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1.
AIDS Behav ; 28(3): 1039-1046, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37861923

ABSTRACT

Sexual and gender minorities (SGM) using online venues in India are usually not reached by government HIV interventions, remaining an understudied yet important population. We investigated sociodemographic characteristics, sexual behaviours along with familiarity, knowledge, and correlated factors around perceived accuracy of the Undetectable = Untransmittable (U = U) slogan. Grindr users in India completed an online, cross-sectional survey in May-June 2022. We included individuals ≥ 18 years old who reported sex with men (excluding those who were born female and or identified as cis-gender female). Associations with perceived U = U accuracy were estimated using adjusted prevalence odds ratios (aPOR) with 95% confidence intervals (95% CI). The survey was completed by 3,126 eligible participants. The median age was 28 years and most participants lived in urban areas and had graduate or postgraduate education. HIV prevalence was 3.1%. Only 14% reported familiarity with the U = U slogan and after an explanation was provided, 25% perceived it as completely accurate. This was associated with knowing their HIV status (HIV Negative aPOR 1.37 [95%CI 1.1, 1.71], HIV Positive aPOR 3.39 [95%CI 2.11, 5.46]), having heard of PrEP (aPOR1.58 [95%CI 1.29,1.92]) or have used PrEP (aPOR1.56 [95%CI 1.15, 2.12]) along with use of party drugs (aPOR1.51 [95%CI 1.0 2.10]), being in touch with NGOs (aPOR 1.61 [95%CI 1.27, 2.02], p < .001) and having attended LGBTQIA + events (aPOR1.38 [95%CI 1.1, 1.73]). SGMs in India had low familiarity and low perceived accuracy around U = U. Education about U = U and innovating new strategies to reach this hidden population could reduce stigma around HIV in India.


RESUMEN: Las minorías sexuales y de género (MSG) que utilizan sitios en línea en la India, generalmente no son alcanzadas por el gobierno a través de sus intervenciones contra el VIH aunque siguen siendo una población importante, pero poco estudiada. Se investigaron las características sociodemográficas, el comportamiento sexual y, adicionalmente, la familiaridad, el conocimiento y la percepción de exactitud sobre el eslogan Indetectable = Intransmisible (I = I). Los usuarios indios de Grindr completaron una encuesta transversal en línea entre mayo y junio del 2022. Se incluyeron a personas ≥ 18 años que informaron haber tenido relaciones sexuales con hombres (se excluyeron aquellas asignadas como mujer al nacer y que se identificaron como mujeres cisgénero). Las asociaciones con la precisión percibida de I = I se estimaron con razones de probabilidad de prevalencia ajustadas (aPR) con intervalos de confianza a 95% (IC 95%). En total, 3,126 participantes elegibles completaron la encuesta. La mediana de edad fue de 28 años, la mayoría vivían en áreas urbanas y eran graduados o posgraduados. La prevalencia del VIH fue de 3.1%. Solo 14% informó que conocía el eslogan I = I, pero incrementó a 25% después de que se proporcionó una explicación y lo percibieron como completamente exacto. Esto se asoció con conocer su estado serológico (aPR VIH negativo = 1.37 [IC 95%: 1.1, 1.71]; aPR VIH positivo = 3.39 [IC 95%: 2.11, 5.46]), tener conocimiento de la profilaxis preexposición (PrEP) (aPR = 1.58 [IC 95%: 1.29,1.92]), haber usado la PrEP (aPR = 1.56 [IC 95% 1.15, 2.12]), usado drogas con fines recreativos (aPR = 1.51 [IC 95%: 1.0, 2.10]), estar en contacto con las ONG (aPOR 1.61 [95%CI 1.27, 2.02], p < .001) y haber asistido a eventos LGBTIQA+ (aPR = 1.38 [IC 95%: 1.0, 2.10]). Las MSG en India tuvieron poco conocimiento y poca percepción de exactitud sobre el eslogan I = I. La educación sobre I = I y otras estrategias innovadoras de prevención para el VIH en esta población podría ayudar a reducir el estigma en torno a esta enfermedad en la India.


Subject(s)
HIV Infections , HIV Seropositivity , Sexual and Gender Minorities , Male , Humans , Female , Adult , Adolescent , Homosexuality, Male , HIV Infections/epidemiology , Cross-Sectional Studies , Smartphone , Sexual Behavior
2.
J Asthma ; 52(9): 881-8, 2015.
Article in English | MEDLINE | ID: mdl-26287793

ABSTRACT

BACKGROUND: A substantial proportion of low-income children with asthma living in rural western North Carolina have suboptimal asthma management. To address the needs of these underserved children, we developed and implemented the Regional Asthma Disease Management Program (RADMP); RADMP was selected as one of 13 demonstration projects for the National Asthma Control Initiative (NACI). METHODS: This observational intervention was conducted from 2009 to 2011 in 20 rural counties and the Eastern Band Cherokee Indian Reservation in western North Carolina. Community and individual intervention components included asthma education in-services and environmental assessments/remediation. The individual intervention also included clinical assessment and management. RESULTS: Environmental remediation was conducted in 13 childcare facilities and 50 homes; over 259 administrative staff received asthma education. Fifty children with mild to severe persistent asthma were followed for up to 2 years; 76% were enrolled in Medicaid. From 12-month pre-intervention to 12-month post-intervention, the total number of asthma-related emergency department (ED) visits decreased from 158 to 4 and hospital admissions from 62 to 1 (p < 0.0001). From baseline to intervention completion, lung function FVC, FEV1, FEF 25-75 increased by 7.2%, 13.2% and 21.1%, respectively (all p < 0.001), and average school absences dropped from 17 to 8.8 days. Healthcare cost avoided 12 months post-intervention were approximately $882,021. CONCLUSION: The RADMP program resulted in decreased ED visits, hospitalizations, school absences and improved lung function and eNO. This was the first NACI demonstration project to show substantial improvements in healthcare utilization and clinical outcomes among rural asthmatic children.


Subject(s)
Asthma/therapy , Community Health Services/organization & administration , Disease Management , Patient Education as Topic/organization & administration , Poverty , Rural Population , Absenteeism , Child , Child, Preschool , Emergency Service, Hospital/statistics & numerical data , Environment , Female , Health Expenditures/statistics & numerical data , Humans , Male , North Carolina , Racial Groups , Respiratory Function Tests , Severity of Illness Index
3.
J Asthma ; 51(1): 84-90, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24020680

ABSTRACT

OBJECTIVE: This study examined whether provider, caregiver and child communication predicted peak flow meter (PFM) use one month later. METHODS: Five practices, 35 providers and 296 children with persistent asthma and their caregivers comprised the study sample. Audio-recorded provider-caregiver-child communication during the baseline medical visit captured discussion of the PFM; and child and caregiver baseline interviews after the medical visit collected factors associated with PFM use. Child- and caregiver-reported PFM availability and use, and observed child use of PFM were collected one-month later in the family's home. RESULTS: During the medical visit, provider communication about PFM use was infrequent (10% maximum) and child- or caregiver-initiated communication was nearly absent (0%-2%). Despite this, children demonstrated good use of the PFM one month later. Children were significantly more likely to perform at least six PFM steps correctly one month later when there was more communication about PFM during the medical visit. Few other factors predicted availability and use. CONCLUSIONS: Few providers discussed use of a PFM; observed performance was predicted by having talked about it with the child's provider. Provider communication should be targeted in future interventions to improve asthma management skills.


Subject(s)
Asthma/physiopathology , Peak Expiratory Flow Rate , Respiratory Function Tests/instrumentation , Adolescent , Adult , Aged , Caregivers , Child , Female , Health Personnel , Humans , Male , Middle Aged , Physician-Patient Relations , Severity of Illness Index
4.
Prev Chronic Dis ; 11: E100, 2014 Jun 12.
Article in English | MEDLINE | ID: mdl-24921898

ABSTRACT

INTRODUCTION: When using emergency department (ED) data sets for public health surveillance, a standard approach is needed to define visits attributable to asthma. Asthma can be the first (primary) or a subsequent (2nd through 11th) diagnosis. Our study objective was to develop a definition of ED visits attributable to asthma for public health surveillance. We evaluated the effect of including visits with an asthma diagnosis in primary-only versus subsequent positions. METHODS: The study was a cross-sectional analysis of population-level ED surveillance data. Of the 114 North Carolina EDs eligible to participate in a statewide surveillance system in 2008-2009, we used data from the 111 (97%) that participated during those years. Included were all ED visits with an ICD-9-CM diagnosis code for asthma in any diagnosis position (1 through 11). We formed 11 strata based on the diagnosis position of asthma and described common chief complaint and primary diagnosis categories for each. Prevalence ratios compared each category's proportion of visits that received either asthma- or cardiac-related procedure codes. RESULTS: Respiratory diagnoses were most common in records of ED visits in which asthma was the first or second diagnosis, while primary diagnoses of injury and heart disease were more common when asthma appeared in positions 3-11. Asthma-related chief complaints and procedures were most common when asthma was the first or second diagnosis, whereas cardiac procedures were more common in records with asthma in positions 3-11. CONCLUSION: ED visits should be defined as asthma-related when asthma is in the first or second diagnosis position.


Subject(s)
Asthma/epidemiology , Emergency Service, Hospital/statistics & numerical data , Patient Discharge/statistics & numerical data , Public Health , Sentinel Surveillance , Adolescent , Asthma/diagnosis , Child , Child, Preschool , Cross-Sectional Studies , Current Procedural Terminology , Diagnosis-Related Groups/statistics & numerical data , Humans , Infant , Infant, Newborn , International Classification of Diseases , North Carolina/epidemiology , Severity of Illness Index
5.
J Asthma ; 50(7): 791-8, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23730868

ABSTRACT

OBJECTIVE: This study examined whether patient-provider communication is associated with asthma-related quality of life (QOL) and asthma outcomes among children with asthma and their caregivers. METHODS: Children ages 8-16 years with asthma and their caregivers (n = 296) were recruited at five pediatric practices in North Carolina. Children and caregivers reported demographic and clinical characteristics immediately after an audio-taped medical visit with their health care provider. During a home visit that took place 1 month after the medical visit, children and caregivers reported asthma-related QOL, and caregivers reported child asthma outcomes, including asthma symptom days and missed school days. Generalized estimating equations were used to determine whether patient-provider communication during the medical visit was associated with child and caregiver QOL and child asthma outcomes 1 month later. RESULTS: On average, providers asked caregivers 4.5 questions and asked children 3 questions per visit, whereas caregivers and children asked less than 1 question per visit. Providers asked children more asthma-related questions, caregivers reported better QOL and fewer asthma symptom days 1 month later. Children and caregivers with higher asthma-management self-efficacy at the office visit reported better QOL 1 month later. CONCLUSIONS: Mirroring national guideline recommendations, our results suggest that providers should ask children about their asthma during medical visits. Future longitudinal studies should conduct mediation analyses to determine whether asking children asthma-related questions during medical visits increases children's asthma management self-efficacy and ultimately improve outcomes, such as QOL, health care utilization, symptom days and missed school days.


Subject(s)
Asthma/psychology , Communication , Professional-Patient Relations , Adolescent , Caregivers , Child , Female , Health Personnel , Humans , Longitudinal Studies , Male , North Carolina , Office Visits , Quality of Life , Rural Population , Socioeconomic Factors , Tape Recording
6.
Qual Life Res ; 22(9): 2417-27, 2013 Nov.
Article in English | MEDLINE | ID: mdl-23378106

ABSTRACT

PURPOSE: This paper reports on the development and psychometric properties of self-reported pediatric fatigue item banks as part of the Patient-Reported Outcomes Measurement Information System (PROMIS). METHODS: Candidate items were developed by using PROMIS qualitative methodology. The resulting 39 items (25 tiredness related and 14 energy related) were field tested in a sample that included 3,048 participants aged 8-17 years. We used confirmatory factor analysis (CFA) to evaluate dimensionality and differential item functioning (DIF) analysis to evaluate parameter stability between genders and by age; we examined residual correlations to evaluate local dependence (LD) among items and estimated the parameters of item response theory (IRT) models. RESULTS: Of 3,048 participants, 48 % were males, 60 % were white, and 23 % had at least one chronic condition. CFA results suggest two moderately correlated factors. Two items were removed due to high LD, and three due to gender-based DIF. Two item banks were calibrated separately using IRT: Tired and (Lack of) Energy, which consisted of 23 and 11 items, respectively; 10- and 8-item short-forms were created. CONCLUSION: The PROMIS assessment of self-reported fatigue in pediatrics includes two item banks: Tired and (Lack of) Energy. Both demonstrated satisfactory psychometric properties and can be used for research settings.


Subject(s)
Fatigue , Psychometrics/instrumentation , Adolescent , Child , Factor Analysis, Statistical , Fatigue/physiopathology , Fatigue/psychology , Female , Humans , Male , Models, Theoretical , Quality of Life , Self Report , Surveys and Questionnaires
7.
Am J Emerg Med ; 31(9): 1393-6, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23910071

ABSTRACT

PURPOSE: The aim of this study was to describe population-based patterns of chronic obstructive pulmonary disease (COPD)-related emergency department (ED) visits. METHODS: We analyzed all COPD-related ED visits made by North Carolina residents 45 years or older in 2008 to 2009 using statewide surveillance system data. Return visits were identified when patients returned to the same ED within 3 or 14 days of a prior COPD-related visit. We quantify the prevalence of hospitalization and return visits by age, sex, and payment method and describe ED disposition patterns. RESULTS: Nearly half (46.3%) of the 97 511 COPD-related ED visits resulted in hospital admission. The percent of visits preceded by another COPD-related visit within 3 and 14 days was 1.6% and 6.2%, respectively. Emergency department-related hospitalizations increased with age; there were no differences by sex. Hospitalizations were less likely for uninsured, Medicare, and Medicaid visits than for privately insured visits. In contrast, 3- and 14-day return visits were more likely to be uninsured, Medicare, and Medicaid visits than privately insured visits. Fourteen-day returns were more likely to be made by men. Return visits initially increased with age compared with the 45- to 49-year age group, then decreased steadily after age 65 years. When return visits were made, discharge at both visits was the most common disposition pattern. However, 33.7% of 3-day returns and 22.7% of 14-day returns were discharged at the first visit and hospitalized upon returning to the ED. CONCLUSIONS: Chronic obstructive pulmonary disease-related hospital admissions and short-term return ED visits were common and varied by age and insurance status. Chronic obstructive pulmonary disease management remains a critical area for intervention and quality improvement.


Subject(s)
Emergency Service, Hospital/statistics & numerical data , Hospitalization/statistics & numerical data , Pulmonary Disease, Chronic Obstructive/therapy , Age Factors , Aged , Aged, 80 and over , Female , Humans , Male , Medicaid/statistics & numerical data , Medicare/statistics & numerical data , Middle Aged , North Carolina/epidemiology , Prevalence , Pulmonary Disease, Chronic Obstructive/epidemiology , Sex Factors , United States
8.
J Environ Health ; 75(10): 24-36, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23858663

ABSTRACT

The historically African-American Rogers-Eubanks community straddles unincorporated boundaries of two municipalities in Orange County, North Carolina, and predates a regional landfill sited along its border in 1972. Community members from the Rogers-Eubanks Neighborhood Association (RENA), concerned about deterioration of private wells and septic systems and a lack of public drinking water and sewer services, implemented a community-driven research partnership with university scientists and community-based organizations to investigate water and sewer infrastructure disparities and the safety of drinking and surface water supplies. RENA drafted memoranda of agreement with partners and trained community monitors to collect data (inventory households, map water and sewer infrastructure, administer household water and sewer infrastructure surveys, and collect drinking and surface water samples). Respondents to the surveys reported pervasive signs of well vulnerability (100%) and septic system failure (68%). Each 100-m increase in distance from the landfill was associated with a 600 most probable number/100 mL decrease in enterococci concentrations in surface water (95% confidence interval = -1106, -93). Pervasive private household water and sewer infrastructure failures and poor water quality were identified in this community bordering a regional landfill, providing evidence of a need for improved water and sanitation services.


Subject(s)
Black or African American , Residence Characteristics , Sanitary Engineering , Water Microbiology , Water Pollutants, Chemical/analysis , Water Supply , Adolescent , Adult , Aged , Health Surveys , Humans , Middle Aged , North Carolina , Poverty Areas , Refuse Disposal , Sewage , Waste Disposal, Fluid , Water Wells
9.
N C Med J ; 74(1): 9-17, 2013.
Article in English | MEDLINE | ID: mdl-23530373

ABSTRACT

BACKGROUND: Asthma is a prevalent, morbid, and costly chronic condition that may result in preventable exacerbations requiring emergency department (ED) care. In North Carolina we have limited information about the frequency and characteristics of asthma-related ED visits. METHODS: We estimated statewide population-based asthma-related ED visit rates in North Carolina, both overall and by age, sex, geography, insurance, and season. RESULTS: There were 86,700 asthma-related ED visits in North Carolina in 2008, representing 2.1% of all ED visits in the state. Substantial geographic variation existed, with rates ranging from 1.3 visits per 1,000 population in Ashe County to 21.0 visits per 1,000 population in Pasquotank County. Rates by age, sex, and month were consistent with the findings of other studies. Of asthma ED visits, 4.8% were preceded by another asthma visit to the same ED within 14 days. The proportion of patients who made at least 1 additional asthma visit to the same ED within 365 days was 23.5%; 11.6% of asthma ED patients met at least 1 criterion for being at high risk of hospitalization or death. LIMITATIONS: We lacked data on ED visits for asthma outside North Carolina, information about the accuracy of asthma diagnosis in the ED, patient identifiers that would allow linking across EDs, data on race or ethnicity, and data on urgent care utilization. CONCLUSIONS: We have characterized the burden of asthma in EDs across North Carolina, by county and among key subpopulations. These data can be used to target and evaluate local and statewide asthma-control policy efforts.


Subject(s)
Asthma/epidemiology , Emergency Service, Hospital/statistics & numerical data , Insurance Coverage/statistics & numerical data , Residence Characteristics/statistics & numerical data , Seasons , Adolescent , Adult , Age Distribution , Aged , Child , Child, Preschool , Female , Health Surveys , Humans , Infant , Infant, Newborn , Insurance, Health , Male , Middle Aged , North Carolina/epidemiology , Sex Distribution , Socioeconomic Factors , Young Adult
10.
J Asthma ; 49(9): 918-25, 2012 Nov.
Article in English | MEDLINE | ID: mdl-22974226

ABSTRACT

OBJECTIVE: This study investigated how provider demonstration of and assessment of child use of asthma medication devices and certain aspects of provider-patient communication during medical visits is associated with device technique 1 month later. METHODS: Two hundred and ninety-six children aged 8-16 years with persistent asthma and their caregivers were recruited at five North Carolina pediatric practices. All of the medical visits were audio-tape recorded. Children were interviewed 1 month later and their device technique was observed and rated. RESULTS: If the provider asked the child to demonstrate metered dose inhaler technique during the medical visit, then the child was significantly more likely to perform a greater percentage of inhaler steps correctly 1 month later. Children with higher asthma management self-efficacy scores were significantly more likely to perform a greater percentage of diskus steps correctly. Additionally, children were significantly more likely to perform a greater percentage of diskus steps correctly if the provider discussed a written action plan during the visit. Children were significantly more likely to perform a greater percentage of turbuhaler steps correctly if they asked more medication questions. CONCLUSIONS: Providers should ask children to demonstrate their inhaler technique during medical visits so that they can educate children about proper technique and improve child asthma management self-efficacy. Providers should encourage children to ask questions about asthma medication devices during visits and they should discuss asthma action plans with families.


Subject(s)
Asthma/therapy , Communication , Nebulizers and Vaporizers , Patient Education as Topic/methods , Administration, Inhalation , Adolescent , Age Factors , Child , Female , Humans , Male , Observer Variation , Self Efficacy , Severity of Illness Index , Sex Factors , Socioeconomic Factors
11.
Qual Life Res ; 21(4): 697-706, 2012 May.
Article in English | MEDLINE | ID: mdl-21785833

ABSTRACT

PURPOSE: The Patient-Reported Outcomes Measurement Information System (PROMIS) aims to develop patient-reported outcome (PROs) instruments for use in clinical research. The PROMIS pediatrics (ages 8-17) project focuses on the development of PROs across several health domains (physical function, pain, fatigue, emotional distress, social role relationships, and asthma symptoms). The objective of the present study was to report on the psychometric properties of the PROMIS Pediatric Anger Scale. METHODS: Participants (n = 759) were recruited from public school settings, hospital-based outpatient, and subspecialty pediatrics clinics. The anger items (k = 10) were administered on one test form. A hierarchical confirmatory factor analytic model (CFA) was conducted to evaluate scale dimensionality and local dependence. Item response theory (IRT) analyses were then used to finalize the item scale and short form. RESULTS: CFA confirmed that the anger items are representative of a unidimensional scale, and items with local dependence were removed, resulting in a six-item short form. The IRT-scaled scores from summed scores and each score's conditional standard error were calculated for the new six-item PROMIS Pediatric Anger Scale. CONCLUSIONS: This study provides initial calibrations of the anger items and creates the PROMIS Pediatric Anger Scale, version 1.0.


Subject(s)
Anger , Models, Theoretical , Patients/psychology , Surveys and Questionnaires , Adolescent , Child , Factor Analysis, Statistical , Female , Humans , Male , North Carolina , Psychometrics , Quality of Life , Texas
12.
J Asthma ; 48(10): 1022-31, 2011 Dec.
Article in English | MEDLINE | ID: mdl-22022958

ABSTRACT

OBJECTIVE: The purpose of this study was to examine (1) the extent to which caregivers and children asked asthma management questions during pediatric asthma visits; (2) the extent to which providers engaged in shared decision-making with these caregivers and children; and (3) the factors associated with question asking and shared decision-making. METHODS: Children aged 8-16 years with mild persistent asthma, moderate persistent asthma, or severe persistent asthma and their caregivers were recruited at five pediatric practices in non-urban areas of North Carolina. All of the medical visits were audio tape recorded. Generalized estimating equations were used to analyze the data. RESULTS: Only 13% of children and 33% of caregivers asked one or more questions about asthma management. Caregivers were more likely to ask questions about their child's medications. Providers obtained child input into their asthma management plan during only 6% of encounters and caregiver input into their child's asthma management plan during 10% of visits. CONCLUSION: Given the importance of involving patients during healthcare visits, providers need to consider asking for and including child and caregiver inputs into asthma management plans so that shared decision-making can occur more frequently.


Subject(s)
Asthma/therapy , Caregivers/psychology , Communication , Decision Making , Office Visits , Pediatrics , Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Primary Health Care
13.
Environ Res ; 111(6): 847-52, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21679938

ABSTRACT

BACKGROUND: Municipal solid waste landfills are sources of air pollution that may affect the health and quality of life of neighboring communities. OBJECTIVES: To investigate health and quality of life concerns of neighbors related to landfill air pollution. METHODS: Landfill neighbors were enrolled and kept twice-daily diaries for 14d about odor intensity, alteration of daily activities, mood states, and irritant and other physical symptoms between January and November 2009. Concurrently, hydrogen sulfide (H(2)S) air measurements were recorded every 15-min. Relationships between H(2)S, odor, and health outcomes were evaluated using conditional fixed effects regression models. RESULTS: Twenty-three participants enrolled and completed 878 twice-daily diary entries. H(2)S measurements were recorded over a period of 80d and 1-h average H(2)S=0.22ppb (SD=0.27; range: 0-2.30ppb). Landfill odor increased 0.63 points (on 5-point Likert-type scale) for every 1ppb increase in hourly average H(2)S when the wind was blowing from the landfill towards the community (95% confidence interval (CI): 0.29, 0.91). Odor was strongly associated with reports of alteration of daily activities (odds ratio (OR)=9.0; 95% CI: 3.5, 23.5), negative mood states (OR=5.2; 95% CI: 2.8, 9.6), mucosal irritation (OR=3.7; 95% CI=2.0, 7.1) and upper respiratory symptoms (OR=3.9; 95% CI: 2.2, 7.0), but not positive mood states (OR=0.6; 95% CI: 0.2, 1.5) and gastrointestinal (GI) symptoms (OR=1.0; 95% CI: 0.4, 2.6). CONCLUSIONS: Results suggest air pollutants from a regional landfill negatively impact the health and quality of life of neighbors.


Subject(s)
Air Pollutants/toxicity , Air Pollution , Health Status , Hydrogen Sulfide/toxicity , Odorants , Refuse Disposal/statistics & numerical data , Activities of Daily Living , Adolescent , Adult , Affect/drug effects , Aged , Air Pollutants/analysis , Environmental Monitoring/statistics & numerical data , Female , Humans , Hydrogen Sulfide/analysis , Irritants/toxicity , Male , Middle Aged , Mucous Membrane/drug effects , Quality of Life , Refuse Disposal/methods , Respiratory System/drug effects , Young Adult
14.
Environ Health ; 10: 49, 2011 May 24.
Article in English | MEDLINE | ID: mdl-21609456

ABSTRACT

BACKGROUND: Synoptic circulation patterns (large-scale tropospheric motion systems) affect air pollution and, potentially, air-pollution-morbidity associations. We evaluated the effect of synoptic circulation patterns (air masses) on the association between ozone and hospital admissions for asthma and myocardial infarction (MI) among adults in North Carolina. METHODS: Daily surface meteorology data (including precipitation, wind speed, and dew point) for five selected cities in North Carolina were obtained from the U.S. EPA Air Quality System (AQS), which were in turn based on data from the National Climatic Data Center of the National Oceanic and Atmospheric Administration. We used the Spatial Synoptic Classification system to classify each day of the 9-year period from 1996 through 2004 into one of seven different air mass types: dry polar, dry moderate, dry tropical, moist polar, moist moderate, moist tropical, or transitional. Daily 24-hour maximum 1-hour ambient concentrations of ozone were obtained from the AQS. Asthma and MI hospital admissions data for the 9-year period were obtained from the North Carolina Department of Health and Human Services. Generalized linear models were used to assess the association of the hospitalizations with ozone concentrations and specific air mass types, using pollutant lags of 0 to 5 days. We examined the effect across cities on days with the same air mass type. In all models we adjusted for dew point and day-of-the-week effects related to hospital admissions. RESULTS: Ozone was associated with asthma under dry tropical (1- to 5-day lags), transitional (3- and 4-day lags), and extreme moist tropical (0-day lag) air masses. Ozone was associated with MI only under the extreme moist tropical (5-day lag) air masses. CONCLUSIONS: Elevated ozone levels are associated with dry tropical, dry moderate, and moist tropical air masses, with the highest ozone levels being associated with the dry tropical air mass. Certain synoptic circulation patterns/air masses in conjunction with ambient ozone levels were associated with increased asthma and MI hospitalizations.


Subject(s)
Air Movements , Asthma/epidemiology , Myocardial Infarction/epidemiology , Ozone/adverse effects , Patient Admission/statistics & numerical data , Cities , Geographic Information Systems , Hospitalization/statistics & numerical data , Humans , North Carolina/epidemiology , Weather
16.
J Urban Health ; 87(4): 688-702, 2010 Jul.
Article in English | MEDLINE | ID: mdl-20499191

ABSTRACT

Asthma disproportionately affects non-whites in urban areas and those of low socioeconomic status, yet asthma's social patterning is not well-explained by known risk factors. We hypothesized that disadvantaged urban populations experience acute and chronic housing stressors which produce psychological stress and impact health through biological and behavioral pathways. We examined eight outcomes: six child respiratory outcomes as well as parent and child general health, using data from 682 low-income, Chicago parents of diagnosed and undiagnosed asthmatic children. We created a continuous exposure, representing material, social and emotional dimensions of housing stressors, weighted by their parent-reported difficulty. We compared the 75th to the 25th quartile of exposure in adjusted binomial and negative binomial regression models. Higher risks and rates of poor health were associated with higher housing stressors for six of eight outcomes. The risk difference (RD) for poor/fair general health was larger for children [RD = 6.28 (95% CI 1.22, 11.35)] than for parents [RD = 3.88 (95% CI -1.87, 9.63)]. The incidence rate difference (IRD) for exercise intolerance was nearly one extra day per 2 weeks for the higher exposure group [IRD = 0.88 (95% CI 0.41, 1.35)]; nearly one-third extra day per 2 weeks for waking at night [IRD = 0.32 (95% CI 0.01, 0.63)]; and nearly one-third extra day per 6 months for unplanned medical visits [IRD = 0.30 (95% CI 0.059, 0.54)]. Results contribute to the conceptualization of urban stress as a "social pollutant" and to the hypothesized role of stress in health disparities. Interventions to improve asthma outcomes must address individuals' reactions to stress while we seek structural solutions to residential stressors and health inequities.


Subject(s)
Asthma/epidemiology , Housing/statistics & numerical data , Poverty/statistics & numerical data , Stress, Psychological/complications , Urban Health/statistics & numerical data , Adolescent , Asthma/complications , Chicago/epidemiology , Child , Child, Preschool , Environmental Exposure/adverse effects , Female , Health Status Disparities , Humans , Incidence , Male , Risk Factors , Socioeconomic Factors
17.
J Asthma ; 47(3): 281-9, 2010 Apr.
Article in English | MEDLINE | ID: mdl-20235835

ABSTRACT

BACKGROUND: This cross-sectional study examines parents' perceptions of their neighborhoods and general and respiratory health among low-income Chicago families. Asthma disproportionately affects nonwhite, urban, and low socioeconomic status (SES) populations, but Chicago's burden, and the national epidemic, are not well explained by known risk factors. Urban dwellers experience acute and chronic stressors that produce psychological distress and are hypothesized to impact health through biological and behavioral pathways. Identifying factors that covary with lower SES and minority-group status-e.g., stress-is important for understanding asthma's social patterning. METHODS: We used survey data from 319 parents of children 5-13 years with asthma/respiratory problems and principal components analysis to create exposure variables representing parents' perceptions of two aspects of neighborhoods: collective efficacy ("CE") and physical/social order ("order"). Adjusted binomial regression models estimated risk differences (RDs) and 95% confidence intervals (CIs) for eight binary outcomes. RESULTS: Magnitude was generally as expected, i.e., RD for low- versus high- (most favorable) exposure groups (RD(low v. high)) was larger than for the middle versus high contrast (RD(mid v. high)). "Parent general health" was strongly associated with "CE" (RD(low v. high) = 20.8 [95% CI: 7.8, 33.9]) and "order" (RD(mid v. high) = 11.4 [95% CI: 2.1, 20.7]), unlike "child general health," which had nearly null associations. Among respiratory outcomes, only "waking at night" was strongly associated with "CE" (RD(low v. high) = 16.7 [95% CI: 2.8, 30.6]) and "order" (RD(low v. high) = 22.2 [95% CI: 8.6, 35.8]). "Exercise intolerance" (RD(low v. high) = 15.8 [95% CI: 2.1, 29.5]) and "controllability" (RD(mid v. high) = 12.0 [95% CI: 1.8, 22.3]) were moderately associated with "order" but not with "CE," whereas "school absences," "rescue medication use," and "unplanned visits" had nearly null associations with both exposures. CONCLUSIONS: More negative perceptions tended to be associated with higher risk of undesirable outcomes, adding to evidence that the social environment contributes to health and supporting research on stress' health impact among disadvantaged populations. Interventions must address not only traditional "environmental" factors, but also individuals' reactions to stress and attempt to mitigate effects of stressors while structural solutions to health inequities are sought.


Subject(s)
Asthma/etiology , Health Status , Parents , Socioeconomic Factors , Stress, Psychological/complications , Adolescent , Child , Child, Preschool , Cross-Sectional Studies , Female , Humans , Income , Male , Perception , Principal Component Analysis , Residence Characteristics
18.
J Asthma ; 47(6): 633-8, 2010 Aug.
Article in English | MEDLINE | ID: mdl-20632916

ABSTRACT

OBJECTIVES: The purpose of the study was to (a) describe the types of medication problems/concerns that asthmatic children and their caregivers reported and (b) examine the association between child and caregiver demographic and sociocultural characteristics and reported asthma medication problems/concerns. METHODS: Children ages 8 through 16 with mild, moderate, or severe persistent asthma and their caregivers were recruited at five pediatric practices in nonurban areas of North Carolina. Children were interviewed and caregivers completed questionnaires after their child's medical visits about reported problems/concerns in using asthma medications. Multivariate logistic regression was used to analyze the data. RESULTS: Three hundred and twenty children were recruited. Eighty-seven percent of the children reported a problem or concern in using their asthma medications. Approximately 40% of children reported side effects and a similar percent stated that it was hard to understand the directions on their medicines; in addition 60% reported that it was hard to remember when to take their medicines. Females and non-White children were significantly more likely to report they were not sure how to use an inhaler than males and White children. Younger and non-White children were significantly more likely to report it was hard to understand the directions on their medicines than older and White children. Caregivers were most likely to report that their children were bothered a little or a lot by side effects (31%) and a similar percent (29%) were not sure their children were using their inhalers properly. Caregivers without Medicaid were significantly more likely to report difficulty paying for the asthma medications. CONCLUSIONS: Medication side effects are a significant problem area for both children and their caregivers, and inhaler skill-based training is particularly needed for non-White children. Health care providers should discuss with children and their caregivers the types of problems/concerns that children may have when using their asthma medications.


Subject(s)
Anti-Asthmatic Agents/administration & dosage , Asthma/drug therapy , Caregivers , Adolescent , Asthma/psychology , Child , Female , Humans , Interviews as Topic , Logistic Models , Male , Nebulizers and Vaporizers , North Carolina , Patient Education as Topic , Rural Population , Socioeconomic Factors , Surveys and Questionnaires
19.
J Asthma ; 47(3): 295-302, 2010 Apr.
Article in English | MEDLINE | ID: mdl-20394514

ABSTRACT

BACKGROUND: Recently, the National Institutes of Health Roadmap for Medical Research initiative led a large-scale effort to develop the Patient-Reported Outcomes Measurement Information System (PROMIS). PROMIS's main goal was to develop a set of item banks and computerized adaptive tests for the clinical research community. Asthma, as the most common chronic childhood disease, was chosen for a disease-specific pediatric item bank. OBJECTIVES: The primary objective of this research is to present the details of the psychometric analyses of the asthma domain items. METHODS: Item response theory (IRT) analyses were conducted on a 34-asthma item bank. Test forms containing PROMIS Pediatric Asthma domain items were completed by 622 children ages 8 to 12. Items were subsequently evaluated for local dependence, scale dimensionality, and differential item functioning. RESULTS: A 17-item pool and an 8-item short form for the new PROMIS Pediatric Asthma Impact Scale (PAIS) were generated using IRT. The recommended 8-item short form contains the item set that provides the maximum test information at the mean (50) on the T-score metric. If more score precision is required, the complete 17-item pool is recommended and may be used in toto or as the basis of a computerized adaptive test (CAT). A shorter test form can also be created and scored on the same scale. CONCLUSIONS: The present study presents the PROMIS Pediatric Asthma Impact Scale (PAIS) developed with IRT, and provides the initial calibration data for the items.


Subject(s)
Asthma/therapy , Outcome Assessment, Health Care , Adolescent , Asthma/psychology , Child , Female , Humans , Male , Psychometrics
20.
J Asthma ; 47(7): 822-9, 2010 Sep.
Article in English | MEDLINE | ID: mdl-20707763

ABSTRACT

BACKGROUND: Obesity and asthma prevalence have both risen among children over the last several decades, and research efforts increasingly suggest that obesity is associated with asthma. Some, but not all, studies have shown that the effect of obesity on asthma is stronger among nonatopic individuals than among those with atopy. Systemic inflammation may be a factor in this relationship. OBJECTIVE: To examine the association of obesity with atopic and nonatopic asthma among U.S. children and to assess the role of C-reactive protein. DESIGN: Nationally representative data from the National Health and Nutrition Examination Survey (NHANES) were used to examine the relationship of weight to current asthma using logistic regression. Overweight was defined as ≥ 85th percentile of body mass index (BMI)-for-age and obesity was defined as ≥ 95th percentile of BMI-for-age. The presence of at least one positive allergen-specific immunoglobulin E (IgE) was used to stratify the relationship by atopic status in 2005-2006 data (n = 3387). Setting and Participants. Stratified, multistage probability sampling was used to identify survey participants. This analysis includes children ages 2-19 (n = 16,074) from the 1999-2006 NHANES who have information on BMI and current asthma. MAIN OUTCOME MEASURE: Self-report of doctor-diagnosed current asthma. RESULTS: Obesity was significantly related to current asthma among children and adolescents (odds ratio [OR]: 1.68, 95% confidence interval [CI]: 1.33, 2.12). The association was stronger in nonatopic children (OR: 2.46, 95% CI: 1.21, 5.02) than in atopic children (OR: 1.34, 95% CI: 0.70, 2.57) (interaction p value = .09). C-reactive protein levels were associated with current asthma in nonatopic children, but not after adjusting for BMI. CONCLUSION: Excess weight in children is associated with higher rates of asthma, especially asthma that is not accompanied by allergic disease.


Subject(s)
Asthma/epidemiology , Obesity/complications , Adolescent , Adult , Body Mass Index , C-Reactive Protein/analysis , Child , Child, Preschool , Data Collection , Female , Humans , Immunoglobulin E/blood , Male , Time Factors , Young Adult
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