Association of hospital and provider types on sickle cell disease outcomes

Sexually transmitted infection testing and diagnosis in adolescents and young adults with sickle cell disease

BACKGROUND

Sexually transmitted infections (STIs) are common and disproportionately affect Black adolescents and young adults (AYAs). Less is known about STIs among Black AYAs with chronic conditions, such as sickle cell disease (AYAs-SCD). This study compared STI testing and diagnosis between AYAs-SCD and their peers, overall and among STI-related encounters.

PROCEDURE

This retrospective, cross-sectional study used diagnosis and billing codes in the Pediatric Health Information System (PHIS) to identify inpatient and emergency department encounters from January 1, 2022 to May 31, 2023 among all AYAs 15-24 years and those with STI-related diagnoses (e.g., "cystitis"). STI testing and diagnosis rates were compared between AYAs-SCD, non-Black AYAs, and Black AYAs, controlling for age, sex, and encounter setting.

RESULTS

We identified 3602 AYAs-SCD, 177,783 Black AYAs, and 534,495 non-Black AYAs. AYAs-SCD were less likely to be tested for STIs than non-Black AYAs (odds ratio [OR] = 0.26; adj. p < .001) and Black AYAs (OR = 0.53; adj. p < .001). When tested, AYAs-SCD were more likely to be diagnosed with an STI than non-Black AYAs (OR = 2.39; adj. p = .006) and as likely as Black AYAs (OR = 0.67; adj. p = .15). Among STI-related encounters, AYAs-SCD were less likely to be tested than non-Black AYAs (OR = 0.18; adj. p < .001) and Black AYAs (OR = 0.44; adj. p < .001). No significant differences in STI diagnoses were found in this subset between AYAs-SCD and non-Black AYAs (OR = 0.32; adj. p = .28) or Black AYAs (OR = 1.07; adj. p = .99).

CONCLUSIONS

STI care gaps may disproportionately affect AYAs-SCD. STIs should be considered when evaluating symptomatic AYAs-SCD in acute settings. More research is needed to further contextualize STI care for AYAs-SCD.

Outcomes for Young Adults With Suicide Admitted to Adult Versus Pediatric Hospitals

OBJECTIVES

To evaluate differences in care and outcomes for young adults admitted with suicide ideation (SI) or attempt (SA) to medical units of an adult (AH) versus pediatric hospital (PH).

METHODS

Demographic and clinical characteristics were collected on patients aged 18 to 25 years admitted to either an AH or PH at an academic health system from September 2017 through June 2023 with a diagnosis of SI or SA. Outcomes measured were discharge location, length of stay (LOS), emergency department (ED) visit or hospital readmission, and inpatient consultations. Bivariate tests and multivariate regression were used to determine association of admission location and outcomes.

RESULTS

Of 212 patients included, 54% were admitted to an AH and 46% to a PH. Admission to a PH compared with an AH was associated with shorter ED LOS (4.3 vs 7.3 hours, P < .01) and discharge to home (57% vs 42%, P = .028) on bivariate but not adjusted analysis. Admission location was not associated with hospital LOS, ED visit or medical readmission after discharge, or psychiatry consultation. Admission to a PH compared with an AH was associated with higher odds of psychology consultation (29 vs 3%, P < .01).

CONCLUSIONS

Although young adults admitted to a PH for SI/SA had higher rates of psychology consultation, they otherwise had similar care and outcomes regardless of admission to an AH versus a PH. Further work is needed to determine if observed differences are generalizable and how they affect hospital throughput and long-term outcomes.

Adult Inpatient Services in Pediatric Hospitals: A National Mixed Methods Study

OBJECTIVES

Some pediatric institutions have developed adult inpatient services to enable quality care of hospitalized adults. Our objectives were to understand the characteristics of these adult inpatient services in pediatric hospitals, barriers and facilitators to their creation and sustainability, and patient and system needs they addressed.

METHODS

An explanatory mixed methods study was conducted using a distribution of an electronic survey followed by targeted semi-structured interviews of directors (or designates) of adult inpatient services in US pediatric hospitals. The survey identified institutional demographics, service line characteristics, and patient populations. An interview guide was created to explore survey findings and facilitators and barriers in the creation of adult inpatient services. Interviews were conducted after survey completion. A codebook was created using an inductive thematic approach and iteratively refined. Final themes were condensed, and illustrative quotes selected.

RESULTS

Ten institutions identified as having an adult inpatient service. Service staffing models varied, but all had dually trained internal medicine and pediatrics physicians. All participants voiced their respective pediatric institutions valued that these services filled a clinical care gap for hospitalized adults adding to whole-person care, patient safety, and health system navigation.

CONCLUSIONS

Adult inpatient services in pediatric institutions have been present for >15 years. These services address clinical care gaps for adults hospitalized in pediatric institutions and use specialized internal medicine and pediatrics knowledge. Demonstrating return on investment of these services using a traditional fee for service model is a barrier to creation and sustainability.

Characteristics and Outcomes of Young Adult Patients with Severe Sepsis Admitted to Pediatric Intensive Care Units Versus Medical/Surgical Intensive Care Units

Purpose: Young adults receive severe sepsis treatment across pediatric and adult care settings. However, little is known about young adult sepsis outcome differences in pediatric versus adult hospital settings. Material and Methods: Using Truven MarketScan database from 2010-2015, we compared in-hospital mortality and hospital length of stay in young adults ages 18-26 treated for severe sepsis in Pediatric Intensive Care Units (PICUs) versus Medical ICUs (MICUs)/Surgical ICUs (SICUs) using logistic regression models and accelerated time failure models, respectively. Comorbidities were identified using Complex Chronic Conditions (CCC) and Charlson Comorbidity Index (CCI). Results: Of the 18 900 young adults hospitalized with severe sepsis, 163 (0.9%) were treated in the PICU and 952 (5.0%) in the MICU/SICU. PICU patients were more likely to have a comorbid condition compared to MICU/SICU patients. Compared to PICU patients, MICU/SICU patients had a lower odds of in-hospital mortality after adjusting for age, sex, Medicaid status, and comorbidities (adjusting for CCC, odds ratio [OR]: 0.50, 95% CI 0.29-0.89; adjusting for CCI, OR: 0.51, 95% CI 0.29-0.94). There was no difference in adjusted length of stay for young adults with severe sepsis (adjusting for CCC, Event Time Ratio [ETR]: 1.14, 95% CI 0.94-1.38; adjusting for CCI, ETR: 1.09, 95% CI 0.90-1.33). Conclusions: Young adults with severe sepsis experience higher adjusted odds of mortality when treated in PICUs versus MICU/SICUs. However, there was no difference in length of stay. Variation in mortality is likely due to significant differences in the patient populations, including comorbidity status.

What Types of Hospitals Do Adolescents and Young Adults With Complex Chronic Conditions Use?

BACKGROUND AND OBJECTIVE

Hospitalizations for children with complex chronic conditions (CCC) at pediatric hospitals have risen over time. Little is known about what hospital types, pediatric or adult, adolescents, and young adults (AYA) with CCCs use. We assessed the types of hospitals used by AYAs with CCCs.

METHODS

We performed a cross-sectional study of 856,120 hospitalizations for AYAs ages 15-to-30 years with ≥1 CCC in the 2017 National Inpatient Sample. We identified AYA with CCC by ICD-10-CM diagnosis codes using the pediatric CCC classification system version 2. Hospital types included pediatric hospitals (n = 70), adult hospitals with pediatric services (n = 277), and adult hospitals without pediatric services (n = 3975). We analyzed age trends by hospital type and CCC count in 1-year intervals and dichotomously (15-20 vs 21-30 years) with the Cochran-Armitage test.

RESULTS

The largest change in pediatric hospitals used by AYA with CCCs occurred between 15 and 20 years with 39.7% versus 7.7% of discharges respectively (P< 0.001). For older AYA (21 to 30 years), 1.0% of discharges occurred at pediatric hospitals, compared with 65.6% at adult hospitals without pediatric services (P < 0.001). Older AYA at pediatric hospitals had more technology dependence (42.5%) versus younger AYA (27.6%, p < 0.001).

CONCLUSIONS

Most discharges for AYAs ≥21 years with CCCs were from adult hospitals without pediatric services. Higher prevalence of technology dependence and neuromuscular CCCs, as well as multiple CCCs, for AYA 21-to-30 years discharged from pediatric hospitals may be related to specific care needs only found in pediatric settings and challenges transferring into adult hospital care.

Life-Threatening Acute Chest Syndrome in a Patient With Sickle Cell Disease After Switching From Hydroxyurea Therapy to Partial Exchange Transfusions: A Case Report

Acute chest syndrome (ACS) is a severe form of vaso-occlusive crisis, which is a main feature of sickle cell disease (SCD), an inherited hemoglobinopathy. Traditionally, hydroxyurea has been the treatment of choice for SCD to prevent vaso-occlusive crises including ACS. However, hydroxyurea may be contraindicated, for example, in patients wanting to have children. We here present a young male with SCD who wanted to become a father and developed a life-threatening episode of ACS following discontinuation of hydroxyurea and switching to partial exchange blood transfusions. The patient, aged 32 years and originally from Bahrain, had been diagnosed with homozygous SCD, alpha-thalassemia, and glucose-6-phosphate dehydrogenase deficiency as a child. He had an episode of ACS with moderate severity in 2008, after which he started using hydroxyurea. From 2008 until the present, he did not experience any episodes of ACS. About six months before the present episode, he stopped using hydroxyurea and switched to partial exchange transfusions, aiming to keep hemoglobin S (HbS) below 30%. The interval between the transfusions was typically about seven to eight weeks. On the evening (day 1) before hospital admission, he developed typical symptoms and signs of vaso-occlusive crisis, and during the first day in the hospital (HbS about 55%), his pulmonary function deteriorated, and he also developed cerebral symptoms (somnolence and confusion). On suspicion of ACS, a full blood exchange transfusion was administered on day 3. He then gradually recovered clinically, and his laboratory values also normalized. He was discharged on day 10. Subsequent follow-up visits at the outpatient clinic the following month were unremarkable. Possibly, this severe episode of ACS was triggered by switching from hydroxyurea therapy to partial exchange transfusions with too long intervals between the transfusions. This novel case is a compelling reminder of the possible perils that may accompany the discontinuation of hydroxyurea, the best-documented therapy in SCD.

Trends in Regionalization of Emergency Care for Common Pediatric Conditions

BACKGROUND

For children who cannot be discharged from the emergency department, definitive care has become less frequent at most hospitals. It is uncertain whether this is true for common conditions that do not require specialty care. We sought to determine how the likelihood of definitive care has changed for 3 common pediatric conditions: asthma, croup, and gastroenteritis.

METHODS

We used the Nationwide Emergency Department Sample database to study children <18 years old presenting to emergency departments in the United States from 2008 to 2016 with a primary diagnosis of asthma, croup, or gastroenteritis, excluding critically ill patients. The primary outcome was referral rate: the number of patients transferred among all patients who could not be discharged. Analyses were stratified by quartile of annual pediatric volume. We used logistic regression to determine if changes over time in demographics or comorbidities could account for referral rate changes.

RESULTS

Referral rates increased for each condition in all volume quartiles. Referral rates were greatest in the lowest pediatric volume quartile. Referral rates in the lowest pediatric volume quartile increased for asthma (13.6% per year; 95% confidence interval [CI] 5.6%-22.2%), croup (14.8% per year; 95% CI 2.6%-28.3%), and gastroenteritis (16.4% per year; 95% CI 3.5%-31.0%). Changes over time in patient age, sex, comorbidities, weekend presentation, payer mix, urban-rural location of presentation, or area income did not account for these findings.

CONCLUSIONS

Increasing referral rates over time suggest decreasing provision of definitive care and regionalization of inpatient care for 3 common, generally straightforward conditions.

Acute Care Utilization at End of Life in Sickle Cell Disease: Highlighting the Need for a Palliative Approach

Background: People with sickle cell disease (SCD) have a life expectancy of <50 years, so understanding their end-of-life care is critical. Objective: We aimed to determine where individuals with SCD were dying and their patterns of care in the year preceding death to highlight end-of-life research priorities and possible opportunities for intervention. Design: Using the California SCD Data Collection Program database (containing administrative data, vital records, and Medicaid claims), we examined people with SCD who died between 2006 and 2015 (cases) at age <80 years and examined their hospital and emergency department (ED) utilization in their last year of life. Comparators included living controls with SCD matched 1:1 based on age, analysis year, insurance, and income. Results: We identified 486 people with SCD (cases) who died at a median age of 45 years (SD: 16 years). Most died in the hospital (63%) and ED (15%). In their last year of life, people with SCD were hospitalized for an average of 42 days (SD: 49 days) over five admissions. Inpatient admissions and ED visits were stable throughout the year until the month before death when acute care utilization sharply increased. In their last year of life, cases had more hospitalizations than controls, but similar ED utilization. Conclusions: People with SCD are dying acutely at a young age and most die in the hospital and the ED. Since clinicians caring for people with SCD currently cannot predict which acute events may be life-threatening, a comprehensive palliative approach to people with SCD must extend beyond chronic pain management and psychosocial support to include advance care planning.

Temporal Trends and Center Variation in Early Antibiotic Use Among Premature Infants

IMPORTANCE

Premature infants are frequently administered empirical antibiotic therapy at birth. Early and prolonged antibiotic exposures among infants without culture-confirmed infection have been associated with increased risk of adverse outcomes.

OBJECTIVE

To examine early antibiotic use among premature infants over time and across hospitals in the United States.

DESIGN, SETTING, AND PARTICIPANTS

This retrospective cohort study used a comprehensive administrative database of inpatient encounters from 297 academic and community hospitals across the United States to examine data concerning very low-birth-weight (VLBW) infants (<1500 g), including extremely low-birth-weight (ELBW) infants (<1000 g), who were admitted to the neonatal intensive care unit and survived for at least 1 day. Data collection took place in November 2015 and analysis took place from February 2016 to November 2016.

EXPOSURES

Antibiotic initiation within the first 3 days of age and subsequent antibiotic administration for more than 5 days.

MAIN OUTCOMES AND MEASURES

Temporal trends in early antibiotic initiation and duration from 2009 to 2015, and center variation in early antibiotic use from 2014 to 2015.

RESULTS

We identified 40 364 VLBW infants (20 447 female [50.7%]) who survived for at least 1 day, including 12 947 ELBW infants, from 297 centers. The majority of premature infants had early antibiotic initiation (31 715 VLBW infants [78.6%] and 11 264 ELBW infants [87.0%]), and no differences were observed over time in temporal trend analyses (P = .12 for VLBW and P = .52 for ELBW). The annual risk difference in the proportion of VLBW infants administered early antibiotic therapy ranged from -0.75% (95% CI, -1.61% to 0.11%) to -0.87% (95% CI, -2.04% to 0.30%); in ELBW infants the annual risk difference ranged from -0.34% (95% CI, -1.28% to 0.61%) to -0.38% (95% CI, -1.61% to 0.85%). There was a small but significant decrease over time in the rate of prolonged antibiotic duration for VLBW infants (P = .02), but not for ELBW infants (P = .22). The annual risk difference in the proportion of VLBW infants with prolonged antibiotic duration ranged from -0.94% (95% CI, -1.65% to -0.23%) to -1.08% (95% CI, -2.00% to -0.16%); in ELBW infants the annual risk difference ranged from -0.72% (95% CI, -1.83% to 0.39%) to -0.75% (95% CI, -1.96% to 0.46%). We also observed variation in early antibiotic exposures across centers. Sixty-nine of 113 centers (61.1%) started antibiotic therapy for more than 75% of VLBW infants, and 56 of 66 centers (84.8%) started antibiotic therapy for more than 75% of ELBW infants. The proportion of VLBW and ELBW infants administered prolonged antibiotics ranged from 0% to 80.4% and 0% to 92.0% across centers, respectively.

CONCLUSIONS AND RELEVANCE

Most premature infants in this study received empirical early antibiotic therapy with little change over a recent 7-year period. The variability in exposure rates across centers, however, suggests that neonatal antimicrobial stewardship efforts are warranted to optimize antibiotic use for VLBW and ELBW infants.

Left Ventricular Dilation: When Pediatric Meet Adult Guidelines

Measuring and grading left ventricular (LV) size is essential for diagnostic, treatment, and prognostic purposes. Guidelines for quantifying LV size exist for pediatric and adult patients via M-mode measurements, but no data exist determining how well they agree with one another. The goal of this study was to determine the agreement between pediatric echocardiographic readers (PER), pediatric guidelines, and adult guidelines in assessing LV dilation. A retrospective review of all noncongenital echocardiograms from 9/2002 to 11/2015 that had a left ventricular end-diastolic diameter (LVEDD) >5.8 cm for males and >5.2 cm for females was performed. LV size was graded as normal (Z-score ≤ 2), mild (2 < Z-score ≤ 3), moderate (3 < Z-score ≤ 4), or severe (4 < Z-score) based on pediatric and adult guidelines. PER interpretation was also recorded. Agreement between LV size assessments was determined for these three interpretations. A total of 1489 echocardiograms met the inclusion criteria (654 males:835 females). Males were 19.0 ± 6.9 years old and had a BSA of 1.9 ± 0.3 m², and LVEDD was 6.3 ± 0.5 cm. Females were 18.7 ± 8.3 years old and had a BSA of 1.8 ± 0.3 m², and LVEDD was 5.7 ± 0.5 cm. There was a 63.91% agreement for males and an 81.8% agreement for females between PER and pediatric guidelines in assessing LV size. There was a 39.14% agreement for males and a 14.13% agreement for females between PER and adult guidelines in assessing LV size. There was a 41.44% agreement for males and a 14.49% agreement for females between adult and pediatric guidelines in assessing LV size. These agreement percentages did not change significantly when separating the population into greater than or less than 18 years of age cohorts. Pediatric echocardiographic readers were more consistent in following pediatric guidelines than adult guidelines in assessing LV size. The agreement for PER and pediatric guidelines was poor, especially for females, in relation to adult guidelines when assessing LV size. Further standardization and guidelines are needed for pediatric patients that are adult size.

Association of Guideline-Adherent Antibiotic Treatment With Readmission of Children With Sickle Cell Disease Hospitalized With Acute Chest Syndrome

IMPORTANCE

Acute chest syndrome (ACS) is a common, serious complication of sickle cell disease (SCD) and a leading cause of hospitalization and death in both children and adults with SCD. Little is known about the effectiveness of guideline-recommended antibiotic regimens for the care of children hospitalized with ACS.

OBJECTIVES

To use a large, national database to describe patterns of antibiotic use for children with SCD hospitalized for ACS and to determine whether receipt of guideline-adherent antibiotics was associated with lower readmission rates.

DESIGN, SETTING, AND PARTICIPANTS

Retrospective cohort study including 14 480 hospitalizations in 7178 children (age 0-22 years) with a discharge diagnosis of SCD and either ACS or pneumonia. Information was obtained from 41 children's hospitals submitting data to the Pediatric Health Information System from January 1, 2010, to December 31, 2016.

EXPOSURES

National Heart, Lung, and Blood Institute guideline-adherent (macrolide with parenteral cephalosporin) vs non-guideline-adherent antibiotic regimens.

MAIN OUTCOMES AND MEASURES

Acute chest syndrome-related and all-cause 7- and 30-day readmissions.

RESULTS

Of the 14 480 hospitalizations, 6562 (45.3%) were in girls; median (interquartile range) age was 9 (4-14) years. Guideline-adherent antibiotics were provided in 10 654 of 14 480 hospitalizations for ACS (73.6%). Hospitalizations were most likely to include guideline-adherent antibiotics for children aged 5 to 9 years (3230 of 4047 [79.8%]) and declined to the lowest level for children 19 to 22 years (697 of 1088 [64.1%]). Between-hospital variation in antibiotic regimens was wide, with use of guideline-adherent antibiotics ranging from 24% to 90%. Children treated with guideline-adherent antibiotics had lower 30-day ACS-related (odds ratio [OR], 0.71; 95% CI, 0.50-1.00) and all-cause (OR, 0.50; 95% CI, 0.39-0.64) readmission rates vs children who received other regimens (cephalosporin and macrolide vs neither drug class).

CONCLUSIONS AND RELEVANCE

Current approaches to antibiotic treatment in children with ACS vary widely, but guideline-adherent therapy appears to result in fewer readmissions compared with non-guideline-adherent therapy. Efforts to increase the dissemination and implementation of SCD treatment guidelines are warranted as is comparative effectiveness research to strengthen the underlying evidence base.

Influence of hospital type on survival in stage IV colorectal cancer

PURPOSE

Hospital factors along with various patient and surgeon factors are considered to affect the prognosis of colorectal cancer. Hospital volume is well known, but little is known regarding other hospital factors.

METHODS

We reviewed data on 853 patients with stage IV colorectal cancer who underwent elective palliative primary tumor resection between January 2006 and December 2007. To detect the hospital factors that could influence the prognosis of incurable colorectal cancer, the relationships between patient/hospital factors and overall survival were analyzed. Among hospital factors, hospital type (Group A: university hospital or cancer center; Group B: community hospital), hospital volume, and number of colorectal surgeons were examined.

RESULTS

In univariate analysis, Group A hospitals showed significantly better prognosis than Group B hospitals (p = 0.034), while hospital volume and number of colorectal surgeons were not associated with overall survival. After adjustment for patient factors in multivariate analysis, hospital type was significantly associated with overall survival (hazard ratio: 1.31; 95 % confidence interval: 1.05-1.63; p = 0.016). However, there was no significant difference in short-term outcomes between hospital types.

CONCLUSIONS

Hospital type was identified as a hospital factor that possibly affects the prognosis of stage IV colorectal cancer patients.

Association between Hospital Volume and Within-Hospital Intensive Care Unit Transfer for Sickle Cell Disease in Children's Hospitals

OBJECTIVE

To assess the relationship between hospital volume and intensive care unit (ICU) transfer among hospitalized children with sickle cell disease (SCD).

STUDY DESIGN

We conducted a retrospective cohort study of 83,477 SCD-related hospitalizations at children's hospitals (2009-2012) using the Pediatric Health Information System database. Hospital-level all-cause and SCD-specific volumes were dichotomized (low vs high). Outcomes were within-hospital ICU transfer (primary) and length of stay (LOS) total (secondary). Multivariable logistic/linear regressions assessed the association of hospital volumes with ICU transfer and LOS.

RESULTS

Of 83,477 eligible hospitalizations, 1741 (2.1%) involving 1432 unique children were complicated by ICU transfer. High SCD-specific volume (OR 0.77, 95% CI 0.64-0.91) was associated with lower odds of ICU transfer while high all-cause hospital volume was not (OR 0.87, 95% CI 0.73-1.04). A statistically significant interaction was found between all-cause and SCD-specific volumes. When results were stratified according to all-cause volume, high SCD-specific volume was associated with lower odds of ICU transfer at low all-cause volume (OR 0.46, 95% CI 0.38-0.55). High hospital volumes, both all-cause (OR 0.94, 95% CI 0.92-0.97) and SCD-specific (OR 0.86, 95% CI 0.84-0.88), were associated with shorter LOS.

CONCLUSIONS

Children's hospitals vary substantially in their transfer of children with SCD to the ICU according to hospital volumes. Understanding the practices used by different institutions may help explain the variability in ICU transfer among hospitals caring for children with SCD.

Derivation and preliminary validation of a risk score to predict 30-day ED revisits for sickle cell pain

BACKGROUND

Emergency department (ED) revisits and 30-day readmissions have been proposed as markers for quality of ED care for sickle cell disease (SCD).

OBJECTIVE

To create a scoring system that quantifies the risk of 30-day revisit after ED discharge for SCD vaso-occlusive pain

METHODS

This was a dual-center retrospective derivation and validation cohort study. The derivation was performed at an academic, tertiary care center and the validation at an urban community hospital. The primary outcome was revisit to the ED within 30 days after an ED discharge for SCD pain. Recursive partitioning was used to derive a scoring system to predict 30-day revisits.

RESULTS

Of a total of 1456 ED visits for SCD pain, there were 680 ED discharges (admission rate of 53%) in 193 unique individuals included in the derivation cohort. There were 240 (35.3%) 30-day revisits. Of a total of 126 ED visits for SCD, there were 79 ED discharges in 41 unique individuals in the validation cohort. The final risk score included 4 variables: (1) age, (2) insurance status, (3) triage pain score, and (4) amount of opioids administered during the ED visit. Possible scores range from 0 to 6. The areas under the receiver operating characteristic curves were 0.746 (95% confidence interval, 0.71-0.78-derivation cohort) and 0.753 (95% confidence interval, 0.65-0.86-validation cohort). A cutoff of 4 or greater identified 60% of 30-day ED revisits in the derivation cohort and 80% of revisits in the validation cohort.

CONCLUSIONS

A risk score can identify ED visits for SCD pain with high risk of 30-day revisit.

Variation in pediatric emergency department care of sickle cell disease and fever

OBJECTIVES

The objective was to study the variation in pediatric emergency department (PED) practice patterns for evaluation and management of children with sickle cell disease (SCD) and fever in U.S. children's hospitals.

METHODS

A cross-sectional study of visits by children 3 months to 18 years of age with SCD and fever evaluated in 36 U.S. children's hospital PEDs within the 2010 Pediatric Health Information System database. The main outcome measures were the proportions of SCD visits that received evaluation (laboratory testing and chest radiographs [CXRs]) and treatment (parenteral administration of antibiotics) and were admitted for fever.

RESULTS

Of the 4,853 PED visits for SCD and fever, 91.7% had complete blood counts (CBCs), 93.8% had reticulocyte counts, 93% had blood cultures obtained, 68.5% had CXRs, and 91.7% received antibiotics. Most (81.4%) patients received the recommended National Heart, Lung and Blood Institute evaluation (CBC, reticulocyte count, and blood culture) and treatment (parenteral antibiotics). In multivariate regression modeling controlling for hospital- and patient-level effects, age groups ≥1 to <5 years (odds ratio [OR] = 0.32, 95% confidence interval [CI] = 0.25 to 0.40) and ≥5 to <13 years (OR = 0.40, 95% CI = 0.32 to 0.50), and those visits that did not have CXRs had lower odds of hospital admission. After adjusting for age, payor status, receipt of laboratory testing, antibiotics, and CXRs, admission rates varied by sevenfold across U.S. children's hospitals (p < 0.001).

CONCLUSIONS

Standardization of practice exists across children's hospitals regarding obtaining laboratory studies and administering antibiotics for patients with SCD and fever. However, admission rates vary significantly. Evaluating the causes and consequences of such significant variation needs further exploration to improve the quality of care for patients with SCD.

Investing in the health and well-being of young adults

Contrary to popular perception, young adults-ages approximately 18-26 years-are surprisingly unhealthy. They are less healthy than adolescents, and they also show a worse health profile than those in their late 20s and 30s. The Affordable Care Act provisions to extend coverage for young adults are well known, and some states had already been pursuing similar efforts before the Affordable Care Act was enacted. These initiatives have resulted in important gains in young adults' heath care coverage. However, too little attention has been paid to the care that young adults receive once they are in the system. Given young adults' health problems, this is a critical omission. The Institute of Medicine and National Research Council recently released a report titled Investing in the Health and Well-Being of Young Adults. The report concludes that young adulthood is a critical developmental period and recommends that young adults ages 18-26 years be treated as a distinct subpopulation in policy, planning, programming, and research. The report also recommends action in three priority areas to improve health care for young adults: improving the transition from pediatric to adult medical and behavioral health care, enhancing preventive care for young adults, and developing evidence-based practices.

Management and outcomes of pneumonia among children with complex chronic conditions

INTRODUCTION

Although pneumonia is a common reason for pediatric hospitalization among children with complex chronic conditions (CCC), treatment and outcomes have not been well-described. We characterized the presentation, management and outcomes of pneumonia in children with and without CCC and described how antibiotic management and outcomes vary among subgroups of children with CCC.

METHODS

We conducted a cohort study of children <18 years with pneumonia across a large sample of US hospitals. Children were grouped according to CCC subgroups. Differences in disease management and outcomes were assessed using multivariable regression.

RESULTS

Of the 31,684 children in our cohort, 11.9% had CCC. Children with CCC were more likely to receive intensive investigations and therapies, were less likely to receive aminopenicillins or third generation cephalosporins and were more likely to receive antibiotics against methicillin-resistant Staphylococcus aureus, Pseudomonas aeruginosa and anaerobes. Compared with children without these conditions, children with CCC had significantly increased length of stay [relative risk 1.43, 95% confidence interval (CI) 1.39-1.48] and hospital costs (relative risk 1.38, 95% CI 1.33-1.43), with increased odds of antibiotic escalation (odds ratio 1.51, 95% CI 1.35-1.70), pneumonia complications (odds ratio 1.47, 95% CI 1.24-1.75) and readmission (odds ratio 4.0, 95% CI 3.2-5.0).

DISCUSSION

Children with CCC comprise a significant proportion of children hospitalized for pneumonia and are at substantially increased risk of adverse outcomes. They have high rates of treatment with broad spectrum antibiotics, both at the time of hospitalization and subsequently. Research is needed to inform decision-making and guideline development, with goals of reducing adverse outcomes and unnecessary variation in management among children with CCC.

Outcomes of acute chest syndrome in adult patients with sickle cell disease: predictors of mortality

Adults with sickle cell disease(SCD) are a growing population. Recent national estimates of outcomes in acute chest syndrome(ACS) among adults with SCD are lacking. We describe the incidence, outcomes and predictors of mortality in ACS in adults. We hypothesize that any need for mechanical ventilation is an independent predictor of mortality.

METHODS

We performed a retrospective analysis of the Nationwide Inpatient Sample(2004-2010),the largest all payer inpatient database in United States, to estimate the incidence and outcomes of ACS needing mechanical ventilation(MV) and exchange transfusion(ET) in patients >21 years. The effects of MV and ET on outcomes including length of stay(LOS) and in-hospital mortality(IHM) were examined using multivariable linear and logistic regression models respectively. The effects of age, sex, race, type of sickle cell crisis, race, co-morbid burden, insurance status, type of admission, and hospital characteristics were adjusted in the regression models.

RESULTS

Of the 24,699 hospitalizations, 4.6% needed MV(2.7% for <96 hours, 1.9% for ≥96 hours), 6% had ET, with a mean length of stay(LOS) of 7.8 days and an in-hospital mortality rate(IHM) of 1.6%. There was a gradual yearly increase in ACS hospitalizations that needed MV(2.6% in 2004 to 5.8% in 2010). Hb-SS disease was the phenotype in 84.3% of all hospitalizations. After adjusting for a multitude of patient and hospital related factors, patients who had MV for <96 hours(OR = 67.53,p<0.01) or those who had MV for ≥96 hours(OR = 8.73,p<0.01) were associated with a significantly higher odds for IHM when compared to their counterparts. Patients who had MV for ≥96 hours and those who had ET had a significantly longer LOS in-hospitals(p<0.001).

CONCLUSION

In this large cohort of hospitalized adults with SCD patients with ACS, the need for mechanical ventilation predicted higher mortality rates and increased hospital resource utilization. Identification of risk factors may enable optimization of outcomes.