OBJECTIVE: To examine temporal trend in the national incidence of bronchiolitis hospitalizations, use of mechanical ventilation, and hospital charges between 2000 and 2009. METHODS: We performed a serial, cross-sectional analysis of a nationally representative sample of children hospitalized with bronchiolitis. The Kids Inpatient Database was used to identify children <2 years of age with bronchiolitis by International Classification of Diseases, Ninth Revision, Clinical Modification code 466.1. Primary outcome measures were incidence of bronchiolitis hospitalizations, mechanical ventilation (noninvasive or invasive) use, and hospital charges. Temporal trends were evaluated accounting for sampling weights. RESULTS: The 4 separated years (2000, 2003, 2006, and 2009) of national discharge data included 544 828 weighted discharges with bronchiolitis. Between 2000 and 2009, the incidence of bronchiolitis hospitalization decreased from 17.9 to 14.9 per 1000 person-years among all US children aged <2 years (17% decrease; Ptrend < .001). By contrast, there was an increase in children with high-risk medical conditions (5.9%–7.9%; 34% increase; Ptrend < .001) and use of mechanical ventilation (1.9%–2.3%; 21% increase; Ptrend = .008). Nationwide hospital charges increased from $1.34 billion to $1.73 billion (30% increase; Ptrend < .001); this increase was driven by a rise in the geometric mean of hospital charges per case from $6380 to $8530 (34% increase; Ptrend < .001). CONCLUSIONS: Between 2000 and 2009, we found a significant decline in bronchiolitis hospitalizations among US children. By contrast, use of mechanical ventilation and hospital charges for bronchiolitis significantly increased over this same period.

Kids' Inpatient Databases) of children (age ,2 years) hospitalized for bronchiolitis. We identified all children hospitalized with bronchiolitis by using International Classification of Diseases, Ninth Revision, Clinical Modification 466.1 and International Classification of Diseases, 10th Revision, Clinical Modification J21. Complex chronic conditions were defined by the pediatric complex chronic conditions classification by using inpatient data. The primary outcomes were the incidence of bronchiolitis hospitalizations, mechanical ventilation use, and hospital direct cost. We examined the trends accounting for sampling weights. RESULTS: From 2000 to 2016, the incidence of bronchiolitis hospitalization decreased from 17.9 to 13.5 per 1000 person-years in US children (25% decrease; P trend , .001). In contrast, the proportion of bronchiolitis hospitalizations among overall hospitalizations increased from 16% to 18% (P trend , .001). There was an increase in the proportion of children with a complex chronic condition (6%-13%; 117% increase), hospitalization to children's hospital (15%-29%; 93% increase), and mechanical ventilation use (2%-5%; 184% increase; all P trend , .

Key messagesd This large-scale cross-trait GWAS provides strong evidence for shared genetic components between obesityrelated metabolic traits and asthma subtypes.d The strongest positive genetic correlation was observed between obesity and later-onset asthma.d Mendelian randomization analysis provided strong evidence in support of BMI causally increasing the risk of asthma.

Importance Suicide is a leading cause of deaths in the U.S. Although the emergency department (ED) is an opportune setting for initiating suicide prevention efforts, ED-initiated suicide prevention interventions remain underdeveloped. Objective To determine if an ED-initiated intervention reduces subsequent suicidal behavior. Design This multicenter study was composed of three sequential phases: 1) Treatment as Usual (TAU) (August 2010–December 2011), 2) Universal Screening (Screening) (September 2011–December 2012, and 3) Universal Screening + Intervention (Intervention)(July 2012-November 2013. Setting Eight EDs in the United States Participants Adults with a recent suicidal attempt or ideation were enrolled. Intervention Universal Screening consisted of universal suicide risk screening. The Intervention phase consisted of universal screening plus an intervention which included secondary suicide risk screening by the ED physician, discharge resources, and post-ED telephone calls focused on reducing suicide risk. Main Outcomes The primary outcome was suicide attempts (non-fatal and fatal) over the 52-week follow-up. The proportion and total number of attempts were analyzed. Results 1,376 participants (56% female, median age 36 years) were recruited. 288 participants (21%) made at least one suicide attempt. There were 548 total suicide attempts among participants. There were no significant differences in risk reduction between the TAU and Screening phases (23% vs. 22%). However, when compared to the TAU Phase, subjects in the Intervention phase showed a 5 % absolute reduction in suicide attempt risk (23% vs. 18%) with a relative risk reduction of 20%. Participants in the Intervention Phase had 30% fewer total suicide attempts than participants in the TAU Phase. Negative binomial regression analysis indicated that the participants in the Intervention Phase had significantly fewer total suicide attempts than participants in the TAU Phase (IRR, 0.72, 95%CI 0.52–1.00, P=0.05), but no differences between the TAU and Screening phases (IRR, 1, 95%CI 0.71–1.41, P=0.99). Conclusions Among at-risk patients in the ED, a combination of brief interventions administered both during and after the ED visit decreased post-ED suicidal behavior.