Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Public Health

University of South Carolina

Series

Epidemiology

Articles 1 - 22 of 22

Full-Text Articles in Medicine and Health Sciences

Determining Diagnosis Date Of Diabetes Using Structured Electronic Health Record (Ehr) Data: The Search For Diabetes In Youth Study, Kristin M. Lenoir, Lynne E. Wagenknecht, Jasmin Divers, Ramon Casanova, Dana Dabelea, Sharon Saydah, Catherine Pihoker, Angela D. Liese Ph.D., Debra Standiford, Richard Hamman, Brian J. Wells, The Search For Diabetes In Youth Study Group Oct 2021

Determining Diagnosis Date Of Diabetes Using Structured Electronic Health Record (Ehr) Data: The Search For Diabetes In Youth Study, Kristin M. Lenoir, Lynne E. Wagenknecht, Jasmin Divers, Ramon Casanova, Dana Dabelea, Sharon Saydah, Catherine Pihoker, Angela D. Liese Ph.D., Debra Standiford, Richard Hamman, Brian J. Wells, The Search For Diabetes In Youth Study Group

Faculty Publications

Background Disease surveillance of diabetes among youth has relied mainly upon manual chart review. However, increasingly available structured electronic health record (EHR) data have been shown to yield accurate determinations of diabetes status and type. Validated algorithms to determine date of diabetes diagnosis are lacking. The objective of this work is to validate two EHR-based algorithms to determine date of diagnosis of diabetes. Methods A rule-based ICD-10 algorithm identified youth with diabetes from structured EHR data over the period of 2009 through 2017 within three children’s hospitals that participate in the SEARCH for Diabetes in Youth Study: Cincinnati Children’s Hospital, …


Recognition And Screening For Chagas Disease In The Usa, Rachel Marcus, Andres F. Henao-Martinez, Melissa Nolan Ph.D., Mph, Elizabeth Livingston, Stephen A. Klotz, Robert H. Gilman, Monica Miranda-Schaeubinger, Sheba Meymandi Sep 2021

Recognition And Screening For Chagas Disease In The Usa, Rachel Marcus, Andres F. Henao-Martinez, Melissa Nolan Ph.D., Mph, Elizabeth Livingston, Stephen A. Klotz, Robert H. Gilman, Monica Miranda-Schaeubinger, Sheba Meymandi

Faculty Publications

Chagas disease (CD), caused by the protozoan Trypanosoma cruzi, is a public health concern, mainly among countries in South and Central America. However, despite the large number of immigrants from endemic countries living in the USA, awareness of CD is poor in the medical community, and therefore it is significantly underdiagnosed. To avoid the catastrophic cardiac complications of CD and to prevent maternal–fetal transmission, widespread educational programs highlighting the need for diagnosis are urgently needed.


Relationship Between Food Insecurity And Smoking Status Among Women Living With And At Risk For Hiv In The Usa: A Cohort Study, Lila A. Sheira, Edward A. Frongillo Jr., Judith Hahn, Kartika Palar, Elise D. Riley, Tracey E. Wilson, Adebola Adedimeji, Daniel Merenstein, Mardge Cohen, Eryka L. Wentz, Adaora A. Adimora, Ighovwerha Ofotokun, Lisa Metsch, Janet M. Turan, Phyllis C. Tien, Sheri D. Weiser Sep 2021

Relationship Between Food Insecurity And Smoking Status Among Women Living With And At Risk For Hiv In The Usa: A Cohort Study, Lila A. Sheira, Edward A. Frongillo Jr., Judith Hahn, Kartika Palar, Elise D. Riley, Tracey E. Wilson, Adebola Adedimeji, Daniel Merenstein, Mardge Cohen, Eryka L. Wentz, Adaora A. Adimora, Ighovwerha Ofotokun, Lisa Metsch, Janet M. Turan, Phyllis C. Tien, Sheri D. Weiser

Faculty Publications

Objectives People living with HIV (PLHIV) in the USA, particularly women, have a higher prevalence of food insecurity than the general population. Cigarette smoking among PLHIV is common (42%), and PLHIV are 6–13 times more likely to die from lung cancer than AIDS related causes. This study sought to investigate the associations between food security status and smoking status and severity among a cohort of predominantly low-income women of colour living with and without HIV in the USA.

Design Women enrolled in an ongoing longitudinal cohort study from 2013 to 2015.

Setting Nine participating sites across the USA.

Participants 2553 …


A Nationwide Population-Based Study On The Association Between Land Transport Accident And Peripheral Vestibular Disorders, Herng-Ching Lin, Sudha Xirasagar Mbbs,Ph.D., Chia-Hui Wang, Yen-Fu Cheng, Tsai-Ching Liu, Tzong-Hann Yang Jun 2021

A Nationwide Population-Based Study On The Association Between Land Transport Accident And Peripheral Vestibular Disorders, Herng-Ching Lin, Sudha Xirasagar Mbbs,Ph.D., Chia-Hui Wang, Yen-Fu Cheng, Tsai-Ching Liu, Tzong-Hann Yang

Faculty Publications

This case-control study aimed to investigate the association of peripheral vestibular disorders (PVD) with subsequent land transport accidents. Data for this study were obtained from Taiwan's National Health Insurance (NHI) dataset. We retrieved 8704 subjects who were newly found to have land transport accidents as cases. Their diagnosis date was used as their index date. Controls were identified by propensity score matching (one per case, n = 8704 controls) from the NHI dataset with their index date being the date of their first health service claim in 2017. Multiple logistic regressions were performed to calculate the prior PVD odds ratio …


A Nationwide Population-Based Study On The Incidence Of Parapharyngeal And Retropharyngeal Abscess-A 10-Year Study, Tzong-Hann Yang, Sudha Xirasagar Mbbs., Ph.D., Yen-Fu Cheng, Chuan-Song Wu, Yi-Wei Kao, Herng-Ching Lin Jan 2021

A Nationwide Population-Based Study On The Incidence Of Parapharyngeal And Retropharyngeal Abscess-A 10-Year Study, Tzong-Hann Yang, Sudha Xirasagar Mbbs., Ph.D., Yen-Fu Cheng, Chuan-Song Wu, Yi-Wei Kao, Herng-Ching Lin

Faculty Publications

This study aimed to investigate the annual incidence of parapharyngeal and retropharyngeal abscess (PRPA) based on 10-year population-based data. Patients with PRPA were identified from the Taiwan Health Insurance Research Database, a database of all medical claims of a randomly selected, population-representative sample of over two million enrollees of the National Health Insurance system that covers over 99% of Taiwan’s citizens. During 2007–2016, 5779 patients received a diagnosis of PRPA. We calculated the population-wide incidence rates of PRPA by sex and age group (20–44, 45–64, and >64) as well as in-hospital mortality. The annual incidence rate of PRPA was 2.64 …


The Association Between Dietary Inflammatory Index (Dii) And Cancer Risk In Korea: A Prospective Cohort Study Within The Koges-Hexa Study, Injeong Ryu, Minji Kwon, Cheongmin Sohn, Nitin Shivappa, James R. Hébert, Woori Na, Mi Kyung Kim Oct 2019

The Association Between Dietary Inflammatory Index (Dii) And Cancer Risk In Korea: A Prospective Cohort Study Within The Koges-Hexa Study, Injeong Ryu, Minji Kwon, Cheongmin Sohn, Nitin Shivappa, James R. Hébert, Woori Na, Mi Kyung Kim

Faculty Publications

Several epidemiological studies have shown that there are consistently positive associations between dietary inflammatory index (DII (R)) scores and cancer incidence in Western populations. However, few DII-cancer studies have been conducted in East Asian populations. In a large cohort representative of the general Korean population, we investigated whether the DII is associated with overall cancer risk. A total of 163,660 participants (56,781 males and 106,879 females) had evaluable data for analyses. This follow-up study was carried out over the course of 7.9 years. DII scores were calculated based on Semi-Quantitative Food-Frequency Questionnaire (SQ-FFQ) data for 106 food items. Cancers were …


Body Mass Index Z-Score Modifies The Association Between Added Sugar Intake And Arterial Stiffness In Youth With Type 1 Diabetes: The Search Nutrition Ancillary Study, Natalie S. The, Sarah C. Couch, Elaine M. Urbina, Jamie L. Crandell, Angela D. Liese, Dana Dabelea, Grace J. Kim, Janet A. Tooze, Jean M. Lawrence, Elizabeth J. Mayer-Davis Jul 2019

Body Mass Index Z-Score Modifies The Association Between Added Sugar Intake And Arterial Stiffness In Youth With Type 1 Diabetes: The Search Nutrition Ancillary Study, Natalie S. The, Sarah C. Couch, Elaine M. Urbina, Jamie L. Crandell, Angela D. Liese, Dana Dabelea, Grace J. Kim, Janet A. Tooze, Jean M. Lawrence, Elizabeth J. Mayer-Davis

Faculty Publications

The relationship between added sugar and arterial stiffness in youth with type 1 diabetes (T1D) has not been well-described. We used data from the SEARCH for Diabetes in Youth Study (SEARCH), an ongoing observational cohort study, to determine the association between added sugar and arterial stiffness in individuals diagnosed with T1D(n = 1539; mean diabetes duration of 7.9 ± 1.9 years). Added sugar intake was assessed by a food frequency questionnaire, and arterial stiffness measures included pulse wave velocity (PWV) and augmentation index. Separate multivariate linear regression models were used to evaluate the association between added sugar and arterial stiffness. …


Positive Association Between Dietary Inflammatory Index And The Risk Of Osteoporosis: Results From The Koges_Health Examinee (Hexa) Cohort Study, Hye Sun Kim, Cheongmin Sohn, Minji Kwon, Woori Na, Nitin Shivappa, James R. Hébert, Mi Kyung Kim Dec 2018

Positive Association Between Dietary Inflammatory Index And The Risk Of Osteoporosis: Results From The Koges_Health Examinee (Hexa) Cohort Study, Hye Sun Kim, Cheongmin Sohn, Minji Kwon, Woori Na, Nitin Shivappa, James R. Hébert, Mi Kyung Kim

Faculty Publications

Previous studies have found that diet’s inflammatory potential is related to various diseases. However, little is known about its relationship with osteoporosis. The aim of this study was to investigate the association between the dietary inflammatory index (DII®) and osteoporosis risk in a large-scale prospective cohort study in Korea. This prospective cohort study included 159,846 participants (men 57,740; women 102,106) from South Korea with a mean follow-up of 7.9 years. The DII was calculated through a validated semi-quantitative FFQ (SQFFQ), and information on osteoporosis was self-reported by the participants. Analyses were performed by using a multivariable Cox proportional hazard model. …


Dietary Inflammatory Index And Cardiovascular Risk And Mortality—A Meta-Analysis, Nitin Shivappa, Justyna Godos, James R. Hébert, Michael Wirth, Gabriele Piuri, Attilio Speciani, Giuseppe Grosso Feb 2018

Dietary Inflammatory Index And Cardiovascular Risk And Mortality—A Meta-Analysis, Nitin Shivappa, Justyna Godos, James R. Hébert, Michael Wirth, Gabriele Piuri, Attilio Speciani, Giuseppe Grosso

Faculty Publications

Diet and chronic inflammation have been suggested to be risk factors in the development of cardiovascular disease (CVD) and related mortality. The possible link between the inflammatory potential of diet measured through the Dietary Inflammatory Index (DII®) and CVD has been investigated in several populations across the world. The aim of this study was to conduct a meta-analysis on studies exploring this association. Data from 14 studies were eligible, of which two were case-control, eleven were cohort, and one was cross-sectional. Results from the random-effects meta-analysis showed a positive association between increasing DII, indicating a pro-inflammatory diet, and …


Dietary Inflammatory Index And Colorectal Cancer Risk – A Meta-Analysis, Nitin Shivappa, Justyna Godos, James R. Hébert, Michael David Wirth, Gabriele Piuri, Attilio Speciani, Giuseppe Grosso Sep 2017

Dietary Inflammatory Index And Colorectal Cancer Risk – A Meta-Analysis, Nitin Shivappa, Justyna Godos, James R. Hébert, Michael David Wirth, Gabriele Piuri, Attilio Speciani, Giuseppe Grosso

Faculty Publications

Diet and chronic inflammation of the colon have been suggested to be risk factors in the development of colorectal cancer (CRC). The possible link between inflammatory potential of diet, measured through the Dietary Inflammatory Index (DII®), and CRC has been investigated in several populations across the world. The aim of this study was to conduct a meta-analysis on studies exploring this association. Data from nine studies were eligible, of which five were case-control and four were cohort studies. Results from meta-analysis showed a positive association between increasing DII scores, indicating a pro-inflammatory diet, and CRC. Individuals in the highest versus …


Long-Term Effects Of Changes In Cardiorespiratory Fitness And Body Mass Index On All-Cause And Cardiovascular Disease Mortality In Men: The Aerobics Center Longitudinal Study, Duck-Chul Lee, Xuemei Sui, Enrique G. Artero, I-Min Lee, Timothy S. Church, Paul A. Mcauley, Fatima C. Stanford, Harold W. Kohl Iii, Steven N. Blair Dec 2011

Long-Term Effects Of Changes In Cardiorespiratory Fitness And Body Mass Index On All-Cause And Cardiovascular Disease Mortality In Men: The Aerobics Center Longitudinal Study, Duck-Chul Lee, Xuemei Sui, Enrique G. Artero, I-Min Lee, Timothy S. Church, Paul A. Mcauley, Fatima C. Stanford, Harold W. Kohl Iii, Steven N. Blair

Faculty Publications

Background - The combined associations of changes in cardiorespiratory fitness and body mass index (BMI) with mortality remain controversial and uncertain.

Methods and Results - We examined the independent and combined associations of changes in fitness and BMI with all-cause and cardiovascular disease (CVD) mortality in 14,345 men (mean age 44 years) with at least 2 medical examinations. Fitness, in metabolic equivalents (METs), was estimated from a maximal treadmill test. BMI was calculated using measured weight and height. Changes in fitness and BMI between the baseline and last examinations over 6.3 years were classified into loss, stable, or gain groups. …


The Association Between The Type, Context, And Levels Of Physical Activity Amongst Adolescents, Harriet Koorts, Calum Mattocks, Andy R. Ness, Kevin Deere, Steven N. Blair, Russell R. Pate, Chris Riddoch Nov 2011

The Association Between The Type, Context, And Levels Of Physical Activity Amongst Adolescents, Harriet Koorts, Calum Mattocks, Andy R. Ness, Kevin Deere, Steven N. Blair, Russell R. Pate, Chris Riddoch

Faculty Publications

Background: Little is known about how the type and context of physical activity behaviors varies among adolescents with differing activity levels. The aim of this study was to assess differences in the type and context of physical activity behaviors in adolescents by level of objectively measured physical activity. Methods: Cross-sectional analysis of 2728 adolescents (1299 males, 1429 females) participating in the Avon Longitudinal Study of Parents and Children (ALSPAC). The mean (SD) age was 13.8 (+0.1) years. Physical activity was measured using an Actigraph over 7 days. Adolescents were categorized into tertiles of activity (less, moderately, highly active) using counts/min …


Muscular And Performance Fitness And The Incidence Of Type 2 Diabetes: Prospective Study Of Japanese Men, Susumu S. Sawada, I-Min Lee, Hisashi Naito, Koji Tsukamoto, Takashi Muto, Steven N. Blair Sep 2010

Muscular And Performance Fitness And The Incidence Of Type 2 Diabetes: Prospective Study Of Japanese Men, Susumu S. Sawada, I-Min Lee, Hisashi Naito, Koji Tsukamoto, Takashi Muto, Steven N. Blair

Faculty Publications

Background: Limited data are available on the relationship between muscular and performance fitness (MPF) and the incidence of type 2 diabetes.

Methods: A cohort of 3792 Japanese men completed a medical examination that included MPF and cardiorespiratory fitness tests. MPF index composite score was calculated using Z-scores from vertical jump, sit-ups, side step, and functional reach tests.

Results: The mean follow-up period was 187 months (15.6 years). There were 240 patients who developed type 2 diabetes during follow-up. Relative risks and 95% confidence intervals (CI) for incidence of diabetes across baseline quartiles of MPF index composite score were obtained using …


The Influence Of Cardiorespiratory Fitness On Lung Cancer Mortality, Xuemei Sui, Duck-Chul Lee, Charles E. Matthews, Swann Arp Adams, James R. Hébert, Timothy S. Church, Chong-Do Lee, Steven N. Blair May 2010

The Influence Of Cardiorespiratory Fitness On Lung Cancer Mortality, Xuemei Sui, Duck-Chul Lee, Charles E. Matthews, Swann Arp Adams, James R. Hébert, Timothy S. Church, Chong-Do Lee, Steven N. Blair

Faculty Publications

Purpose—Previous studies have suggested that higher levels of physical activity may lower lung cancer risk; however, few prospective studies have evaluated lung cancer mortality in relation to cardiorespiratory fitness (CRF), an objective marker of recent physical activity habits. Methods—Thirty-eight thousand men, aged 20 to 84 years without history of cancer, received a preventive medical examination at the Cooper Clinic in Dallas, TX, between 1974 and 2002. CRF was quantified as maximal treadmill exercise test duration and was grouped for analysis as low (lowest 20% of exercise duration), moderate (middle 40%), and high (upper 40%). Results—A total of 232 lung cancer …


Cardiorespiratory Fitness As A Predictor Of Fatal And Nonfatal Stroke In Asymptomatic Women And Men, Steven P. Hooker, Xuemei Sui, Natalie Colabianchi, John E. Vena, James N. Laditka, Michael J. Lamonte, Steven N. Blair Nov 2008

Cardiorespiratory Fitness As A Predictor Of Fatal And Nonfatal Stroke In Asymptomatic Women And Men, Steven P. Hooker, Xuemei Sui, Natalie Colabianchi, John E. Vena, James N. Laditka, Michael J. Lamonte, Steven N. Blair

Faculty Publications

Background and Purpose - Prospective data on the association between cardiorespiratory fitness (CRF) and stroke are largely limited to studies in men or do not separately examine risks for fatal and nonfatal stroke. This study examined the association between CRF and fatal and nonfatal stroke in a large cohort of asymptomatic women and men.

Methods - A total of 46,405 men and 15,282 women without known myocardial infarction or stroke at baseline completed a maximal treadmill exercise test between 1970 and 2001. CRF was grouped as quartiles of the sex-specific distribution of maximal metabolic equivalents achieved. Mortality follow-up was through …


Use Of Accelerometers In A Large Field-Based Study Of Children: Protocols, Design Issues, And Effects On Precision, Calum Mattocks, Andy R. Ness, Sam D. Leary, Kate Tilling, Steven N. Blair, Julian Shield, Kevin Deere, Joanne Saunders, Joanne Krikby, George Davey Smith, Jonathan Wells, Nicholas Wareham, John J. Reilly, Chris J. Riddoch Jan 2008

Use Of Accelerometers In A Large Field-Based Study Of Children: Protocols, Design Issues, And Effects On Precision, Calum Mattocks, Andy R. Ness, Sam D. Leary, Kate Tilling, Steven N. Blair, Julian Shield, Kevin Deere, Joanne Saunders, Joanne Krikby, George Davey Smith, Jonathan Wells, Nicholas Wareham, John J. Reilly, Chris J. Riddoch

Faculty Publications

Background: Objective methods can improve accuracy of physical activity measurement in field studies but uncertainties remain about their use.

Methods: Children age 11 years from the Avon Longitudinal Study of Parents and Children (ALSPAC), were asked to wear a uni-axial accelerometer (MTI Actigraph) for 7 days.

Results: Of 7159 children who attended for assessment, 5595 (78%) provided valid measures. The reliability coefficient for 3 days of recording was .7 and the power to detect a difference of 0.07 SDs (P ≤ .05) was > 90%. Measures tended to be higher on the first day of recording (17 counts/min; 95% CI, …


Physical Activity And Blood Pressure In Childhood: Findings From A Population-Based Study, Sam D. Leary, Andy R. Ness, George Davey Smith, Calum Mattocks, Kevin Deere, Steven N. Blair, Chris J. Riddoch Jan 2008

Physical Activity And Blood Pressure In Childhood: Findings From A Population-Based Study, Sam D. Leary, Andy R. Ness, George Davey Smith, Calum Mattocks, Kevin Deere, Steven N. Blair, Chris J. Riddoch

Faculty Publications

The pathological processes associated with development of cardiovascular disease begin early in life. For example, elevated blood pressure (BP) can be seen in childhood and tracks into adulthood. The relationship between physical activity (PA) and BP in adults is well-established, but findings in children have been inconsistent, with few studies measuring PA mechanically. Children aged 11 to 12 years were recruited from the Avon Longitudinal Study of Parents and Children. 5505 had systolic and diastolic BP measurements, plus valid (at least 10 hours for at least 3 days) accelerometer measures of PA; total PA recorded as average counts per minute …


Seasonal Variation In Food Intake, Physical Activity, And Body Weight In A Predominantly Overweight Population, Yunsheng Ma, Barbara C. Olendzki, W. Li, Andrea R. Hafner, David E. Chiriboga, James R. Hébert, Mary Jane Campbell, M. Sarnie, Ira S. Ockene Apr 2006

Seasonal Variation In Food Intake, Physical Activity, And Body Weight In A Predominantly Overweight Population, Yunsheng Ma, Barbara C. Olendzki, W. Li, Andrea R. Hafner, David E. Chiriboga, James R. Hébert, Mary Jane Campbell, M. Sarnie, Ira S. Ockene

Faculty Publications

OBJECTIVE:

To describe seasonal variation in food intake, physical activity, and body weight in a predominantly overweight population.

DESIGN:

A longitudinal observational study.

SETTING:

Most of the study participants were recruited from a health maintenance organization (HMO) in central Massachusetts, USA. Additional individuals of Hispanic descent were recruited from outside of the HMO population to increase the ethnic diversity of this sample.

SUBJECTS:

Data from 593 participants, aged 20-70, were used for this investigation. Each participant was followed quarterly (five sampling points: baseline and four consecutive quarters) for 1-year period. Body weight measurements and three 24-h dietary and physical activity …


Revised Adult Treatment Panel Iii Guidelines And Cardiovascular Disease Mortality In Men Attending A Preventive Medical Clinic, Chris I. Ardern, Peter T. Katzmarzyk, Ian Janssen, Timothy S. Church, Steven N. Blair Sep 2005

Revised Adult Treatment Panel Iii Guidelines And Cardiovascular Disease Mortality In Men Attending A Preventive Medical Clinic, Chris I. Ardern, Peter T. Katzmarzyk, Ian Janssen, Timothy S. Church, Steven N. Blair

Faculty Publications

Background - National Cholesterol Education Program Adult Treatment Panel III guidelines recommended therapeutic lifestyle changes (TLC) and drug therapy to reduce cardiovascular disease (CVD) risk. These guidelines have been revised recently (ATP III-R); however, the risk of CVD mortality within each intervention window and the effects of cardiorespiratory fitness (CRF) and metabolic syndrome on CVD mortality within the framework of the guidelines are unknown.

Methods and Results - Risk factor and CRF data from 19,125 men (aged 20 to 79 years) who attended a preventive medical clinic between 1979 and 1995 were used. Mortality follow-up was completed until December 31, …


Descriptive Epidemiology Of Body Mass Index Of An Urban Adult Population In Western India, H. C. Shukla, P. C. Gupta, H. C. Mehta, James R. Hébert Jan 2002

Descriptive Epidemiology Of Body Mass Index Of An Urban Adult Population In Western India, H. C. Shukla, P. C. Gupta, H. C. Mehta, James R. Hébert

Faculty Publications

Study objective: To describe height, weight, and body mass index (BMI) of the adult urban population in Mumbai, western India and to estimate the prevalence and severity of thinness and overweight in this population. To describe the association of BMI with education, age, and tobacco habits in an urban Indian population. Design: Cross sectional representative survey of 99 598 adults (40 071 men and 59 527 women). Setting: The survey was carried out in the city of Mumbai (formerly known as Bombay) in western India. Participants: Men and women aged >35 years who were residents of the main city of …


Is Malnutrition Declining? An Analysis Of Changes In Levels Of Childhood Malnutrition Since 1980, Mercedes De Onis, Edward A. Frongillo Jr., Monika Blo¨ Ssner Jan 2000

Is Malnutrition Declining? An Analysis Of Changes In Levels Of Childhood Malnutrition Since 1980, Mercedes De Onis, Edward A. Frongillo Jr., Monika Blo¨ Ssner

Faculty Publications

Nutritional status is the best global indicator of well-being in children. Although many surveys of children have been conducted since the 1970s, lack of comparability between them has made it difficult to monitor trends in child malnutrition.

Cross-sectional data from 241 nationally representative surveys were analysed in a standard way to produce comparable results of low height-for-age (stunting). Multilevel modelling was applied to estimate regional and global trends from 1980 to 2005.

The prevalence of stunting has fallen in developing countries from 47% in 1980 to 33% in 2000 (i.e. by 40 million), although progress has been uneven according to …


Descriptive Epidemiology Of Physical Activity In Adolescents, Russell R. Pate, Barbara J. Long, Gregory W. Heath Nov 1994

Descriptive Epidemiology Of Physical Activity In Adolescents, Russell R. Pate, Barbara J. Long, Gregory W. Heath

Faculty Publications

This paper reviews the descriptive epidemiology of physical activity in adolescents. Large population-based studies were reviewed, along with smaller studies using objective monitoring of physical activity. Estimates showed that adolescents engage in physical activity of any intensity for a mean of one hour per day. Approximately two thirds of males and one quarter of females participate in moderate to vigorous activity for 20 min 3 or more days per week. Activity levels decline with increasing age across adolescence, and this decrease is more marked in females than in males. Comparison of these data to physical activity guidelines for adolescents suggests …