Abstract:
OBJECTIVE:To investigate estimation of calorie (energy) content of meals from fast food restaurants in adults, adolescents, and school age children. DESIGN:Cross sectional study of repeated visits to fast food restaurant chains. SETTING:89 fast food restaurants in four cities in New England, United States: McDonald's, Burger King, Subway, Wendy's, KFC, Dunkin' Donuts. PARTICIPANTS:1877 adults and 330 school age children visiting restaurants at dinnertime (evening meal) in 2010 and 2011; 1178 adolescents visiting restaurants after school or at lunchtime in 2010 and 2011. MAIN OUTCOME MEASURE:Estimated calorie content of purchased meals. RESULTS:Among adults, adolescents, and school age children, the mean actual calorie content of meals was 836 calories (SD 465), 756 calories (SD 455), and 733 calories (SD 359), respectively. A calorie is equivalent to 4.18 kJ. Compared with the actual figures, participants underestimated calorie content by means of 175 calories (95% confidence interval 145 to 205), 259 calories (227 to 291), and 175 calories (108 to 242), respectively. In multivariable linear regression models, underestimation of calorie content increased substantially as the actual meal calorie content increased. Adults and adolescents eating at Subway estimated 20% and 25% lower calorie content than McDonald's diners (relative change 0.80, 95% confidence interval 0.66 to 0.96; 0.75, 0.57 to 0.99). CONCLUSIONS:People eating at fast food restaurants underestimate the calorie content of meals, especially large meals. Education of consumers through calorie menu labeling and other outreach efforts might reduce the large degree of underestimation.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Block JP,Condon SK,Kleinman K,Mullen J,Linakis S,Rifas-Shiman S,Gillman MWdoi
10.1136/bmj.f2907subject
Has Abstractpub_date
2013-05-23 00:00:00pages
f2907eissn
0959-8138issn
1756-1833journal_volume
346pub_type
杂志文章abstract:OBJECTIVE:To examine the protective efficacy of measles vaccination in infants in a low income country before 9 months of age. DESIGN:Randomised clinical trial. PARTICIPANTS:1333 infants aged 4.5 months: 441 in treatment group and 892 in control group. SETTING:Urban area in Guinea-Bissau. INTERVENTION:Measles vacci...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.a661
更新日期:2008-07-24 00:00:00
abstract:OBJECTIVE:To describe risk factors for infantile colic. DESIGN:Questionnaire administered by health visitors. SETTING:Sheffield. SUBJECTS:Mothers of 76,747 infants born between 1 August 1975 and 31 May 1988, interviewed when the infant was 1 month old. MAIN OUTCOME MEASURES:Reporting of infantile colic and its dura...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.314.7090.1325
更新日期:1997-05-03 00:00:00
abstract::Doctors and other health professionals in developing countries are missing out on relevant information about health. A lot of the information they need is available in the developed countries, and those who have it are happy to share it with them. But transporting information, like food or medicines, from one part of ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.309.6959.939
更新日期:1994-10-08 00:00:00
abstract::For the past 18 years there has been a proliferation of European committees, boards, associations, colleges, and working groups set up to promote the harmonisation of specialist training in Europe. It has been taken as read that this objective is desirable. The fact that these bodies have achieved remarkably little is...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7000.297
更新日期:1995-07-29 00:00:00
abstract:OBJECTIVE:To test whether a drug review and symptom self management and lifestyle advice intervention by community pharmacists could reduce hospital admissions or mortality in heart failure patients. DESIGN:Randomised controlled trial. SETTING:Home based intervention in heart failure patients. PARTICIPANTS:293 patie...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.39164.568183.AE
更新日期:2007-05-26 00:00:00
abstract:OBJECTIVES:To estimate life expectancy for people with HIV undergoing treatment compared with life expectancy in the general population and to assess the impact on life expectancy of late treatment, defined as CD4 count <200 cells/mm(3) at start of antiretroviral therapy. DESIGN:Cohort study. SETTING:Outpatient HIV c...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.d6016
更新日期:2011-10-11 00:00:00
abstract:OBJECTIVES:To assess the performance of a panel of common single nucleotide polymorphisms (genotypes) associated with type 2 diabetes in distinguishing incident cases of future type 2 diabetes (discrimination), and to examine the effect of adding genetic information to previously validated non-genetic (phenotype based)...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.b4838
更新日期:2010-01-14 00:00:00
abstract::The International AIDS Vaccine Initiative, based in New York, US, was established in 1996 to develop a safe and affordable AIDS vaccine. It is funded by a number of large foundations and charities, the British government, and the World Bank. The Initiative's first 2 large projects, 2 research programs into a vaccine...
journal_title:BMJ (Clinical research ed.)
pub_type: 新闻
doi:10.1136/bmj.317.7172.1543
更新日期:1998-12-05 00:00:00
abstract:OBJECTIVE:To assess the effectiveness of an antenatal service using community based breastfeeding peer support workers on initiation of breast feeding. DESIGN:Cluster randomised controlled trial. SETTING:Community antenatal clinics in one primary care trust in a multiethnic, deprived population. PARTICIPANTS:66 ante...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.b131
更新日期:2009-01-30 00:00:00
abstract:OBJECTIVE:To determine whether peer review medical audit in a primary care setting changes clinical behaviour in relation to the management of hypertension. DESIGN:Review of medical records in general practices to identify hypertensive patients followed up by assessment of the pre-educational and post-educational mana...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.314.7085.942
更新日期:1997-03-29 00:00:00
abstract:OBJECTIVE:To determine the efficacy of high dose folic acid supplementation for prevention of pre-eclampsia in women with at least one risk factor: pre-existing hypertension, prepregnancy diabetes (type 1 or 2), twin pregnancy, pre-eclampsia in a previous pregnancy, or body mass index ≥35. DESIGN:Randomised, phase III...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.k3478
更新日期:2018-09-12 00:00:00
abstract:OBJECTIVES:To examine the effects of physical work environment on long term sickness absence and to investigate interaction between physical and psychosocial risk factors. DESIGN AND SETTING:Prospective cohort study of long term sickness absence among employees in Denmark. PARTICIPANTS:5357 employees interviewed in 2...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.38731.622975.3A
更新日期:2006-02-25 00:00:00
abstract::The aim of the study was to assess whether increased energy expenditure causes the negative energy balance (tissue catabolism) commonly seen in children with insulin dependent (type I) diabetes. Resting metabolic rate and thermogenesis induced by adrenaline were measured in five healthy children and 14 children with t...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.299.6697.487
更新日期:1989-08-19 00:00:00
abstract:OBJECTIVE:To examine the potential effectiveness and efficiency of different guidelines for statin treatment to reduce deaths from coronary heart disease in the Canadian population. DESIGN:Modelled outcomes of screening and treatment recommendations of six national or international guidelines--from Canada, Australia, ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.38849.487546.DE
更新日期:2006-06-17 00:00:00
abstract:OBJECTIVE:To determine if sufficient evidence exists to support the use of magnetic resonance angiography as a means of selecting patients with recently symptomatic high grade carotid stenosis for surgery. DESIGN:Systematic review of published research on the diagnostic performance of magnetic resonance angiography, 1...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.324.7331.198
更新日期:2002-01-26 00:00:00
abstract::The studies reviewed here show that the duration and severity of individual episodes of back pain can be lessened, reducing recurrences and their cost in terms of suffering and lost work. Frank examines differential diagnosis; acute, chronic, and intractable pain; and service implications. Modern management emphasises...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.306.6882.901
更新日期:1993-04-03 00:00:00
abstract:OBJECTIVE:To compare the implications of four widely used cholesterol screening and treatment guidelines by applying them to a population in the United Kingdom. DESIGN:Guidelines were applied to population based data from a cross sectional study of cardiovascular disease and risk factors. SETTING:Newcastle upon Tyne,...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.317.7166.1125
更新日期:1998-10-24 00:00:00
abstract:OBJECTIVES:To identify and calculate the prevalence of spin in studies of spin. DESIGN:Meta-research analysis (research on research). SETTING:35 studies of spin in the scientific literature. MAIN OUTCOME MEASURES:Spin, categorised as: reporting practices that distort the presentation and interpretation of results, c...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.l6202
更新日期:2019-12-18 00:00:00
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doi:10.1136/bmj.328.7430.22
更新日期:2004-01-03 00:00:00
abstract::Chronic insomnia is a common condition that affects people worldwide and has negative effects on patients' health and wellbeing. The treatment of insomnia can be complex and time consuming for patients and providers. Although behavioral interventions are the first line therapy, there are barriers to access for these t...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.i2123
更新日期:2016-07-06 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.38849.478299.7C
更新日期:2006-06-17 00:00:00
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更新日期:2020-11-25 00:00:00
abstract:OBJECTIVE:To determine whether the author's 20.9 lb (9.5 kg) carbon frame bicycle reduced commuting time compared with his 29.75 lb (13.5 kg) steel frame bicycle. DESIGN:Randomised trial. SETTING:Sheffield and Chesterfield, United Kingdom, between mid-January 2010 and mid-July 2010. PARTICIPANTS:One consultant in an...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.c6801
更新日期:2010-12-09 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.304.6830.816
更新日期:1992-03-28 00:00:00
abstract:OBJECTIVES:To evaluate the evidence for strategies to prevent falls or fractures in residents in care homes and hospital inpatients and to investigate the effect of dementia and cognitive impairment. DESIGN:Systematic review and meta-analyses of studies grouped by intervention and setting (hospital or care home). Meta...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.39049.706493.55
更新日期:2007-01-13 00:00:00
abstract:OBJECTIVE:To determine whether use of tinzaparin, a low molecular weight heparin introduced for prophylactic management of deep vein thrombosis, increases the risk of serious postoperative bleeding leading to a higher than expected 28 day readmission rate after discharge for hysterectomy. DESIGN:Retrospective case-con...
journal_title:BMJ (Clinical research ed.)
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doi:10.1136/bmj.38783.624444.55
更新日期:2006-04-08 00:00:00
abstract:OBJECTIVE:To evaluate the effects on suicidal behaviour of legislation limiting the size of packs of paracetamol and salicylates sold over the counter. DESIGN:Before and after study. SETTING:UK population, with detailed monitoring of data from five liver units and seven general hospitals, between September 1996 and S...
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pub_type: 杂志文章
doi:10.1136/bmj.322.7296.1203
更新日期:2001-05-19 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.g5219
更新日期:2014-08-26 00:00:00
abstract::Ruben Meerman and Andrew Brown explain why the answer might not be what you expect. ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.g7257
更新日期:2014-12-16 00:00:00
abstract:OBJECTIVE:To determine the implications of variation in mortality associated with use of weapons in different contexts. DESIGN:Literature review. SETTINGS:Armed conflicts and civilian mass shootings, 1929-96. MAIN OUTCOME MEASURE:Mortality from wounds. RESULTS:During the fighting of war the number of people wounded...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.319.7207.407
更新日期:1999-08-14 00:00:00