Abstract：
BACKGROUND:Physical activity (PA) is a modifiable lifestyle factor for many chronic diseases with established health benefits. PA outcomes are measured and assessed in many longitudinal studies, but their analyses often pose difficulties due to the presence of many zeros, extreme skewness, and lack of independence, which render standard regression methods inappropriate. METHODS:A two-part multilevel modeling approach is used to analyze the heterogeneous and correlated PA data. In the first part, a logistic mixed regression model is fitted to estimate the prevalence of PA and factors associated with PA participation over time. For subjects engaging in PA, a gamma mixed regression model is adopted in the second part to assess the effects of predictor variables on the repeated PA outcomes nested within clusters. Extra variations are accommodated within the modeling process by random effects assigned to each cluster and each subject in the cohort. RESULTS:The findings in a longitudinal multilevel study of a community-based PA intervention for older adults demonstrate the effectiveness of the intervention program and enable the identification of pertinent factors affecting participation and PA levels over time. CONCLUSIONS:The two-part mixed regression approach provides a practical and statistically valid method to analyze the skewed and correlated PA data with many zeros. The methodology can be extended to handle complex hierarchical or multilevel settings by suitable specification of the covariance structure in the random components, model fitting of which can be performed in STATA using GLLAMM with various user-specified options.
journal_name
Prev Medjournal_title
Preventive medicineauthors
Lee AH,Zhao Y,Yau KK,Xiang Ldoi
10.1016/j.ypmed.2010.09.012subject
Has Abstractpub_date
2010-12-01 00:00:00pages
476-81issue
6eissn
0091-7435issn
1096-0260pii
S0091-7435(10)00373-7journal_volume
51pub_type
杂志文章abstract：BACKGROUND:The relationship between physical activity (PA) and the development of hip/knee osteoarthritis (OA) has not been clearly defined. The purpose of this study was to develop a method to quantify PA-related joint stress and to assess its influence on the risk of hip/knee OA. METHODS:Participants in a large long...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/s0091-7435(03)00018-5
更新日期：2003-05-01 00:00:00
abstract：OBJECTIVE:The aim of this experiment was to examine the differential impact of a narrative and a non-narrative skin cancer message on health promoting actions and information-seeking behaviors. METHODS:Participants were 230 Flemish university students aged 18 to 25 years who participated in a web based experiment in F...
journal_title：Preventive medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ypmed.2010.04.019
更新日期：2010-08-01 00:00:00
abstract：BACKGROUND:Families of people with ischemic heart disease (IHD) are likely to share high levels of risk markers and to have similar lifestyle patterns. Teenage children in such families were the focus of a behavioral intervention program. METHODS:Families were randomly allocated to either an "early" or a "late" advice...
journal_title：Preventive medicine
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：1992-09-01 00:00:00
abstract：OBJECTIVES:We examined the feasibility and effectiveness of an intervention to mobilize women in the social networks of pregnant smokers to support smoking cessation. METHODS:This study was conducted in St. Paul, Minnesota, and Columbus, Ohio, from 2005 through 2007. Pregnant smokers (n=82) identified a woman in their...
journal_title：Preventive medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ypmed.2010.01.003
更新日期：2010-03-01 00:00:00
abstract：BACKGROUND:Although extraordinary advances have been made in the management of advanced coronary artery disease, little progress has been made in its prevention. Traditional screening methods utilizing risk factor profiles and exercise treadmill tests have failed to identify populations who will subsequently have coron...
journal_title：Preventive medicine
pub_type： 杂志文章,评审
doi：10.1006/pmed.2000.0813
更新日期：2002-01-01 00:00:00
abstract：:One explanation for the increasing smoking-related health inequalities is the limited access of lower socioeconomic status (SES) smokers to smoking cessation support. In order to understand this limited access - and to eventually improve accessibility - we provide a structured overview of the barriers that lower SES s...
journal_title：Preventive medicine
pub_type： 杂志文章,评审
doi：10.1016/j.ypmed.2019.03.029
更新日期：2019-06-01 00:00:00
abstract：BACKGROUND:The goal of this study is to better understand factors related to physician treatment of tobacco as a chronic medical condition. METHODS:In the fall of 2000, we conducted a mail survey of primary care physicians in a large mid-western health plan. The response rate was 61% (750/1235). The survey assessed ph...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2003.11.016
更新日期：2004-05-01 00:00:00
abstract：OBJECTIVE:Text-messaging shows promise as a health intervention. This randomized controlled trial evaluated a daily text-messaging weight loss intervention. METHODS:Overweight and obese adults (n=170) in California were randomized to receive daily interactive and personally weight-relevant text-messages or monthly e-n...
journal_title：Preventive medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ypmed.2012.08.011
更新日期：2012-11-01 00:00:00
abstract：BACKGROUND:Studies of the cardiovascular consequences of combat stress are few and inconclusive. OBJECTIVE:The association between combat exposure and subclinical atherosclerosis at Atherosclerosis Risk in Communities (ARIC) Study visits 1 (1987-1989) and 2 (1990-1992) was assessed among 5347 men from four U.S. commun...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2010.02.009
更新日期：2010-05-01 00:00:00
abstract：OBJECTIVES:Students, faculty, and staff at a Pacific Northwest public university were surveyed one year after enactment of a smoke-free campus policy. Objectives were to assess levels of support for a smoke-free campus, ascertain exposure levels to outdoor tobacco smoke, and identify correlates of policy support. METH...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2014.12.018
更新日期：2015-02-01 00:00:00
abstract：:Only a small fraction of the health-care dollar is directed toward lifestyle changes that would reduce the social burden from cardiovascular diseases (CVD). Here we discuss the challenge, opportunity, methods, and potential for managed care to implement risk reduction strategies and preventive care. A systematic team ...
journal_title：Preventive medicine
pub_type： 杂志文章,评审
doi：10.1006/pmed.1999.0563
更新日期：1999-12-01 00:00:00
abstract：OBJECTIVE:To assess the association between the built environment and physical fitness and physical activity in adolescents. METHODS:The study included 3528 adolescents, aged 12.5-17.5 years, who participated in the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study. The health-related physical fit...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2013.09.015
更新日期：2013-12-01 00:00:00
abstract：:Extracurricular sport has been a valued educational investment to promote both physical and mental health in children and adolescents. Few longitudinal studies have tested whether extracurricular sport is associated with inattentive/hyperactive symptoms. Using a prospective-longitudinal birth cohort of 758 girls and 7...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2020.106256
更新日期：2020-12-01 00:00:00
abstract：:Suicide is an important public health problem that requires a preventive approach. The present study aimed at assessing suicidal behaviors and their relations with other psychosocial factors in Campeche, Mexico, in order to inform the design of potential preventive interventions. A multistage probability sample of 238...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2017.09.011
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE:Habitual short sleep duration is a common practice linked to weight gain and risk of obesity. Our objective was to examine the association between sleep duration with other behaviors, such as physical activity and nutrition, which are important for obesity prevention efforts. METHODS:We used cross-sectional ...
journal_title：Preventive medicine
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ypmed.2007.11.008
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:Obesity is associated with several chronic conditions, increased medical costs, and premature death. Proper assessment of changes in body weight is crucial to control the spread of obesity. We used data from the Behavioral Risk Factor Surveillance System to explore how adults in the United States recall their...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2012.04.019
更新日期：2012-08-01 00:00:00
abstract：OBJECTIVE:Current literature supports the link between physical activity (PA) or fitness and a child's ability to achieve academically; however, little structured activity time is incorporated into elementary school classrooms. This paper explores the impact of a classroom-based PA program, TAKE 10!, and health-academi...
journal_title：Preventive medicine
pub_type： 杂志文章,评审
doi：10.1016/j.ypmed.2011.01.025
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVE:To estimate the prevalence of complementary and alternative medicine (CAM) use among children with current asthma. DESIGN:We analyzed data from the Asthma Call Back Survey (ACBS) 2006-2008. ACBS is a follow-up to the state-based Behavioral Risk Factor Surveillance System (BRFSS) survey that collects informat...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2011.10.007
更新日期：2012-01-01 00:00:00
abstract：:Low physical activity (PA) and high levels of sedentary time (ST) are associated with higher cardiovascular disease (CVD) risk among older people. However, their independent contribution and importance of duration of PA and ST bouts remain unclear. We investigated associations between objectively measured PA, ST and n...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2016.05.031
更新日期：2016-08-01 00:00:00
abstract：:It appears that most people who engage in exercise for 20-60 min per day, 3 days per week, at an intensity level of 70-80% of maximal heart rate will derive at least some health-related benefits associated with improved cardiorespiratory fitness and optimal body weight. Individuals exhibiting extremely low cardiorespi...
journal_title：Preventive medicine
pub_type： 杂志文章,评审
doi：10.1016/0091-7435(84)90042-2
更新日期：1984-01-01 00:00:00
abstract：:Some questions about adolescent smoking levels as reported in national surveys were recently raised by M. B. Mittelmark, D. M. Murray, R. N. Luepker, and T. F. Pechacek, [Prev. Med. 11, 708-712 (1982)]: such levels may be underreported, calling into question the decline in adolescent smoking. The present article sugge...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/0091-7435(84)90033-1
更新日期：1984-07-01 00:00:00
abstract：BACKGROUND:School playgrounds during break times provide potential opportunities for children to be active during the school day. However, there is limited research on how active children really are during these breaks. METHODS:The CAST (Children's Activity Scanning Tool) instrument was developed, validated, and used ...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1006/pmed.2001.0905
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:This article describes the results of studies on the barriers and benefits of cervical cancer screening from the perspective of women, men, and health providers in five Latin American countries and compares them to other findings from the literature. METHODS:Five separate qualitative studies (focus groups a...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2004.03.040
更新日期：2004-07-01 00:00:00
abstract：BACKGROUND:In a population-based sample of smokers in early motivational stages, we found a high acceptance of smoking cessation groups. METHODS:Inter99 is a randomized population-based intervention study, in Copenhagen, Denmark. Smokers in all motivational stages were included. All participants underwent a lifestyle ...
journal_title：Preventive medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.ypmed.2004.06.011
更新日期：2005-03-01 00:00:00
abstract：INTRODUCTION:Studies investigating the regional impact of the 2012 U.S. Preventive Services Task Force (USPSTF) recommendation against the use of prostate specific antigen (PSA) screening for prostate cancer have been limited. METHODS:A retrospective cohort study was conducted on men age 50years and older in Southeast...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2015.11.017
更新日期：2016-01-01 00:00:00
abstract：:Providing smoking cessation treatment with annual low dose CT (LDCT) screening offers an opportunity to reduce smoking-related morbidity and mortality. However, the optimal approach for delivering cessation interventions in the LDCT screening context is unknown. We searched for randomized controlled trials and observa...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2019.02.016
更新日期：2019-04-01 00:00:00
abstract：OBJECTIVES:To investigate the psychometric properties of the developed 21 item questionnaire to measure definitions, attitudes and management practices in relation to diarrhea during enteral nutrition (DAPonDEN). METHODS:Data were analyzed using exploratory factor analysis from a cross sectional study of 102 nurses ag...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2012.12.021
更新日期：2013-01-01 00:00:00
abstract：OBJECTIVE:To examine the contribution of lifestyle behaviours to the socioeconomic gradient in all-cause mortality, and fatal and non-fatal cardiovascular events. METHOD:10,600 men aged 50-59 years examined in 1991-1994 in Northern Ireland (NI) and France and followed annually for deaths and cardiovascular events for ...
journal_title：Preventive medicine
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ypmed.2012.01.017
更新日期：2012-03-01 00:00:00
abstract：:In the Amsterdam Growth and Health Longitudinal Study (AGAHLS) biological risk factors for chronic diseases were measured on eight separate occasions over a period of 20 years in a group of apparently healthy males and females (n = 164). Data were first collected from participants at 13 years of age. At each of the ei...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1006/pmed.2002.1107
更新日期：2002-12-01 00:00:00
abstract：OBJECTIVE:To evaluate the effectiveness of the Life Style Modification Program for Physical Activity and Diet (LiSM-PAN) in comparison to a conventional healthcare program. METHOD:Subjects with risk factor(s) for chronic disease were allocated as a cluster to the LiSM group (n=92) or the Control group (n=85). The LiSM...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2007.05.004
更新日期：2007-08-01 00:00:00
