Parental Depressive Symptoms and Children’s School Attendance and Emergency Department Use: A Nationally Representative Study

We sought to assess the association between parental depressive symptoms and school attendance and emergency department (ED) use among children with and without chronic health conditions. Secondary analysis of the 1997–2004 National Health Interview Survey, a nationally representative survey. Parental depressive symptoms were measured by three questions assessing sadness, hopelessness, or worthlessness in the past month. Children with and without asthma or attention-deficit/hyperactivity disorder (ADHD) were identified, and their school attendance and ED visits were reported by adult household respondents. Children with information on parental depressive symptoms, health conditions, and services use were eligible. We incorporated weights available in the survey for each eligible child to reflect the complex sampling design. 104,930 eligible children were identified. The point prevalence of parental depressive symptoms was low (1.8 %, 95 % CI 1.7–2.0), but greater among children with asthma (2.7 %, 95 % CI 2.4–3.0) and ADHD (3.8 %, 95 % CI 3.2–4.4) than among other children (1.6 %, 95 % CI 1.5–1.7). After adjustment for potential confounders, children whose parents reported depressive symptoms most or all of the time were more likely to report an ED visit (adjusted incident rate ratio [IRR] 1.18, 95 % CI 1.06–1.32) or school absence (adjusted IRR 1.36, 95 % CI 1.14–1.63) than children whose parents did not. The effect of parental depressive symptoms was not modified by child health conditions. Parental depressive symptoms were adversely associated with school attendance and ED use in children. These results suggest the importance of measuring depressive symptoms among adult caregivers of children.     

The Impact of Allergy and Pulmonary Specialist Care on Emergency Asthma Utilization in a Large Managed Care Organization

Objective. To evaluate the longitudinal impact of asthma specialist care on the risk of emergency department (ED) visits and hospitalization for asthma.
Data Sources/Study Setting. A prospective cohort study using both telephone survey and computerized utilization data.
Study Design. We recruited a prospective cohort of 4,742 adult members of a closed panel managed care organization who were hospitalized for asthma (the "baseline hospitalization").
Data Collection/Extraction Methods. Visits to asthma specialists were ascertained from computerized utilization databases. Specialist visits after baseline hospitalization were defined as time-dependent covariates. An alternative analysis defined specialist visits during the year preceding baseline hospitalization. A subcohort of 596 subjects completed telephone interviews.
Principal Findings. Compared with subjects who received no specialist visits after baseline hospitalization, treatment by allergists (hazard ratio (HR) 1.04; 95 percent confidence interval (CI) 0.87–1.26) or pulmonologists (HR 0.92; 95 percent CI 0.71–1.19) was not associated with a reduction in the risk of future ED visits for asthma in the entire cohort, controlling for age, sex, race, recent asthma medication dispensing, and pharmacy benefits status. There was also no association between allergist visits and the risk of subsequent hospitalizations for asthma (HR 0.93; 95 percent CI 0.75–1.14). In contrast, visits to pulmonologists (HR 0.74; 95 percent CI 0.55–0.99) were related to a reduced risk of rehospitalization.
Conclusions. Pulmonary specialist visits appeared to reduce the risk of hospitalization for asthma, whereas asthma specialist visits did not reduce the risk of ED visits. In the context of comprehensive prepaid health care, the benefit of specialist care was modest.     

Safety of measles and pertussis-containing vaccines in children with autism spectrum disorders

ObjectivesTo determine whether children aged 4–7 years with a diagnosis of autism spectrum disorders (ASD) were at increased risk of fever, febrile seizures, or emergency department (ED) visits following measles- or pertussis-containing vaccines compared with children without ASD.MethodsThe study included children born between 1995–2012, aged 4–7 years at vaccination, and members of six healthcare delivery systems within Vaccine Safety Datalink. We conducted self-controlled risk interval analyses comparing rates of outcomes in risk and control intervals within each group defined by ASD status, and then compared outcome rates between children with and without ASD, in risk and control intervals, by estimating difference-in-differences using logistic regressions.ResultsThe study included 14,947 children with ASD and 1,650,041 children without ASD. After measles- or pertussis-containing vaccination, there were no differences in association between children with and without ASD for fever (ratio of rate ratio for measles-containing vaccine = 1.07, 95% CI 0.58–1.96; for pertussis-containing vaccine = 1.16, 95% CI 0.63–2.15) or ED visits (ratio of rate ratio for measles-containing vaccine = 1.11, 95% CI 0.80–1.54; for pertussis-containing vaccine = 0.87, 95% CI 0.59–1.28). Febrile seizures were rare. Pertussis-containing vaccines were associated with small increased risk of febrile seizures in children without ASD.ConclusionChildren with ASD were not at increased risk for fever or ED visits compared with children without ASD following measles- or pertussis-containing vaccines. These results may provide further reassurance that these vaccines are safe for all children, including those with ASD.     

Rotavirus disease and health care utilisation among children under 5 years of age in highly developed countries: A systematic review and meta-analysis

BackgroundRotavirus (RV) infection is the leading cause of diarrhoea‐associated morbidity and mortality globally among children under 5 years of age. RV vaccination is available, but has not been implemented in many national immunisation plans, especially in highly developed countries. This systematic review aimed to estimate the prevalence and incidence of health care use for RV gastroenteritis (RVGE) among children aged under 5 years in highly developed countries without routine RV vaccination.MethodsWe searched MEDLINE and Embase databases from January 1^st 2000 to December 17^th 2018 for publications reporting on incidence or prevalence of RVGE‐related health care use in children below 5 years of age: primary care and emergency department (ED) visits, hospitalisations, nosocomial infections and deaths. We included only studies with laboratory‐confirmed RV infection, undertaken in highly developed countries with no RV routine vaccination plans. We used random effects meta-analysis to generate summary estimates with 95% confidence intervals (CI) and prediction intervals.ResultsWe screened 4033 abstracts and included 74 studies from 21 countries. Average incidence rates of RVGE per 100 000 person‐years were: 2484 (95% CI 697‐5366) primary care visits, 1890 (1597‐2207) ED visits, 500 (422‐584) hospitalisations, 34 (20–51) nosocomial infections and 0.04 (0.02–0.07) deaths. Average proportions of cases of acute gastroenteritis caused by RV were: 21% (95% CI 16‐26%) for primary care visits; 32% (25‐38%) for ED visits; 41% (36‐47%) for hospitalisations, 29% (25–34%) for nosocomial infections and 12% (8–18%) for deaths. Results varied widely between and within countries, and heterogeneity was high (I² > 90%) in most models.ConclusionRV in children under 5 years causes many healthcare visits and hospitalisations, with low mortality, in highly developed countries without routine RV vaccination. The health care use estimates for RVGE obtained by this study can be used to model RV vaccine cost-effectiveness in highly developed countries.     

Risk of Rehospitalization or Emergency Department Visit is Significantly Higher for Patients who Receive Their First Home Health Care Nursing Visit Later than 2 Days After Hospital Discharge

ObjectivesThis study explored the association between the timing of the first home health care nursing visits (start-of-care visit) and 30-day rehospitalization or emergency department (ED) visits among patients discharged from hospitals.DesignOur cross-sectional study used data from 1 large, urban home health care agency in the northeastern United States.Setting/ParticipantsWe analyzed data for 49,141 home health care episodes pertaining to 45,390 unique patients who were admitted to the agency following hospital discharge during 2019.MethodsWe conducted multivariate logistic regression analyses to examine the association between start-of-care delays and 30-day hospitalizations and ED visits, adjusting for patients’ age, race/ethnicity, gender, insurance type, and clinical and functional status. We defined delays in start-of-care as a first nursing home health care visit that occurred more than 2 full days after the hospital discharge date.ResultsDuring the study period, we identified 16,251 start-of-care delays (34% of home health care episodes), with 14% of episodes resulting in 30-day rehospitalization and ED visits. Delayed episodes had 12% higher odds of rehospitalization or ED visit (OR 1.12; 95% CI: 1.06–1.18) compared with episodes with timely care.Conclusions and ImplicationsThe findings suggest that timely start-of-care home health care nursing visit is associated with reduced rehospitalization and ED use among patients discharged from hospitals. With more than 6 million patients who receive home health care services across the United States, there are significant opportunities to improve timely care delivery to patients and improve clinical outcomes.     

Reduction in emergency department visits for children's asthma,ear infections,and respiratory infections after the introduction of state smoke-free legislation

Despite the benefits of smoke-free legislation on adult health, little is known about its impact on children's health. We examined the effects of tobacco control policies on the rate of emergency department (ED) visits for childhood asthma (N = 128,807), ear infections (N = 288,697), and respiratory infections (N = 410,686) using outpatient ED visit data in Massachusetts (2001 − 2010), New Hampshire (2001–2009), and Vermont (2002 − 2010). We used negative binomial regression models to analyze the effect of state and local smoke-free legislation on ED visits for each health condition, controlling for cigarette taxes and health care reform legislation. We found no changes in the overall rate of ED visits for asthma, ear infections, and upper respiratory infections after the implementation of state or local smoke-free legislation or cigarette tax increases. However, an interaction with children's age revealed that among 10–17-year-olds state smoke-free legislation was associated with a 12% reduction in ED visits for asthma (adjusted incidence rate ratios (aIRR) 0.88; 95% CI 0.83, 0.95), an 8% reduction for ear infections (0.92; 0.88, 0.97), and a 9% reduction for upper respiratory infections (0.91; 0.87, 0.95). We found an overall 8% reduction in ED visits for lower respiratory infections after the implementation of state smoke-free legislation (0.92; 0.87, 0.96). The implementation of health care reform in Massachusetts was also associated with a 6–9% reduction in all children's ED visits for ear and upper respiratory infections. Our results suggest that state smoke-free legislation and health care reform may be effective interventions to improve children's health by reducing ED visits for asthma, ear infections, and respiratory infections.     

Emergency department utilization during the first year of life among infants born to women at risk of disability

BackgroundWomen with disabilities are at risk for poor birth outcomes. Little is known about longer-term health and healthcare utilization of infants of women with disabilities.ObjectivesWe identified women at risk for disability and evaluated their infants’ emergency department (ED) utilization during the first year of life.Study designThis population-based cohort study used Massachusetts 2007–2009 birth certificates linked to 2007–2010 hospital discharge data. Access Risk Classification System categorized ICD-9 CM/CPT codes into disability risk categories. Infant ED visits were evaluated overall and by severity (emergent/intermediate vs. non-emergent). Cox proportional hazards models provided adjusted estimates. Results were stratified by gestational age (preterm, < 37 weeks, term, 37 + weeks).ResultsOf 218,599 women, 6.7% were at risk of disability. Infants born to women at risk had a higher rate of ED visits in their first year than infants born to women not at risk: 0.85 visits/person-year (95% CI 0.84–0.87) vs. 0.55 (0.55–0.55) for term, 0.74 (0.70–0.77) vs. 0.55 (0.54–0.56) for preterm. Utilization varied by maternal diagnosis. Emergent/intermediate and non-emergent visits were both elevated among infants born to women at risk for disability. In adjusted analyses, term infants of women with musculoskeletal diagnoses (HR = 1.3, 95% CI 1.2–1.4) and preterm infants of women with circulatory diagnoses (HR = 1.2, 1.0–1.3) had the highest hazards of ED visit vs. infants of women not at risk of disability.ConclusionMaternal disability risk is associated with postnatal infant ED utilization; utilization varies by maternal diagnosis. Interventions to improve health of infants born to women with disabilities are warranted.     

Asthma exacerbations among asthmatic children receiving live attenuated versus inactivated influenza vaccines

ObjectiveTo investigate whether there is a difference in the risk of asthma exacerbations between children with pre-existing asthma who receive live attenuated influenza vaccine (LAIV) compared with inactivated influenza vaccine (IIV).Material and methodsWe identified IIV and LAIV immunizations occurring between July 1, 2007 and March 31, 2014 among Kaiser Permanente Northern California members aged 2 to <18 years with a history of asthma, and subsequent asthma exacerbations seen in the inpatient or Emergency Department (ED) setting. We calculated the ratio of the odds (OR) of an exacerbation being in the risk interval (1–14 days) versus the comparison interval (29–42 days) following immunization, separately for LAIV and IIV, and then examined whether the OR differed between children receiving LAIV and those receiving IIV (“difference-in-differences”).ResultsAmong 387,633 immunizations, 85% were IIV and 15% were LAIV. Children getting LAIV vs. IIV were less likely to have “current or recent, persistent” asthma (25% vs. 47%), and more likely to have “remote history” of asthma (47% vs. 25%). Among IIV-vaccinated asthmatic children, the OR of an inpatient/ED asthma exacerbation was 0.97 (95% CI: 0.82–1.15). Among LAIV-vaccinated asthmatic children the OR was 0.38 (95% CI: 0.17–0.90). In the difference-in-differences analysis, the odds of asthma exacerbation following LAIV were less than IIV (Ratio of ORs: 0.40, CI: 0.17–0.95, p value: 0.04).ConclusionAmong children ≥2 years old with asthma, we found no increased risk of asthma exacerbation following LAIV or IIV, and a decreased risk following LAIV compared to IIV.     

Winter Temperature Inversions and Emergency Department Visits for Asthma in Salt Lake County, Utah, 2003�C2008

Background: Winter temperature inversions—layers of air in which temperature increases with altitude—trap air pollutants and lead to higher pollutant concentrations. Previous studies have evaluated associations between pollutants and emergency department (ED) visits for asthma, but none have considered inversions as independent risk factors for ED visits for asthma.Objective: We aimed to assess associations between winter inversions and ED visits for asthma in Salt Lake County, Utah.Methods: We obtained electronic records of ED visits for asthma and data on inversions, weather, and air pollutants for Salt Lake County, Utah, during the winters of 2003 through 2004 to 2007 through 2008. We identified 3,425 ED visits using a primary diagnosis of asthma. We used a time-stratified case-crossover design, and conditional logistic regression models to calculate odds ratios (ORs) and 95% confidence intervals (CIs) to estimate rate ratios of ED visits for asthma in relation to inversions during a 4-day lag period and prolonged inversions. We evaluated interactions between inversions and weather and pollutants.Results: After adjusting for dew point and mean temperatures, the OR for ED visits for asthma associated with inversions 0–3 days before the visit compared with no inversions during the lag period was 1.14 (95% CI: 1.00, 1.30). The OR for each 1-day increase in the number of inversion days during the lag period was 1.03 (95% CI: 1.00, 1.07). Associations were only apparent when PM₁₀ and maximum and mean temperatures were above median levels.Conclusions: Our results provide evidence that winter inversions are associated with increased rates of ED visits for asthma.     

Characterizing Emergency Department Use in Assisted Living

ObjectivesLittle is known about emergency department (ED) utilization among the nearly 1 million older adults residing in assisted living (AL) settings. Unlike federally regulated nursing homes, states create and enforce AL regulations with great variability, which may affect the quality of care provided. The objective of this study was to examine state variability in all-cause and injury-related ED use among residents in AL.DesignObservational retrospective cohort study.Setting and ParticipantsWe identified a cohort of 293,336 traditional Medicare beneficiaries residing in larger AL communities (25+ beds).MethodsWith Medicare enrollment and claims data, we identified ED visits and classified those because of injury. We present rates of all-cause and injury-related ED use per 100 person-years in AL, by state, adjusting for age, sex, race, dual-eligibility, and chronic conditions.ResultsRisk-adjusted state rates of all-cause ED visits ranged from 100.9 visits/100 AL person-years [95% confidence interval (CI) 92.8, 109.9] in New Mexico to 162.3 visits/100 AL person-years (95% CI 154.0, 174.7) in Rhode Island. The risk-adjusted rate of injury-related ED visits ranged from 18.7 visits/100 AL person-years (95% CI 17.2, 20.3) in New Mexico to 35.7 visits/100 AL person-years (95% CI 34.7, 36.8) in North Carolina.Conclusions and ImplicationsWe observed significant variability among states in all-cause and injury-related ED use among AL residents. There is an urgent need to better understand why this variability is occurring to prevent avoidable visits to the ED.     

Air pollution, aeroallergens and cardiorespiratory emergency department visits in Saint John, Canada

Existing studies of the association between air pollution, aeroallergens and emergency department (ED) visits have generally examined the effects of a few pollutants or aeroallergens on individual conditions such as asthma or chronic obstructive pulmonary disease. In this study, we considered a wide variety of respiratory and cardiac conditions and an extensive set of pollutants and aeroallergens, and utilized prospectively collected information on possible effect modifiers which would not normally be available from purely administrative data. The association between air pollution, aeroallergens and cardiorespiratory ED visits (n = 19,821) was examined for the period 1992 to 1996 using generalized additive models. ED visit, air pollution and aeroallergen time series were prefiltered using LOESS smoothers to minimize temporal confounding, and a parsimonious model was constructed to control for confounding by weather and day of week. Multipollutant and multi-aeroallergen models were constructed using stepwise procedures and sensitivity analyses were conducted by season, diagnosis, and selected individual characteristics or effect modifiers. In single-pollutant models, positive effects of all pollutants but NO2 and COH were observed on asthma visits, and positive effects on all respiratory diagnosis groups were observed for O3, SO2, PM10, PM2.5, and SO4(2-). Among cardiac conditions, only dysrhythmia visits were positively associated with all measures of particulate matter. In the final year-round multipollutant models, a 20.9% increase in cardiac ED visits was attributed to the combination of O3 (16.0%, 95% CI 2.8-30.9) and SO2 (4.9%, 95%CI 1.7-8.2) at the mean concentration of each pollutant. In the final multipollutant model for respiratory visits, O3 accounted for 3.9% of visits (95% CI 0.8-7.2), and SO2 for 3.7% (95% CI 1.5-6.0), whereas a weak, negative association was observed with NO2. In multi-aeroallergen models of warm season asthma ED visits, Ascomycetes, Alternaria and small round fungal spores accounted for 4.5% (95% CI 1.8-7.4), 4.7% (95% CI 1.0-8.6) and 3.0% (95% CI 0.8-5.1), respectively, of visits at their mean concentrations, and these effects were not sensitive to adjustment for air pollution effects. In conclusion, we observed a significant influence of the air pollution mix on cardiac and respiratory ED visits. Although in single-pollutant models, positive associations were noted between ED visits and some measures of particulate matter, in multipollutant models, pollutant gases, particularly ozone, exhibited more consistent effects. Aeroallergens were also significantly associated with warm season asthma ED visits.     

Physical Activity and Health Service Utilization Among Older People

BackgroundRising health care use among older people presents a challenge to medical care. Physical activity (PA) is beneficial; however, it is unknown if initiating PA among the very old reduces health service use. We examined the effects of changing PA levels on emergency room (ER) visits and hospitalization at ages 78 and 85.MethodsA representative sample (born 1920–1921) from the Jerusalem Longitudinal Cohort Study (1990–2010) were assessed at ages 78 and 85 for self-reported PA; ER visits and hospitalization; and social, functional, and medical domains.ResultsWe examined 896 and 1173 subjects at ages 78 and 85, respectively. ER usage at ages 78 and 85 respectively was lower among active subjects (15.8% vs 37.4%, P < .0001; 30.6% vs 50.8%, P < .0001), as was hospitalization (10.5% vs 16.7%, P < .05; 22.1% vs 37.8%, P < .0001). We adjusted for gender, education, loneliness, functional dependence, cognitive impairment, depression, diabetes, heart disease, hypertension, neoplasm, renal disease, self-rated health, body mass index, and smoking. PA at age 78 was associated with a reduced likelihood of ER visits (odds ratio [OR] 0.49, 95% confidence interval [CI] 0.27–0.89), but not hospitalization (OR 1.14, 95% CI 0.54–2.42); at age 85 with a reduced likelihood for ER visits (OR 0.72, 95% CI 0.52–0.99) and hospitalization (OR 0.68, 95% CI 0.48–0.98). Compared with subjects consistently active at ages 78 and 85, initiating PA between ages 78 and 85 resulted in similar lower likelihood of ER visits (OR 0.6, 95% CI 0.23–1.56) and hospitalization (OR 1.20, 95% CI 0.48–3.02); stopping PA and never being active between 78 and 85 were respectively associated with increased ER visits (OR 1.72, 95% CI 1.02–2.88; OR 2.18, 95% CI 1.04–4.57) and hospitalization (OR 1.85, 95% CI 1.06–3.23; OR 2.01, 95% CI 0.92–4.4).ConclusionsAmong the oldest old, not only continuing but also becoming physically active is associated with reduced health service use. Initiating PA among the very old should be encouraged.     

Ambient ozone and emergency department visits due to lower respiratory condition

Objectives

Ambient ozone (O₃) exposure is associated with a variety of health conditions. The objective of this study was to examine the effect of increased daily concentrations of ozone on emergency department (ED) visits due to lower respiratory diseases (LRD), such as acute or chronic bronchitis, in Edmonton, Canada.

Materials and Methods

Data concerning 10 years (1992–2002) were obtained from 5 Edmonton hospital Emergency Departments. Odds ratios (ORs) for ED visits associated with the increased ozone levels were calculated employing a case-crossover technique with a time-stratified strategy to define controls. In the constructed conditional logistic regression models, adjustments were made for daily number of influenza ED visits and weather variables using natural splines. ORs and their 95% confidence intervals (95% CI) were reported in relation to an increase in the interquartile range (IQR = 17.9 ppb) of the ground-level ozone.

Results

Overall, 48 252 ED visits due to LRD were identified, of which 53% were made by males. The presentations peaked in December (12%) and February (11.7%) and were the lowest in August (5.6%). Positive and statistically significant results were obtained for acute bronchitis: for same day (OR = 1.09, 95% CI: 1.05–1.13, lag 0) and for lag 2, lag 3–7 and 9 days; for chronic bronchitis: for lag 6, 7, and lag 9 days (OR = 1.11, 95% CI: 1.05–1.18, lag 9). For all ED visits for LRD, lag 0, lag 1, and lag 3–9 days showed positive and statistically significant associations (OR = 1.06, 95% CI: 1.03–1.09, lag 0).

Conclusions

These findings support the hypothesis concerning positive associations between ozone and the ED visits due to LRD.     

Cost-sharing for emergency care and unfavorable clinical events: findings from the safety and financial ramifications of ED copayments study

Objective. To evaluate the effect of emergency department (ED) copayment levels on ED use and unfavorable clinical events. Data Source/Study Setting. Kaiser Permanente–Northern California (KPNC), a prepaid integrated delivery system. Study Design. In a quasi‐experimental longitudinal study with concurrent controls, we estimated rates of ED visits, hospitalizations, ICU admissions, and deaths associated with higher ED copayments relative to no copayment, using Poisson random effects and proportional hazard models, controlling for patient characteristics. The study period began in January 1999; more than half of the population experienced an employer‐chosen increase in their ED copayment in January 2000. Data Collection/Extraction Methods. Using KPNC automated databases, the 2000 U.S. Census, and California state death certificates, we collected data on ED visits and unfavorable clinical events over a 36‐month period (January 1999 through December 2001) among 2,257,445 commercially insured and 261,091 Medicare insured health system members. Principal Findings. Among commercially insured subjects, ED visits decreased 12 percent with the $20–35 copayment (95 percent confidence interval [CI]: 11–13 percent), and 23 percent with the $50–100 copayment (95 percent CI: 23–24 percent) compared with no copayment. Hospitalizations, ICU admissions, and deaths did not increase with copayments. Hospitalizations decreased 4 percent (95 percent CI: 2–6 percent) and 10 percent (95 percent CI: 7–13 percent) with ED copayments of $20–35 and $50–100, respectively, compared with no copayment. Among Medicare subjects, ED visits decreased by 4 percent (95 percent CI: 3–6 percent) with the $20–50 copayments compared with no copayment; unfavorable clinical events did not increase with copayments, e.g., hospitalizations were unchanged (95 percent CI: ?3 percent to +2 percent) with $20–50 ED copayments compared with no copayment. Conclusions. Relatively modest levels of patient cost‐sharing for ED care decreased ED visit rates without increasing the rate of unfavorable clinical events.     

Implementation of Steps 1–9 to Successful Breastfeeding Reduces the Frequency of Mild and Severe Episodes of Diarrhea and Respiratory Tract Infection Among 0–6 Month Infants in Democratic Republic of Congo

Introduction

Global initiatives to improve breastfeeding practices have focused on the Ten Steps to Successful Breastfeeding. The aim of this study was to assess the effect of implementing Baby-Friendly Hospital Initiative (BFHI) steps 1–9 and BFHI steps 1–10 on incidence of diarrhea and respiratory illnesses in the first 6?months of life.

Methods

We reanalyzed a cluster randomized trial in which health-care clinics in Kinshasa, Democratic Republic of Congo, were randomly assigned to standard care (control group), BFHI steps 1–9, or BFHI steps 1–10. Outcomes included episodes of diarrhea and respiratory illness. Piecewise Poisson regression with generalized estimation equations to account for clustering by clinic was used to estimate incidence rate ratios (IRR) and 95% confidence intervals (CI).

Results

Steps 1–9 was associated with a decreased incidence of reported diarrhea (IRR 0.72, 95% CI 0.53, 0.99) and respiratory illness (IRR 0.48, 95% CI 0.37, 0.63), health facility visits due to diarrhea (IRR 0.60, 95% CI 0.42, 0.85) and respiratory illness (IRR 0.47, 95% CI 0.36, 0.63), and hospitalizations due to diarrhea (IRR 0.42, 95% CI 0.17, 1.06) and respiratory illness (IRR 0.33, 95% CI 0.11, 0.98). Addition of Step 10 attenuated this effect: episodes of reported diarrhea (IRR 1.24, 95% CI 0.93, 1.68) and respiratory illness (IRR 0.77, 95% CI 0.60, 0.99), health facility visits due to diarrhea (IRR 0.76, 95% CI 0.54, 1.08) and respiratory illness (IRR 0.75 95% CI 0.57, 0.97), and hospitalizations due to respiratory illness (IRR 0.48 95% CI 0.16, 1.40); but strengthened the effect against hospitalizations due to diarrhea (IRR 0.14, 95% CI 0.03, 0.60).

Conclusions

Implementation of steps 1–9 significantly reduced incidence of mild and severe episodes of diarrhea and respiratory infection in the first 6?months of life, addition of step 10 appeared to lessen this effect.

Trial Registration

NCT01428232.

     

Medicaid Expansion’s Impact on Emergency Department Use by State and Payer

ObjectivesThe Affordable Care Act’s Medicaid Expansion Program influences healthcare use by increasing insurance coverage. Of particular interest is how this will affect inefficient and expensive emergency department (ED) visits. We estimated the impact of the Medicaid expansion on ED use by states and payer (Medicaid, private insurance, and uninsured) 5 years after the implementation of the Medicaid expansion and illustrated the use of the generalized synthetic control method.MethodsIn this quasi-experiment study, we implemented the generalized synthetic control method to compare states with Medicaid expansion and states without Medicaid expansion. Data were from the Healthcare Cost Utilization Project Fast Stats, which cover >95% of all ED visits. We included states with complete data from 2010 to 2018.ResultsOverall, the Medicaid expansion increased Medicaid share of ED visits (average treatment effect on the treated [ATT] 11.39%; 95% confidence interval [CI] 8.76-14.02) and decreased private share of ED visits (ATT ?5.80%; 95% CI ?7.40 to ?4.12) and uninsured share of ED visits (ATT ?6.66%; 95% CI ?9.78 to ?3.55).ConclusionsMedicaid Expansion Program shifted ED payer mix to Medicaid ED visits from private insurance and uninsured ED visits for adults at age of 19 to 64 years, whereas its effect on total ED volume is mixed among states. States that experienced the largest increase in Medicaid enrollment seem to experience an increase in ED visits although such results did not reach statistical significance.     

Do Maternity Care Coordination Services Encourage Use of Behavioral Health Treatment among Pregnant Women on Medicaid?

ObjectiveMaternity care coordination (MCC) may provide an opportunity to enhance access to behavioral health treatment services. However, this relationship has not been examined extensively in the empirical literature. This study examines the effect of MCC on use of behavioral health services among perinatal women.MethodsMedicaid claims data from October 2008 to September 2010 were analyzed using linear fixed effects models to investigate the effects of receipt of MCC services on mental health and substance use–related service use among Medicaid-eligible pregnant and postpartum women in North Carolina (n = 7,406).ResultsReceipt of MCC is associated with a 20% relative increase in the contemporaneous use of any mental health treatment (within-person change in probability of any mental health visit 0.5% [95% CI, 0.1%–1.0%], or an increase from 8.3% to 8.8%); MCC in the prior month is associated with a 34% relative increase in the number of mental health visits among women who receive MCC (within-person change in the number of visits received 1.7% [95 CI, 0.2%–3.3%], or from 0.44 to 0.46 mental health visits). No relationship was observed between MCC and Medicaid-funded substance use–related treatment services.ConclusionsMCC may be an effective way to quickly address perinatal mental health needs and engage low-income women in mental health care. However, currently there may be a lost opportunity within MCC to increase access to substance use–related treatment. Future studies should examine how MCC improves access to mental health care such that the program's ability can be strengthened to identify women with substance use–related disorders and transition them into available care.     

Association between ozone and asthma emergency department visits in Saint John, New Brunswick, Canada.

This study examines the relationship of asthma emergency department (ED) visits to daily concentrations of ozone and other air pollutants in Saint John, New Brunswick, Canada. Data on ED visits with a presenting complaint of asthma (n = 1987) were abstracted for the period 1984-1992 (May-September). Air pollution variables included ozone, sulfur dioxide, nitrogen dioxide, sulfate, and total suspended particulate (TSP); weather variables included temperature, humidex, dewpoint, and relative humidity. Daily ED visit frequencies were filtered to remove day of the week and long wave trends, and filtered values were regressed on air pollution and weather variables for the same day and the 3 previous days. The mean daily 1-hr maximum ozone concentration during the study period was 41.6 ppb. A positive, statistically significant (p < 0.05) association was observed between ozone and asthma ED visits 2 days later, and the strength of the association was greater in nonlinear models. The frequency of asthma ED visits was 33% higher (95% CI, 10-56%) when the daily 1-hr maximum ozone concentration exceeded 75 ppb (the 95th percentile). The ozone effect was not significantly influenced by the addition of weather or other pollutant variables into the model or by the exclusion of repeat ED visits. However, given the limited number of sampling days for sulfate and TSP, a particulate effect could not be ruled out. We detected a significant association between ozone and asthma ED visits, despite the vast majority of sampling days being below current U.S. and Canadian standards.