital abdominal wall defects, with special reference to the differences between the incidence of gastroschisis and exomphalos (omphalocele). DESIGN: Retrospective analysis using data from the Office of Population Censuses and Surveys (recoded to differentiate exomphalos and gastroschisis) and the National Congenital Malformation Notification Scheme. SETTING: England and Wales, 1987 to 1993. RESULTS: 1043 congenital anterior abdominal wall defects were notified within the seven year study period. Of these, 539 were classified as gastroschisis, 448 as exomphalos, 19 as "prune belly syndrome," and 37 as "unclassified." Gastroschisis doubled in incidence from 0.65 in 1987 to 1.35 per 10,000 total births in 1991, with little further change; the incidence of exomphalos decreased from 1.13 to 0.77 per 10000 births. The overall incidence of notified congenital abdominal wall defects was 2.15 per 10000 total births. Gastroschisis was associated with a lower overall maternal age than exomphalos and with a significantly lower proportion of additional reported congenital malformations (5.0%) than in the cohort with exomphalos (27.4%) (odds ratio 0.14, 95% confidence interval 0.09 to 0.22; P < 0.001). The sex ratio of the two cohorts was the same. The incidence of gastroschisis and exomphalos was higher in the northern regions of England than in the south east of the country. CONCLUSIONS: The national congenital malformation notification system showed an increasing trend in the incidence of fetuses born with gastroschisis and a progressive decreasing incidence of exomphalos in England and Wales between 1987 and 1993. Although the reasons for this are likely to be multifactorial, a true differential change seems likely. The observed increase in incidence of gastroschisis relative to exomphalos and the differentiation in maternal age have implications for resource management within the NHS and warrant further epidemiological monitoring. Regional differences may be due to a dietary or environmental factor, which requires further study.

Abdominal Muscles↗
PubMed1998

Incidence of seroconversion to positivity for hepatitis C antibody in repeat blood donors in England, 1993-5.

OBJECTIVE: To estimate the rate of seroconversion to positivity for hepatitis C antibody in repeat blood donors in England and to describe the probable routes of infection in these donors. DESIGN: Retrospective survey of blood donors becoming positive for hepatitis C antibody and of the results of donation testing. SETTING: The 14 blood centres in England. SUBJECTS: All repeat donors giving blood between January 1993 and December 1995. MAIN OUTCOME MEASURES: Number of donors developing hepatitis C between donations during the three years of testing for hepatitis C antibody at English blood centres and the rate of seroconversion among repeat blood donors. Probable routes of infection. RESULTS: 14 donors during 1993-5 fulfilled the case definition for seroconversion to positivity for hepatitis C antibody. The estimated seroconversion rate for infection with hepatitis C in repeat donors was 0.26 per 100 000 person years (95% confidence interval 0.15 to 0.43). Counselling after diagnosis found that four of these donors had risk factors specified in the criteria excluding people from giving blood but these factors had not come to light before donation. Another of the donors who seroconverted had a risk factor that has since been included in the exclusion criteria. Heterosexual intercourse was considered to be the most likely route of infection for five of the 14 donors. CONCLUSIONS: The rate of seroconversion for positivity to hepatitis C antibody in repeat blood donors in England was extremely low. During 1993-5 fewer than 1 in 450 000 donations were estimated to have come from repeat donors who had become positive for hepatitis C antibody since the previous donation.

Adolescent↗
PubMed1999

Universal HIV screening of pregnant women in England: cost effectiveness analysis.

OBJECTIVE: To estimate the cost effectiveness of universal, voluntary HIV screening of pregnant women in England. DESIGN: Cost effectiveness analysis. Cost estimates of caring for HIV positive children were based on the stage of HIV infection and calculated using data obtained from a London hospital between 1986 and 1996. These were combined with estimates of the health benefits and costs of antenatal screening so that the cost effectiveness of universal, voluntary antenatal screening for HIV infection in England could be estimated. MAIN OUTCOME MEASURES: Lifetime, direct costs of medical care of childhood HIV infection; life years gained as a result of the screening programme; net cost per life year gained for different pretest counselling costs; and different prevalence rates of pregnant women who were unaware that they were HIV positive. RESULTS: Estimated direct lifetime medical and social care costs of childhood HIV infection were pound178 300 using a 5% discount rate for time preference (1995-6 prices). In high prevalence areas screening pregnant women for HIV is estimated to be a cost effective intervention with a net cost of less than pound4000 for each life year gained. For areas with comparatively low prevalence rates, cost effectiveness could be less than pound20 000 per life year gained, depending on the number of pregnant women who are unaware that they are infected and local screening costs. CONCLUSIONS: Our results confirm recent recommendations that universal, voluntary antenatal HIV screening should be implemented in the London area. Serious consideration of the policy should be given for other areas in England depending on local prevalence and screening costs.

AIDS Serodiagnosis↗
PubMed2000

Derivation of a needs based capitation formula for allocating prescribing budgets to health authorities and primary care groups in England: regression analysis.

OBJECTIVE: To develop a weighted capitation formula for setting target allocations for prescribing expenditures for health authorities and primary care groups in England. DESIGN: Regression analysis relating prescribing costs to the demographic, morbidity, and mortality composition of practice lists. SETTING: 8500 general practices in England. SUBJECTS: Data from the 1991 census were attributed to practice lists on the basis of the place of residence of the practice population. MAIN OUTCOME MEASURES: Variation in age, sex, and temporary resident originated prescribing units (ASTRO(97)-PUs) adjusted net ingredient cost of general practices in England for 1997-8 modelled for the impact of health and social needs after controlling for differences in supply. RESULTS: A needs gradient based on the four variables: permanent sickness, percentage of dependants in no carer households, percentage of students, and percentage of births on practice lists. These, together with supply characteristics, explained 41% of variation in prescribing costs per ASTRO(97)-PU adjusted capita across practices. The latter alone explained about 35% of variation in total costs per head across practices. CONCLUSIONS: The model has good statistical specification and contains intuitively plausible needs drivers of prescribing expenditure. Together with adjustments made for differences in ASTRO(97)-PUs the model is capable of explaining 62% (35%+0.65% (41%)) of variation in prescribing expenditure at practice level. The results of the study have formed the basis for setting target budgets for 1999-2000 allocations for prescribing expenditure for health authorities and primary care groups.

Budgets↗
PubMed2004

Paediatric cardiac surgical mortality in England after Bristol: descriptive analysis of hospital episode statistics 1991-2002.

OBJECTIVE: To describe trends in mortality of open cardiac surgery in children in Bristol and England since 1991. DESIGN: Retrospective analysis of hospital episode statistics data. SETTING: All open cardiac surgery of children in England. POPULATION: Patients younger than 16 undergoing open cardiac surgical procedures in England between April 1991 and March 2002. Three time periods were defined: epoch 3 (April 1991 to March 1995), epoch 5 (April 1996 to March 1999), epoch 6 (April 1999 to March 2002). MAIN OUTCOME MEASURE: Mortality in hospital within 30 days of a cardiac procedure. RESULTS: We identified 5221 open operations between April 1996 and March 2002 in children under 1 year and 6385 in children aged 1-15 years. Mortality for all centres combined fell from 12% in epoch 3 to 4% in epoch 6. Mortality in children under 1 year at Bristol fell from 29% (95% confidence interval 21% to 37%) in epoch 3 to 3% (1% to 6%) in epoch 6, below the national average. The reduction in mortality did not seem to be due to fewer high risk procedures or an increase in the numbers of low risk cases. Oxford had a significantly higher mortality than the national average in all three epochs (11% (5% to 18%) in epoch 6), which was not affected by adjusting for procedure or the inclusion of cases with missing outcomes. CONCLUSIONS: At Bristol, mortality for open operations in children aged under 1 year has fallen markedly, to below the national average. Nationwide mortality has also fallen. Improved quality of care may account for the drop in mortality, through new technologies or improved perioperative and postoperative care, or both.

Adolescent↗
PubMed1998

Compiling a national register of babies born with anophthalmia/microphthalmia in England 1988-94.

AIM: To describe the prevalence of anophthalmia/microphthalmia in babies born in England 1988-94, as well as their overall survival, and the incidence of associated eye and non-eye malformations; to determine the usefulness of different sources of medical and health service information for establishing a retrospective register of anophthalmia/microphthalmia. METHODS: Multiple sources for initial (retrospective) case ascertainment were surveyed, followed by questionnaires to clinicians to establish severity, associated malformations, and aetiology for England, 1988-94. The population surveyed was all births in England for this time period (4,570,350 births). Cases included live births, stillbirths, or terminations after prenatal diagnosis of congenital anomaly, with anophthalmia/microphthalmia, with or without other malformations and syndromes. Trisomy 13 was subsequently excluded. RESULTS: The proportion of cases notified by any one information source was not more than 26% (Office for National Statistics Register 22%, paediatricians 26%, district sources 25%). Sixty nine per cent of cases (51% of severe cases) were notified by only one source. A total of 449 cases were reported, prevalence 1.0 per 10,000 births. The prevalence was stable over time, although the proportion notified by clinicians rose in more recent years. Thirty four per cent of affected babies had mild microphthalmia. Of those with severe anophthalmia/microphthalmia, 51% were bilateral, other eye malformations were present in 72%, non-eye malformations in 65%, and a "known aetiology" was attributed in 22%. Three quarters of those severely affected survived infancy. CONCLUSIONS: Despite high response rates from the sources of information contacted, the lack of duplication between sources indicates the difficulties of retrospective ascertainment and the need for multiple sources when establishing a register. Anophthalmos/microphthalmos is usually associated with other malformations. Most cases are of unknown aetiology.

Abnormalities, Multiple↗
PubMed2001

Neonatal meningitis in England and Wales: 10 years on.

OBJECTIVES: To determine the incidence of neonatal meningitis in England and Wales. DESIGN: A national postal survey using the British Paediatric Surveillance Unit (BPSU) card scheme supplemented by information from other sources. SETTING: England and Wales 1996-1997. SUBJECTS: A total of 274 babies less than 28 days of age who were treated for meningitis. RESULTS: The incidence of neonatal meningitis in England and Wales has not changed since our previous study in 1985-1987. However, the acute phase mortality has fallen from 19.8% in 1985-1987 to 6.6% in this study. Group B streptococci (42%) and Escherichia coli (16%) remain the most common infecting microorganisms. Eight of 69 (12%) babies with group B streptococci and 4/26 (15%) with E coli died. Antibiotic regimens based on the third generation cephalosporins, notably cefotaxime, were most commonly used (84%). The BPSU scheme identified 72% of cases during the study period. Most cases of viral meningitis were not reported through the BPSU. Less than a third of samples from aseptic meningitis were examined for viruses; 56% of these were positive. CONCLUSIONS: Although the incidence of neonatal meningitis remains unchanged, mortality from this infection has fallen significantly. If this improvement is maintained as reflected in the level of sequelae at 5 years of age, then the fear surrounding meningitis during the neonatal period will have been dramatically reduced.

Anti-Infective Agents↗
PubMed2001

Increase in mortality rates from intrahepatic cholangiocarcinoma in England and Wales 1968-1998.

BACKGROUND: The age standardised mortality rate per 100 000 population for all causes of liver tumours (International Classification of Disease 9 (ICD-9) 155) has almost doubled in England and Wales during the period 1979-1996. We further analysed the mortality statistics to determine which anatomical subcategories were involved. METHODS: Mortality statistics for liver tumours of ICD-9 155, 156, and subcategories, and for tumours of the pancreas (ICD-9 157), in England and Wales were investigated from the Office for National Statistics, London, from 1968 to 1996 inclusive. Data for 1997 and 1998 were also available on intrahepatic cholangiocarcinomas. RESULTS: There has been a marked rise in age standardised mortality rates for intrahepatic cholangiocarcinoma. Since 1993, it represents the commonest recorded cause of liver tumour related death in England and Wales. This is evident in age groups older than 45 years. In contrast, mortality trends from other primary liver tumours, including hepatocellular carcinoma, were unremarkable. CONCLUSIONS: The observed increase in mortality from intrahepatic cholangiocarcinoma may represent better case ascertainment and diagnosis due to improved diagnostic imaging, use of image guided biopsies, or increased use of ERCP. However, the trend started before ERCP was introduced nationally, mortality rates have continued to increase steadily thereafter, and there is no clear evidence that diagnostic transfers easily explains the findings. Alternatively, these observations may represent a true increase in intrahepatic bile duct tumours. Epidemiological studies are required to determine whether there is any geographical clustering of cases around the UK.

Adult↗
PubMed2001

Trends in the prevalence and management of atrial fibrillation in general practice in England and Wales, 1994-1998: analysis of data from the general practice research database.

OBJECTIVE: To determine the prevalence of atrial fibrillation in England and Wales, and examine trends in its treatment with warfarin and aspirin between 1994 and 1998. DESIGN: Analysis of data from the general practice research database. SETTING: England and Wales. PATIENTS: 1.4 million patients registered with 211 general practices. MAIN OUTCOME MEASURES: Age and sex specific prevalence rates of atrial fibrillation; percentage of patients with atrial fibrillation treated with oral anticoagulants or aspirin. RESULTS: The prevalence of atrial fibrillation in 1998 was 12.1/1000 in men and 12.7/1000 in women. Prevalence increased from less than 1/1000 in under 35 year olds to over 100/1000 in those aged 85 years and over. There was a 22% increase in the age standardised prevalence of atrial fibrillation in men and a 14% increase in women between 1994 and 1998. The percentage of patients prescribed oral anticoagulants increased from 20% to 34% in men and from 17% to 25% in women. The percentage of men with atrial fibrillation prescribed aspirin increased from 26% to 36%, and the percentage of women increased from 24% to 36%. Applying the age and sex specific prevalence and treatment rates to the population gives an estimate of around 650 000 cases of atrial fibrillation in England and Wales. The greatest number of cases occurs in the 75-84 year old age group. CONCLUSIONS: The number of patients in the community with identified atrial fibrillation is increasing. There has also been a pronounced increase in the percentage of patients with atrial fibrillation prescribed oral anticoagulants or aspirin.

Administration, Oral↗
PubMed2003

The detection of Simian virus 40 in mesotheliomas from New Zealand and England using real time FRET probe PCR protocols.

AIMS: To detect Simian virus 40 (SV40) DNA in mesotheliomas from New Zealand and from England using novel real time FRET probe polymerase chain reaction (PCR) protocols. METHODS: Twenty four mesotheliomas from New Zealand (Central North Island) and 32 mesotheliomas from England (Greater Manchester region) were examined. Two real time FRET probe PCR protocols were optimised and their analytical sensitivity compared using dilutions of SV40 DNA. A conventional SV40 large tumour antigen protocol with detection by probe hybridisation and chemiluminescent Southern blotting was also optimised. RESULTS: Both real time PCR protocols had the same analytical sensitivity, detecting down to 10(-6) pg of SV40 DNA for each reaction, approximately one SV40 copy. All of the 56 mesothelioma samples contained amplifiable beta globin DNA, but none contained amplifiable SV40 DNA with the conventional large T antigen PCR-Southern blotting protocol, or the two real time FRET probe PCR protocols. The positive and negative controls gave the expected results. There was no evidence of inhibition. CONCLUSIONS: There is abundant evidence in the literature for the presence of SV40 in mesotheliomas. However, this study found no evidence of SV40 in mesotheliomas from England and New Zealand. The extensive use of SV40 contaminated polio vaccine in New Zealand does not seem to have resulted in SV40 associated mesotheliomas.

DNA, Viral↗
PubMed2006

Changes in socioeconomic inequalities in census measures of health in England and Wales, 1991-2001.

STUDY OBJECTIVES: To investigate changes in socioeconomic inequalities in census measures of health in England and Wales between 1991 and 2001. DESIGN: Indirect standardisation was used to calculate age standardised rates of limiting long term illness and permanent sickness in men and women in all residential wards in England and Wales in 1991 and 2001. The socioeconomic position of each ward was determined using Townsend deprivation scores. SETTING: All residential wards in England and Wales in 1991 and 2001. PARTICIPANTS: All people aged 16-65 who provided census information in the 1991 or 2001 censuses. MAIN RESULTS: There was strong evidence that Townsend deprivation score quintile could predict both logged standardised permanent sickness rate and logged standardised limiting long term illness rate. There was evidence that socioeconomic inequalities in standardised limiting long term illness rates decreased between 1991 and 2001 in both men and women and that socioeconomic inequalities in standardised permanent sickness rates decreased in women but increased in men between 1991 and 2001. CONCLUSIONS: As permanent sickness rates seem to reflect labour market accessibility, this study may have found evidence that socioeconomic inequalities in self reported morbidity decreased but inequalities in labour market participation in men increased between 1991 and 2001.

Adolescent↗
PubMed1980

Drug prescribing by GPs in Wales and in England.

There is a large excess in prescribing costs by GPs in Wales compared with England. This excess amounts to about 30%, equivalent at present to over pounds 11 m a year. The pattern of drug prescribing by GPs and of patient consultation was studied in random samples of electors in Cardiff and Bristol. Overall, more subjects in Cardiff had received prescriptions, and the average number of scripts for each person was higher than in England in the same period. The pattern for consultations was similar. For both prescriptions and consultations the rates were higher in Wales and the difference from those in England seemed to be greater for women than for men. There was no consistent difference between the two cities in the proportions of those who had consulted who received a script, nor was there any evidence that subjects in Cardiff received more prescriptions without a consultation. In both cities similar proportions of subjects bought drugs from chemists without a prescription.

Adult↗
PubMed1992

Trends in body mass index in young adults in England and Scotland from 1973 to 1988.

STUDY OBJECTIVE: The aim was to determine whether the mean body mass index of young adults in England and Scotland had increased during the years 1973 to 1988. DESIGN: The study was an analysis of reported heights and weights for parents of children participating in a mixed longitudinal study of children's growth. SETTING: 20 study areas (16 in England and four in Scotland) were selected by stratified random sampling. SUBJECTS: Subjects were parents of 5229 children who were new entrants to the study in the years 1973-6 and 1982-8. After excluding cases containing missing values on continuous variables, data for 4568 (87%) women (mean age 30 years) and 4029 (77%) men (mean age approximately 32 years) were analyzed. MEASUREMENTS AND MAIN RESULTS: Changes in weight for height over time were determined using body mass index as dependent variable, adjusting for age, social class, family size, and study area. In women, mean body mass index showed an annual increase of 0.10 (95% CI 0.03 to 0.17%) per year of study. Body mass index also increased with increasing age and family size and was greatest for women with husbands in manual occupations. The secular trend in body mass index in women was not explained by changes in the distribution of these variables. The proportion of women with BMI greater than 25 kg/m2 increased over the study period. In men the secular trend in body mass index was not quite significant in this age group [annual increase 0.05% (-0.01 to 0.12%)]. CONCLUSIONS: There has been an increase in the body mass index of young women in England and Scotland over the years 1973 to 1988. This increase was not explained by changes in the age, parity, social class of the subjects sampled. Evidence of a trend in men was not found.

Age Factors↗