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1.
Front Public Health ; 10: 1012727, 2022.
Article in English | MEDLINE | ID: mdl-36424977

ABSTRACT

Background: The use of e-cigarettes is proliferating globally, especially among youth and even children. Marketing is a known risk factor for e-cigarette initiation, yet little is known of e-cigarette marketing on social media in low- and middle-income countries. This study compares e-cigarette social media marketing in India, Indonesia, and Mexico, three such countries with different regulatory environments. Methods: Instances of e-cigarette marketing on social media platforms were identified via the Tobacco Enforcement and Reporting Movement (TERM), a digital tobacco marketing monitoring system. Through systematic keyword-based searches, all tobacco marketing posts observed between 15 December 2021 and 16 March 2022 were included in the analysis. The final sample included 1,437 e-cigarette-related posts on Instagram, Facebook, Twitter, YouTube, and TikTok, which were systematically content analyzed by independent coders after inter-reliability (Cohen's Kappa K > 0.79) was established using a theory-derived codebook. The final data is represented in percentages and frequencies for ease of presentation. Results: We observed e-cigarette marketing online in all countries studied, yet there was variation in the volume of marketing and types of accounts identified. In India, where e-cigarettes were comprehensively banned, we identified 90 (6%) posts; in Mexico, where e-cigarettes were partially restricted, 318 (22%) posts were observed; and in Indonesia, where there were no restrictions, 1,029 (72%) posts were observed. In both India and Mexico, marketing originated from retailer accounts (100%), whereas in Indonesia, it was primarily product brand accounts (86%). Across countries, e-cigarettes were mostly marketed directly to sell products (India: 99%, Indonesia: 69% and Mexico: 93%), though the sales channels varied. Product features, including e-liquid flavors, device colors and technical specifications, was the most prominent message framing (India: 86%; Mexico: 73%; Indonesia: 58%). Harm reduction messaging was most popular in Mexico (8%) and was not common in Indonesia (0.3%) or India (0%). Conclusion: Our study provides important insights for tobacco control stakeholders on the evolving nature of e-cigarette marketing in low- and middle-income countries. It underscores the presence of e-cigarette marketing, including in countries where comprehensive regulations exist, and suggests the importance of continuous monitoring to keep up with industry practices and strengthen tobacco control stakeholder efforts to counter them.


Subject(s)
Electronic Nicotine Delivery Systems , Social Media , Adolescent , Child , Humans , Nicotiana , Indonesia , Mexico , Reproducibility of Results , Marketing
2.
Environ Health Insights ; 14: 1178630220915688, 2020.
Article in English | MEDLINE | ID: mdl-32341651

ABSTRACT

Air pollution is a growing public health concern in developing countries and poses a huge epidemiological burden. Despite the growing awareness of ill effects of air pollution, the evidence linking air pollution and health effects is sparse. This requires environmental exposure scientist and public health researchers to work more cohesively to generate evidence on health impacts of air pollution in developing countries for policy advocacy. In the Global Environmental and Occupational Health (GEOHealth) Program, we aim to build exposure assessment model to estimate ambient air pollution exposure at a very fine resolution which can be linked with health outcomes leveraging well-phenotyped cohorts which have information on geolocation of households of study participants. We aim to address how air pollution interacts with meteorological and weather parameters and other aspects of the urban environment, occupational classification, and socioeconomic status, to affect cardiometabolic risk factors and disease outcomes. This will help us generate evidence for cardiovascular health impacts of ambient air pollution in India needed for necessary policy advocacy. The other exploratory aims are to explore mediatory role of the epigenetic mechanisms (DNA methylation) and vitamin D exposure in determining the association between air pollution exposure and cardiovascular health outcomes. Other components of the GEOHealth program include building capacity and strengthening the skills of public health researchers in India through variety of training programs and international collaborations. This will help generate research capacity to address environmental and occupational health research questions in India. The expertise that we bring together in GEOHealth hub are public health, clinical epidemiology, environmental exposure science, statistical modeling, and policy advocacy.

3.
Ann Glob Health ; 85(1)2019 02 25.
Article in English | MEDLINE | ID: mdl-30873796

ABSTRACT

Children are particularly vulnerable to environmental hazards because they receive higher doses of pollutants in any given environment and often do not have equitable access to social protection mechanisms such as environmental and health care services. The World Health Organization established a global network of collaborating centres that address children's environmental health (CEH). The network developed a focus on low- and middle-income countries (LMICs) and is broadening its reach by conducting regional workshops for CEH.Objective: This paper reports on the outcomes of a workshop held in conjunction with the 17th International Conference (November 2017) of the Pacific Basin Consortium for Environment and Health, focused on the state of CEH in South and Southeast Asia as presented by seven countries from the region (India, Bangladesh, Nepal, Bhutan, Vietnam, Thailand, Sri Lanka).Workshop outcomes: Country reports presented at the meeting show a high degree of similarity with respect to the issues threatening the health of children. The most common problems are outdoor and household air pollution in addition to exposure to heavy metals, industrial chemicals, and pesticides. Many children still do not have adequate access to clean water and improved sanitation while infectious diseases remain a problem, especially for children living in poverty. Child labour is widely prevalent, generally without adequate training or personal protective equipment. The children now face the dual burden of undernutrition and stunting on the one hand and overnutrition and obesity on the other.Conclusion: It is evident that some countries in these regions are doing better than others in varying areas of CEH. By establishing and participating in regional networks, countries can learn from each other and harmonise their efforts to protect CEH so that all can benefit from closer interactions.


Subject(s)
Child Health , Child Mortality , Environmental Health , Adolescent , Air Pollution/statistics & numerical data , Asia, Southeastern/epidemiology , Bangladesh/epidemiology , Bhutan/epidemiology , Child , Child Labor/statistics & numerical data , Child Nutrition Disorders/epidemiology , Child, Preschool , Drinking Water , Environmental Exposure/statistics & numerical data , Growth Disorders/epidemiology , Humans , India/epidemiology , Infant , Infant, Newborn , Nepal/epidemiology , Pediatric Obesity/epidemiology , Pesticides , Quality-Adjusted Life Years , Sanitation/statistics & numerical data , Sri Lanka/epidemiology , Thailand/epidemiology , Vietnam/epidemiology
4.
Food Nutr Bull ; 39(4): 581-594, 2018 12.
Article in English | MEDLINE | ID: mdl-30428716

ABSTRACT

INTRODUCTION: Oraon tribes of India have high levels of undernutrition. Dietary diversification is one of the food-based interventions to ameliorate malnutrition. OBJECTIVES: This study assessed the awareness and availability of indigenous foods and estimated dietary intakes and nutritional status with emphasis on indigenous food consumption among women in the Oraon tribal community in Jharkhand, India. DESIGN: A cross-sectional study with a longitudinal component on dietary intake assessment to capture seasonality. SETTING: Selected villages in Raidih block of Gumla district of Jharkhand. PARTICIPANTS: Reproductive-age Oraon tribal women (N =143). METHODS: Household and dietary surveys were conducted. A 24-hour dietary recall for 2 consecutive days (repeat surveys in 2 other seasons) and food frequency questionnaire were adminsitered on 1 woman per household. Anthropometric assessments were also carried out. OUTCOMES: Socioeconomic status, awareness about indigenous foods, dietary intake pattern, and contribution of indigenous food to nutrient intake of Oraon tribal women in the reproductive age-group. RESULTS: Comprehensive awareness about indigenous food resources was present. However, household food security and actual intake of indigenous foods were low. Higher intake of key micronutrients, calcium and iron, was observed among those who consumed indigenous foods. About 40% of the woman had various degrees of chronic energy deficiency. CONCLUSION: Despite rich knowledge, nutrient-rich indigenous food resources remain underutilized in the Oraon tribal community of Jharkhand, India. Identifying strategies to promote dietary diversity via optimum indigenous food intake could contribute to both food and nutrition security.


Subject(s)
Diet/statistics & numerical data , Energy Intake , Nutritional Status , Adolescent , Adult , Cross-Sectional Studies , Female , Food/statistics & numerical data , Food Supply/statistics & numerical data , Humans , India/epidemiology , Malnutrition , Middle Aged , Socioeconomic Factors , Young Adult
5.
J Hunger Environ Nutr ; 11(4): 548-568, 2016 Oct 01.
Article in English | MEDLINE | ID: mdl-27867449

ABSTRACT

Traditional foods of indigenous communities can be explored as a sustainable means of addressing undernutrition. Our study aimed at identifying indigenous foods of the Santhal tribal community of Godda district of Jharkhand, India, assessing their nutritive value, and appraising their potential role in addressing hidden hunger. A cross-sectional survey using qualitative methods like focus group discussions with women of childbearing age (15-49 years), adult males, and elderly people was conducted for food identification. This was followed by taxonomic classification and quantitative estimate of nutritive value of the identified foods either in a certified laboratory or from secondary data. The community was well aware of the indigenous food resources in their environment. More than 100 different types of indigenous foods including a number of green leafy vegetables were identified. Taxonomic classification was available for 25 food items and an additional 26 food items were sent for taxonomic classification. Many indigenous foods (more than 50% of which were green leafy vegetables) were found to be rich sources of micronutrients like calcium, iron, vitamin A as beta carotene, and folate. Maximizing utilization of indigenous foods can be an important and sustainable dietary diversification strategy for addressing hidden hunger in this indigenous community.

6.
Public Health Nutr ; 19(12): 2256-67, 2016 08.
Article in English | MEDLINE | ID: mdl-26982487

ABSTRACT

OBJECTIVE: The indigenous food environment, dietary intake and nutritional status of women in the Santhal tribal community of Jharkhand were assessed. Contribution of indigenous foods to nutritional status and nutrient intakes was explored. DESIGN: Exploratory cross-sectional study with a longitudinal dietary intake assessment component. Household and dietary surveys were conducted to elicit information on socio-economic and demographic profile and food consumption patterns at household level. A 24 h dietary recall for two consecutive days (repeat surveys in two more seasons) and anthropometric assessments were carried out on one woman per household. SETTING: Households (n 151) with at least one woman of reproductive age in four villages of Godda district of Jharkhand, India. SUBJECTS: Women aged 15-49 years. RESULTS: Almost all households owned agricultural land and grew fruits and vegetables in backyards for household consumption. A wide variety of indigenous foods were reported but dietary recalls revealed low intake. Women consumed adequate energy and protein but micronutrient intake was inadequate (less than 66 % of recommended) in the majority (more than 50 %) for Ca, Fe, vitamin B2, folate and vitamin B12. Women consuming indigenous foods in the past 2 d had significantly higher intakes of Ca (P=0·008) and Fe (P=0·010) than those who did not. Varying degrees of underweight were observed in 50 % of women with no significant association between underweight and consumption of indigenous foods. CONCLUSIONS: Promotion of preferential cultivation of nutrient-dense indigenous food sources and effective nutrition education on their importance may facilitate better micronutrient intakes among women in Santhal community of Jharkhand.


Subject(s)
Diet/ethnology , Nutritional Status , Adolescent , Adult , Cross-Sectional Studies , Diet Surveys , Dietary Proteins/administration & dosage , Energy Intake , Female , Humans , India/epidemiology , Micronutrients/administration & dosage , Middle Aged , Thinness/ethnology , Young Adult
7.
Ecol Food Nutr ; 54(5): 493-519, 2015.
Article in English | MEDLINE | ID: mdl-25902000

ABSTRACT

Traditional knowledge and nutritional value of indigenous foods of the Oraon tribal community in Jharkhand, India was explored. Focus group discussions were conducted with adult members to identify commonly consumed indigenous foods. Taxonomic classification and quantitative estimation of nutritive value were conducted in laboratories or utilized data from Indian food composition database. More than 130 varieties of indigenous foods were identified, many of which were rich sources of micronutrients like calcium, iron, vitamin A, and folic acid. Some were reported having medicinal properties. Utilization and ease of assimilation of indigenous foods into routine diets can be leveraged to address malnutrition in tribal communities.


Subject(s)
Diet/ethnology , Ethnicity , Feeding Behavior , Health Knowledge, Attitudes, Practice , Micronutrients/administration & dosage , Nutritive Value , Residence Characteristics , Adult , Cross-Sectional Studies , Focus Groups , Humans , India , Malnutrition/diet therapy , Vitamin A/administration & dosage
8.
Indian J Med Inform ; 8(2): 52-56, 2014.
Article in English | MEDLINE | ID: mdl-26937128

ABSTRACT

OBJECTIVES: The study objective was to assess the gaps in current hospital health management information systems (ie. paper based records of prenatal, delivery, neonatal, discharge data) for environmental studies. This study also considers the feasibility of linking patient-level hospital data with ambient air pollution data recorded in real time by air quality monitoring stations. METHODS: This retrospective hospital based cohort study used a semi-ecologic design to explore the association of air pollution with a neonate's birth weight and gestational age. Maternal and neonatal data from 2007-2012 were encoded and linked with air pollution data based on distance to the nearest air quality monitoring station. Completeness and accuracy of neonatal anthropometric measures, maternal demographic information, nutritional status and maternal risk factors (gestational diabetes, anaemia, hypertension, etc.) were assessed. RESULTS: The records of 10,565 births in Sir Ganga Ram hospital in New Delhi were encoded and linked with real time air quality data. These were records of women who reported a New Delhi address during the time of delivery. The distance of each address to all the monitoring stations were recorded. Birth records were assigned pollution exposure levels averaged across records from monitoring stations within 10 kilometers of the address during the pregnancy period. CONCLUSION: This pilot study will highlight the potential of hospital management information system in linking administrative hospital record data with information on environmental exposure. The linked health-exposure dataset can then be used for studying the impact of various environmental exposures on health outcomes. Mother's educational attainment, occupation, residential history, nutritional status, tobacco and alcohol use during pregnancy need to be documented for better health risk assessments or case management. Health institutions can provide data for public health researchers and environmental scientists and can serve as the backbone of an environmental public health tracking system.

9.
Environ Int ; 36(7): 649-54, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20553999

ABSTRACT

OBJECTIVES: We measured concentrations of lead (Pb), manganese (Mn), chromium (Cr), and copper (Cu) in umbilical cord whole blood and examined sources of environmental Pb exposures in a predominantly African-American population. METHODS: Between April and July 2006, we collected reproductive histories, questionnaires, and blood samples from 102 women, aged 16-45 years, who delivered at a Memphis, TN hospital. RESULTS: The prevalence of preeclampsia and low birth weight infancy in the study population was 11% and 10%, respectively. Twenty-eight percent of mothers reported living near a potential Pb-contaminated area, while 43% lived in a residence built before 1978. Geometric mean (GM) concentrations for umbilical cord blood in the study population were 1.3, 3.5, 9.0, and 52.0 microg/dL for Pb, Mn, Cr, and Cu, respectively. Six neonates had cord blood Pb (CBL) concentrations above 10 microg/dL, while 20 had CBL concentrations > or =2 microg/dL. GM umbilical CBL levels were higher in neonates born to women living near a potential Pb-contaminated area (2.2 vs. 1.1 microg/dL) and those with friends, family or household members exposed to lead products (1.6 vs. 1.1 microg/dL). Some evidence of an exposure-response relationship was also detected between all four metal concentrations and an increasing number of maternal lead exposures. After adjustment for confounding, proximity to a Pb-contaminated area was the strongest environmental determinant of CBL levels among neonates with CBL concentrations of > or =2 microg/dL (odds ratio=5.1; 95% CI=1.6, 16.7). CONCLUSIONS: Metal concentrations were elevated in this population, and CBL levels were associated with proximity to Pb-contaminated areas.


Subject(s)
Environmental Exposure/analysis , Fetal Blood/metabolism , Metals/blood , Adolescent , Adult , Black or African American/ethnology , Chromium/blood , Cities , Copper/blood , Demography , Environmental Exposure/statistics & numerical data , Female , Humans , Infant, Newborn , Lead/blood , Male , Manganese/blood , Middle Aged , Tennessee/epidemiology , Tennessee/ethnology , Urban Population , Young Adult
10.
Environ Health Perspect ; 118(6): 742-8, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20129874

ABSTRACT

BACKGROUND: Pyrethroid insecticides are the most commonly used residential insecticides in the United States. OBJECTIVES: Our objective was to assess human exposure via biomonitoring to pyrethroid insecticides in a representative sample of the general U.S. population >or= 6 years of age. METHODS: By using isotope-dilution high-performance liquid chromatography/electrospray chemical ionization/tandem mass spectrometry, we measured five urinary metabolites of pyrethroid insecticides in 5,046 samples collected as a part of the 1999-2002 National Health and Nutrition Examination Survey (NHANES). Univariate, multivariate, and Pearson correlation analyses were performed using SUDAAN and SAS software, incorporating the appropriate sample weights into the analyses. Multivariate analyses included age, sex, race/ethnicity, creatinine, fasting status, and urine collection time as covariates. RESULTS: We detected 3-phenoxybenzoic acid (3PBA), a metabolite common to many pyrethroid insecticides, in more than 70% of the samples. The least-squares geometric mean (LSGM) concentration (corrected for covariates) of 3PBA and the frequency of detection increased from 1999-2000 (0.292 ng/mL) to 2001-2002 (0.318 ng/mL) but not significantly. Non-Hispanic blacks had significantly higher LSGM 3PBA concentrations than did non-Hispanic whites and Mexican Americans in the 2001-2002 survey period and in the combined 4-year survey periods but not in the 1999-2000 survey period. Children had significantly higher LSGM concentrations of 3PBA than did adolescents in both NHANES periods and than adults in NHANES 1999-2000. Cis- and trans-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid were highly correlated with each other and with 3PBA, suggesting that urinary 3PBA was derived primarily from exposure to permethrin, cypermethrin, or their degradates. CONCLUSIONS: Pyrethroid insecticide exposure in the U.S. population is widespread, and the presence of its metabolites in the urine of U.S. residents indicates that children may have higher exposures than adolescents and adults.


Subject(s)
Benzoates/urine , Environmental Monitoring/statistics & numerical data , Environmental Pollutants/urine , Insecticides/metabolism , Pyrethrins/metabolism , Adolescent , Adult , Black or African American , Age Factors , Benzoates/metabolism , Child , Creatinine/urine , Environmental Pollutants/metabolism , Humans , Least-Squares Analysis , Mexican Americans , Middle Aged , Multivariate Analysis , Nutrition Surveys , Sex Factors , United States , White People , Young Adult
11.
Pediatr Rep ; 2(1): e1, 2010 Jun 18.
Article in English | MEDLINE | ID: mdl-21589834

ABSTRACT

Rates of infant death are one of the most common indicators of a population's overall health status. Infant mortality rates (IMRs) are used to make broad inferences about the quality of health care, effects of health policies and even environmental quality. The purpose of our study was threefold: i) to examine the characteristics of births in the area in relation to gestational age and birthweight; ii) to estimate infant mortality using variable gestational age and/or birthweight criteria for live birth, and iii) to calculate proportional mortality ratios for each cause of death using variable gestational age and/or birthweight criteria for live birth. We conducted a retrospective analysis of all Shelby County resident-linked birth and infant death certificates during the years 1999 to 2004. Descriptive test statistics were used to examine infant mortality rates in relation to specific maternal and infant risk factors. Through careful examination of 1999-2004 resident-linked birth and infant death data sets, we observed a disproportionate number of non-viable live births (≤20 weeks gestation or ≤350 grams) in Shelby County. Issuance of birth certificates to these non-viable neonates is a factor that contributes to an inflated IMR. Our study demonstrates the complexity and the appropriateness of comparing infant mortality rates in smaller geographic units, given the unique characteristics of live births in Shelby County. The disproportionate number of pre-viable infants born in Shelby County greatly obfuscates neonatal mortality and de-emphasizes the importance of post-neonatal mortality.

12.
Toxicol Appl Pharmacol ; 233(1): 76-80, 2008 Nov 15.
Article in English | MEDLINE | ID: mdl-18561969

ABSTRACT

Biomonitoring has become a fundamental tool in both exposure science and clinical medicine. Despite significant analytical advances, the clinical use of environmental biomarkers remains in its infancy. Clinical use of environmental biomarkers poses some complex scientific and ethical challenges. The purpose of this paper is compare how the clinical and exposure sciences differ with respect to their interpretation and use of biological data. Additionally, the clinical use of environmental biomonitoring data is discussed. A case study is used to illustrate the complexities of conducting biomonitoring research on highly vulnerable populations in a clinical setting.


Subject(s)
Clinical Medicine/methods , Databases, Factual , Environmental Monitoring/methods , Biomarkers/analysis , Clinical Medicine/standards , Clinical Medicine/statistics & numerical data , Databases, Factual/standards , Databases, Factual/statistics & numerical data , Environmental Exposure/analysis , Environmental Exposure/statistics & numerical data , Environmental Monitoring/standards , Environmental Monitoring/statistics & numerical data , Environmental Pollutants/analysis , Environmental Pollutants/toxicity , Humans
13.
Am J Public Health ; 97(9): 1601-6, 2007 Sep.
Article in English | MEDLINE | ID: mdl-17666684

ABSTRACT

We examined trust in the army and perceptions of emergency preparedness among residents living near the Anniston, Ala, and Richmond, Ky, US Army chemical weapons stockpile sites shortly after September 11, 2001. Residents (n = 655) living near the 2 sites who participated in a cross-sectional population were relatively unprepared in the event of a chemical emergency. The events of September 11 gave rise to concerns regarding the security of stored chemical weapons and the sites' vulnerability to terrorist attacks. Although residents expressed trust in the army to manage chemical weapons safely, only a few expressed a desire to actively participate in site decisions. Compliance with procedures during emergencies could be seriously limited, putting residents in these sites at higher levels of risk of exposure to chemical hazards than nonresidents.


Subject(s)
Chemical Terrorism/prevention & control , Chemical Warfare Agents , Disaster Planning , Risk Assessment , Security Measures/standards , Social Perception , Trust , United States Government Agencies , Adult , Alabama , Attitude , Chemical Warfare Agents/adverse effects , Chemical Warfare Agents/supply & distribution , Cross-Sectional Studies , Data Collection , Female , Humans , Kentucky , Male , Middle Aged , Military Personnel , Residence Characteristics , Safety , Security Measures/organization & administration , September 11 Terrorist Attacks , United States
14.
Eval Health Prof ; 30(1): 47-63, 2007 Mar.
Article in English | MEDLINE | ID: mdl-17293608

ABSTRACT

Lawmakers at the state level require good estimates of those without health insurance in the areas they serve to inform policy decisions. These estimates are often built on inadequate data from smaller geographic areas, such as counties. The Small Area Estimates Branch of the U.S. Census Bureau developed a method to generate stable estimates at the county level using data from the Annual Social and Economic Supplement to the Current Population Survey and several other sources. Using data collected in the state of Tennessee, this article presents a less complicated and arguably less expensive alternative to that method, while providing comparable results. Limitations of both methods and suggestions for future research are discussed.


Subject(s)
Bayes Theorem , Medically Uninsured/statistics & numerical data , Models, Statistical , Small-Area Analysis , Adolescent , Adult , Aged , Employment , Ethnicity , Female , Health Status , Humans , Income , Male , Middle Aged , Risk Factors , Tennessee , Urban Population
15.
J Expo Sci Environ Epidemiol ; 17(5): 445-57, 2007 Aug.
Article in English | MEDLINE | ID: mdl-17164825

ABSTRACT

Hierarchical linear Models (HLM) is a useful way to analyze the relationships between community level environmental data, individual risk factors, and birth outcomes. With HLM we can determine the effects of potentially remediable environmental conditions (e.g., air pollution) after controlling for individual characteristics such as health factors and socioeconomic factors. Methodological limitations of ecological studies of birth outcomes and a detailed analysis of the varying models that predict birth weight will be discussed. Ambient concentrations of criterion air pollutants (e.g., lead and sulfur dioxide) demonstrated a sizeable negative effect on birth weight; while the economic characteristics of the mother's residential census tract (ex. poverty level) also negatively influenced birth weight.


Subject(s)
Air Pollutants/toxicity , Air Pollution/adverse effects , Birth Weight/drug effects , Environmental Exposure , Environmental Monitoring , Linear Models , Maternal Exposure/adverse effects , Air Pollution/statistics & numerical data , Birth Weight/physiology , Female , Humans , Infant, Newborn , Lead/toxicity , Maternal Exposure/statistics & numerical data , Pregnancy , Residence Characteristics , Risk Assessment , Risk Factors , Socioeconomic Factors , Sulfur Dioxide/toxicity , Surveys and Questionnaires
16.
Int J Health Geogr ; 4: 19, 2005 Aug 02.
Article in English | MEDLINE | ID: mdl-16076402

ABSTRACT

BACKGROUND: The purpose of this study is to examine the spatial and population (e.g., socio-economic) characteristics of low birthweight using two different cluster estimation techniques. We compared the results of Kulldorff's Spatial Scan Statistic with the results of Rushton's Spatial filtering technique across increasing sizes of spatial filters (circle). We were able to demonstrate that varying approaches exist to explore spatial variation in patterns of low birth weight. RESULTS: Spatial filtering results did not show any particular area that was not statistically significant based on SaTScan. The high rates, which remain as the filter size increases to 0.4, 0.5 to 0.6 miles, respectively, indicate that these differences are less likely due to chance. The maternal characteristics of births within clusters differed considerably between the two methods. Progressively larger Spatial filters removed local spatial variability, which eventually produced an approximate uniform pattern of low birth weight. CONCLUSION: SaTScan and Spatial filtering cluster estimation methods produced noticeably different results from the same individual level birth data. SaTScan clusters are likely to differ from Spatial filtering clusters in terms of population characteristics and geographic area within clusters. Using the two methods in conjunction could provide more detail about the population and spatial features contained with each type of cluster.

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