Abstract：
:Measurement of physical activity in epidemiological studies is usually achieved by means of a questionnaire. Little work has been done to determine which questionnaire format has greater validity in an elderly population. In this study of elderly subjects, physical activity as reported in two self-administered questionnaires (A and B), which differed in format and length, were compared to activity reported in a 4 day diary. As compared with the diary, moderate/heavy activity was more accurately reported in Questionnaire A (mean difference 5 min), the longer more detailed questionnaire, than B (mean difference 170 min). Light activity was under reported in Questionnaire A (mean difference 68 min) and over reported in B (mean difference 88 min) as compared with the diary. In contrast, time spent sitting was more accurately reported in Questionnaire B (mean difference 40 min) than in A (mean difference 230 min) as compared with the diary. The longer more detailed questionnaire was the more accurate instrument for assessing moderate/heavy activity in this elderly population. The shorter questionnaire was more accurate for assessing time spent sitting.
journal_name
J Clin Epidemioljournal_title
Journal of clinical epidemiologyauthors
Cartmel B,Moon TEdoi
10.1016/0895-4356(92)90071-tsubject
Has Abstractpub_date
1992-08-01 00:00:00pages
877-83issue
8eissn
0895-4356issn
1878-5921pii
0895-4356(92)90071-Tjournal_volume
45pub_type
杂志文章abstract：:The basic objective of this paper is to evaluate an age-comorbidity index in a cohort of patients who were originally enrolled in a prospective study to identify risk factors for peri-operative complications. Two-hundred and twenty-six patients were enrolled in the study. The participants were patients with hypertensi...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(94)90129-5
更新日期：1994-11-01 00:00:00
abstract：OBJECTIVES:To investigate the application of the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach and the quality of evidence ratings in systematic reviews of complex interventions. STUDY DESIGN AND SETTING:This study examined all 40 systematic reviews published in three Cochrane Rev...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2016.03.014
更新日期：2016-10-01 00:00:00
abstract：:Numerous studies have shown that the symptoms of angina pectoris are more prevalent in women than men, than other manifestations of coronary heart disease, with the greatest discrepancies at younger ages. Variation in symptom reliability between genders could be a potential explanation for these differences. The Lipid...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(91)90009-x
更新日期：1991-01-01 00:00:00
abstract：BACKGROUND:The probability of a disease, given the result of two diagnostic tests, can be calculated by multiplying the odds of disease after the first test by the likelihood ratio of the second test. OBJECTIVE:To illustrate the error that occurs when calculating disease probability by combining the results of tests t...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2009.04.010
更新日期：2009-12-01 00:00:00
abstract：OBJECTIVE:To assess the extent to which meta-analysis publications of drugs and biologics focus on specific named agents or even only a single agent, and identify characteristics associated with such focus. STUDY DESIGN AND SETTING:We evaluated 499 articles with meta-analyses published in 2010 and estimated how many d...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2012.10.014
更新日期：2013-04-01 00:00:00
abstract：OBJECTIVES:Calibration is often thought to assess the bias of a clinical prediction rule. In particular, if the rule is based on a linear logistic model, it is often assumed that an overestimation of all coefficients results in a calibration slope less than 1 and an underestimation in a slope larger than 1. STUDY DESI...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2013.06.003
更新日期：2013-11-01 00:00:00
abstract：:The Apgar score is widely used for several purposes: to discriminate between infants who require resuscitation at birth and those who do not; to predict outcome; and to evaluate change in the condition of the newly born over the first minutes of life. Using published evidence of its clinical reliability and validity, ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(88)90100-x
更新日期：1988-01-01 00:00:00
abstract：:This article (Part II) and the preceding article (Part I) report the development of two clinical staging systems for HIV-infected individuals. The objective of the research reported here (Part II) was to construct a clinical staging system to predict survival in patients with AIDS. We analyzed data from VA Cooperative...
journal_title：Journal of clinical epidemiology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s0895-4356(97)00182-0
更新日期：1997-11-01 00:00:00
abstract：:Educational attainment has been negatively associated with the prevalence, morbidity and mortality of many diseases. With knee osteoarthritis as an example, we used NHANES I data to examine whether the cross-sectional association between formal education and disease is due to known risk factors, and also whether educa...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(92)90006-9
更新日期：1992-02-01 00:00:00
abstract：OBJECTIVE:We aimed to generate evidence on patients' values and preferences to inform the development of the German national Evidence-based Anal Cancer Guideline. STUDY DESIGN AND SETTING:We developed a list of health outcomes based on a systematic search. We then asked anal cancer patients and experts of the guidelin...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2020.09.026
更新日期：2021-01-01 00:00:00
abstract：:Core outcome sets (COSs) are agreed-on standardized sets of outcomes that should be minimally measured in all trials of a given disease. To enhance the uptake of COSs in trials, their generalizability should be increased by a change in the number and diversity of stakeholders involved in their development. Also, their...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2020.01.004
更新日期：2020-09-01 00:00:00
abstract：:To effectively evaluate medical literature, practicing physicians and medical researchers must understand the impact of statistical tests on research outcomes. Applying inefficient statistics not only increases the need for resources, but more importantly increases the probability of committing a Type I or Type II err...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(98)00168-1
更新日期：1999-03-01 00:00:00
abstract：:Whether or not to treat patients with non-rheumatic atrial fibrillation with anticoagulants to prevent embolic stroke is a dilemma for physicians. If randomized trials, currently underway, demonstrate a beneficial effect, the dilemma will not be solved because not all of the relevant factors can be addressed by trials...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(91)90219-y
更新日期：1991-01-01 00:00:00
abstract：UNLABELLED:To systematically investigate location bias of controlled clinical trials in complementary/alternative medicine (CAM). METHODS:Literature searches were performed to identify systematic reviews and meta-analyses, which were used to retrieve controlled clinical trials. Trials were categorised by whether they ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(99)00220-6
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVE:To describe the pain decrease considered as clinically relevant when designing a trial and reporting its results. METHODS:A systematic review of the literature in MEDLINE was conducted to select randomized controlled trials (RCTs) with pain as a primary outcome. Data extracted included the definition (terms ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2010.06.008
更新日期：2011-05-01 00:00:00
abstract：BACKGROUND:We aimed to compare the judgmental and mathematical approaches in weighting the Pediatric Ulcerative Colitis Activity Index (PUCAI). METHODS:The PUCAI was previously weighted mathematically using multivariate regression modeling on 157 children with ulcerative colitis (UC). Independently, a Delphi group of ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2008.09.008
更新日期：2009-07-01 00:00:00
abstract：OBJECTIVE:Asymptomatic peripheral arterial occlusive disease (PAOD) is a common atherosclerotic disorder among the elderly population. Scarce data are available on the risk of nonfatal and fatal cardiovascular diseases in these subjects. We investigated cardiovascular morbidity and mortality of asymptomatic PAOD subjec...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jclinepi.2003.09.003
更新日期：2004-03-01 00:00:00
abstract：OBJECTIVES:To recommend methodological standards in the prevention and handling of missing data for primary patient-centered outcomes research (PCOR). STUDY DESIGN AND SETTING:We searched National Library of Medicine Bookshelf and Catalog as well as regulatory agencies' and organizations' Web sites in January 2012 for...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2013.08.013
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:Interpretation of clinical research findings using the paradigm of null hypothesis significance testing has a number of limitations. These include arbitrary dichotomization of results, lack of incorporation of study power and prior probability, and the confusing use of conditional probability. This study aim...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2017.08.016
更新日期：2017-12-01 00:00:00
abstract：:The purpose of this study was to evaluate whether elements signifying relative insulin sensitivity (IS) were prospectively linked to accidents and suicides in 14,976 Helsinki Heart Study (HHS) screenees. The main outcome measure was hospitalizations and deaths from accidents and suicide attempts determined from Finnis...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(02)00407-9
更新日期：2002-08-01 00:00:00
abstract：OBJECTIVES:To analyze whether differences between the interval from suspicion or clinical diagnosis to treatment onset (IClinDT) and the interval from certainty diagnosis to treatment onset (ICertDT) varied by tumor site, stage, and mode of hospital admission. STUDY DESIGN AND SETTING:From our hospital cancer registry...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2012.12.018
更新日期：2013-08-01 00:00:00
abstract：:Cancer mortality from 1986 to 1992 was examined in a cohort of 4419 individuals who had been residing in an area of the municipality of Reggio Emilia, northern Italy, where tap water with unusually high selenium content was accidentally supplied. Mortality for all cancers was not significantly different, both in males...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(95)00014-u
更新日期：1995-09-01 00:00:00
abstract：:Criterion validity studies sometimes use designs with test-based enrollment schemes. In such incomplete studies, a Reference Instrument (RI) is applied to unequal sampling fractions of subjects previously identified as positives or negatives by a new Test Instrument (TI+ and TI-). Focusing on sensitivity (Se) and spec...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(03)00162-8
更新日期：2003-10-01 00:00:00
abstract：OBJECTIVE:We examined whether a breast cancer risk prediction model other than the Gail et al. model performs better at discriminating between women who will and who will not develop the disease. METHODS:We applied the two published versions of the Rosner and Colditz log-incidence model of breast cancer, developed on ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(03)00124-0
更新日期：2003-09-01 00:00:00
abstract：:We analyzed data from outpatients with chronic low back pain (LBP) in the Veterans Health Study (n = 563) to examine the relationship between localized LBP intensity and radiating leg pain in assessing patient functional status, low back disability, and use of diagnostic imaging. Based on the localized LBP intensity, ...
journal_title：Journal of clinical epidemiology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/s0895-4356(99)00094-3
更新日期：1999-11-01 00:00:00
abstract：:A prospective study on the effects of occupational and individual factors on neck trouble was carried out among 1832 men representing static work with whole-body vibration (machine operators), dynamic physical work (construction carpenters) and sedentary work (office workers). Neck trouble and occupational and individ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(94)90085-x
更新日期：1994-12-01 00:00:00
abstract：OBJECTIVES:To determine what criteria researchers use to assess whether the estimates of effect of an intervention on a dichotomous outcome are different when obtained using different study designs. STUDY DESIGN AND SETTING:Scoping review of the literature. We included studies of dichotomous outcomes in which authors ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2016.02.001
更新日期：2016-07-01 00:00:00
abstract：:This paper reports a prospective study, carried out in elderly patients hospitalized for acute illness, designed to evaluate the effectiveness of medical treatment from the point of view of quality of life (QoL). Patient's autoperception and satisfaction with health, the most relevant subjective estimates of QoL, were...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(94)00237-k
更新日期：1995-08-01 00:00:00
abstract：:A small variability of exposure in a population, for example small variance in nutrient intake, limits the power of an epidemiologic study. McKeown-Eyssen and Thomas (J Chron Dis 1985; 38:559-568) have shown that by selecting a population with larger exposure variance vs one with smaller variance, the study sample siz...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/0895-4356(94)90190-2
更新日期：1994-08-01 00:00:00
abstract：INTRODUCTION:Weight loss interventions often present small mean weight changes over time, despite the fact that a substantial proportion of the participants lost more weight. This effect is often leveled out by the substantial proportion of participants who gained weight during the trial. The aim of this study is to id...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jclinepi.2014.03.007
更新日期：2014-08-01 00:00:00
