California Hospitals Research Articles

Lessons from the pandemic: Relationship between patient visits and patient length of stay in California’s health system

BackgroundThe coronavirus disease 2019 (COVID-19) pandemic placed a heavy strain on the United States healthcare system. Common hospital operational performances were impacted to varying degrees by the pandemic. This study examined the healthcare operational measures during COVID-19 pandemic.MethodsThis cross-sectional study examined the COVID-19 cases and death counts of 56 California counties and hospital-level utilization data of 397 hospitals in California from January 2019 to March 2021.ResultsA total of 56 California counties were analysed, of which 37 counties were urban and 19 counties were rural. Average patient length of stay was positively associated with the number of intensive care unit visits by COVID-19 patients for all counties, as well as urban and rural counties separately. However, average patient length of stay was negatively associated with the number of inpatient visits by COVID-19 patients for all counties and urban counties.ConclusionsThe findings suggest that, while the need for additional beds and nursing staff in intensive care units exceeded initial estimates, there were also opportunities to streamline the care process for improved efficiency in regular acute care units. The understanding of factors impacting average patient length of stay would be valuable for hospital administrators in optimizing resource allocation and utilization to balance patient outcomes with financial sustainability during disruptive events.

Labor and delivery unit practices and racial and ethnic disparities in severe maternal and neonatal morbidity among nulliparous individuals with low-risk pregnancies.

Persistent racial and ethnic disparities exist in severe maternal and neonatal morbidity, which may be due in part to differences in labor and delivery unit practices across hospitals. We used data collected from 184 hospitals in California (2015-2018) to assess whether nulliparous individuals with low-risk pregnancies differ by race and ethnicity in giving birth at hospitals that tend to use lower-interventional labor and delivery unit practices, and whether such differences contribute to disparities in severe maternal and neonatal morbidity. We classified labor and delivery units as higher- or lower-interventional based on a latent class analysis of survey responses about the frequency of using lower-interventional practices. We used a modified doubly robust g-estimator to estimate counterfactual disparity measures, setting all hospitals to be lower-interventional. Among 348,990 low-risk livebirths, the proportion occurring at lower-interventional hospitals was lowest in Black and Latino individuals (17% and 16%, respectively) and highest in American Indian and Alaska Native (AI/AN) and White individuals (29% in both). Severe maternal and neonatal morbidity occurred most frequently among AI/AN individuals. Counterfactual disparity measures suggested that if all births occurred at lower-interventional hospitals, racial and ethnic disparities in the outcomes would modestly increase, except for severe neonatal morbidity among AI/AN individuals.

Use of Social Media to Source Medical Information Among Parents of Pediatric Otolaryngology Clinic Patients: A Survey Study.

The reach and impact of social media as it pertains to medical information among the parents and guardians of pediatric otolaryngology patients is unknown. This survey-based study investigates the use of social media as a source of medical knowledge in this population. Parents and guardians visiting a pediatric Otolaryngology clinic located at a tertiary care children's hospital in southern California from September 2022 to May 2023 were approached for study inclusion. Decision tree and logistic regression analysis was conducted to identify patterns of social media usage in association with factors of interest. Of the 400 parents included in the study, most were female (80.0%); 49.5% were 30 to 40 years of age, and 18.8% were <30 years old. Most (90.0%) used social media, and 44.5% actively used it to obtain health information related to care for their children. A large proportion of parents (73.0%) were interested in social media content to better understand their child's condition, particularly the opportunity to view videos and images of a surgery planned for their child (75.0%). About half (50.5%) would permit their child's doctor to post about their child on social media, and 53.8% stated they would be more inclined to choose a surgeon who uses social media to educate families about their child's condition. Most parents/guardians were interested in and had obtained critical medical information on social media, especially content pertaining to their child's medical condition(s). Analysis of survey responses identified the social media content most valued by parents/guardians of children undergoing otolaryngological surgery. These findings can be used by pediatric otolaryngologists to better understand their patients' preferences and improve access to health information for their patients on social media, as well as to grow their practices.

Assessing the Relationship Between Behavioral Health Integration and Alcohol-Related Treatment Among Patients with Medicaid.

Behavioral health integration (BHI) is increasingly implemented to expand capacity to address behavioral health conditions within primary care. Survey and claims data from the evaluation of the Public Hospital Redesign and Incentives in Medi-Cal program were used to examine the relationship between BHI and alcohol-related outcomes among Medicaid patients within 17 public hospitals in California. Key informant survey data measured hospital-level BHI at 3 levels (overall composite, infrastructure, and process domains, 10 themes). Multilevel logistic regression models estimated the relationship between BHI and outcomes indicating receipt of appropriate alcohol-related care (any primary care visit, any detoxification, timely initiation, timely engagement) and acute care (any emergency department [ED] visit or hospitalization, classified as alcohol-related or all-cause) in the year following an alcohol-related index encounter. Of 6196 patients, some had an alcohol-related primary care visit (33%), detoxification (16%), timely initiation (14%), or engagement in treatment (7%). ED visits resulting in discharge were more common (40% alcohol-related, 64% all-cause) than hospitalizations (15% alcohol-related, 26% all-cause). Controlling for patient-level characteristics, no significant relationships between overall BHI and these outcomes were observed. However, greater BHI infrastructure was associated with alcohol-related (odds ratio [OR] 1.86, 95% confidence interval [CI] 1.14-3.05) and all-cause hospitalization (OR 1.25, 95% CI 1.01-1.55). Associations emerged between BHI themes (eg, related to support of providers) and greater likelihood of alcohol-related detoxification, primary care visit, timely initiation, and acute care utilization. Findings suggest that implementing specific BHI components may improve receipt of alcohol-related treatment, and warrant future research into these relationships.

Current status and prospects of congenital adrenal hyperplasia: A bibliometric and visualization study.

Congenital adrenal hyperplasia (CAH) is increasingly prevalent, leading to a surge in related research. To pinpoint emerging trends and recommend future directions, a bibliometric analysis of relevant CAH literature was performed. From January 1, 2000, to October 1, 2023, we searched the Web of Science Core Collection for CAH literature. For the bibliometric analysis, tools such as VOSviewer, CiteSpace, and the R package "bibliometrix" were employed. The United States and England are at the forefront among 113 countries, contributing 5034 papers to CAH research. However, there is a need for more extensive global collaboration across institutions in this field. The number of publications on CAH is increasing annually. Leading research institutions include the University of Michigan, University of California, San Francisco, Karolinska Institutet, and Karolinska University Hospital. The Journal of Clinical Endocrinology & Metabolism is the most cited in this area. The most prolific author is Falhammar H, with 88 publications, 2568 co-citations, and a significant overall contribution. Key research areas include diagnostic methods and therapeutic strategies for CAH. Emerging research hotspots are identified by keywords such as "disorders of sex development," "21-hydroxylase deficiency," "ambiguous genitalia," "testosterone" and "adrenal insufficiency." Research on CAH is expected to expand globally. Future studies will primarily focus on exploring CAH's diagnostic aspects and developing new therapies. This paper will help scholars better understand the dynamic evolution of the CAH and point out the direction for future research.

A qualitative study of patient and family experiences in adolescents with varicoceles: A focus on fertility, self-esteem, and sexual function

A varicocele is an abnormal dilation of the pampiniform plexus of veins in the scrotum that commonly affects postpubertal males. The condition has been associated with male infertility, testicular hypotrophy, and pain. However, the clinical experiences of adolescent patients and their families regarding the evaluation, surveillance, and management of varicoceles have not been previously examined. This study explores the patient's and family's experiences of varicocele diagnosis and subsequent management to better understand the salient factors impacting decision-making and care. We conducted semi-structured interviews with patients and their families between August 2022 and January 2023. A total of 39 participants (16 adolescent males and 23 parents) were recruited following varicocele diagnosis and treatment at an urban, tertiary care hospital in California. Purposive sampling was adopted for the recruitment of participants through medical record screening to identify eligibility. Utilizing a modified grounded theory approach through the use of constant comparison and memo writing, the analysis consisted of open coding, axial coding, and selective coding, resulting in the production of core concepts and categories. Results demonstrate that parents and adolescents can benefit from improved understanding and education about long-term expectations during the diagnosis and treatment of adolescent varicoceles. Qualitative analysis indicates: 1) parents and adolescents have common concerns regarding fertility; however, this is exacerbated by the complexity of medical decision-making being dependent on adolescent and parental understanding of the full scope of varicocele impacts and outcomes, and 2) the psychosocial impact of a varicocele on adolescent self-esteem and sexual function are significant drivers for seeking care, which often manifested through discussions on masculinity through notions of 'manhood' and future sexual performance. Discussions with patients and families largely focused on their concerns regarding fertility, sexual function, and aesthetics (impacting self-esteem); however, their primary concern was for the need for more accurate and comprehensive information, which includes the natural history of the condition and the full scope of treatment options. Future studies should examine the experiences of patients and families from diverse backgrounds and geographic locations to identify potential differences in experiences. Findings identified the need for potential improvement in communication between pediatric urologists and families to alleviate anxiety and uncertainty among patients and families and empower them to make informed decisions about their care.

Do nurse spiritual responses to trauma explain nurse outcomes? A correlational observational study

BackgroundVarious facets of spirituality are associated with wellbeing. Given the current urgency to promote nurse wellbeing, nurse spirituality merits exploration. PurposeTo investigate how spiritual distress and growth (i.e., spiritual/religious struggle, moral injury, post-traumatic growth) contributed to nurse outcomes (i.e., burnout, job satisfaction, intent to leave). MethodsRNs providing direct patient care in three Southern California hospitals completed an online survey that included psychometrically robust measures. Hierarchical multiple regression analyses were used to test spiritual variables as predictors of nurse outcomes after accounting for demographic and work-related factors. FindingsIn this sample of 531 demographically diverse RNs, spiritual struggle contributed to burnout and turnover intention; posttraumatic growth and employer respect for nurse wellbeing contributed to all three nurse outcomes. DiscussionSpiritual distress and growth are understudied but potentially important influences on job outcomes for nurses. Results here suggest that continued development of interventions to address spiritual health is worth investment.

Association between consensus-based nutrition pathway and growth faltering in infants with gastroschisis: A retrospective cohort study.

The University of California Fetal Consortium published that 55% of infants with gastroschisis develop growth faltering by hospital discharge. To address this problem, we developed a nutrition pathway emphasizing (1) early provision of parenteral macronutrients, (2) use of human milk, and (3) growth faltering treatment. This study's goals were to assess adherence to and efficacy of this pathway in infants with gastroschisis across six California hospitals. In 2015, the consortium standardized the care for infants with gastroschisis. To decrease growth faltering rates, between 2019 and 2020, nutrition guidelines were proposed, discussed, revised, and initiated. This study's primary outcome was weight or linear growth faltering (z score decline ≥0.8 in weight or length) at hospital discharge. Adherence measures were assessed. One hundred twenty-six infants with gastroschisis were born prepathway; 52 were born postpathway. Median gestational age was similar between cohorts. Adherence to components of the pathway ranged from 58% to 95%. The proportion of infants with weight or linear growth faltering at discharge was lower after pathway initiation (59.4% vs 36.2%, P = 0.0068). Adjusting for gestational age and fetal growth restriction, the pathway was associated with decreased weight or linear growth faltering (odds ratio [OR] 0.35 [0.16-0.75], P = 0.0060) and decreased linear growth faltering (OR 0.24 [0.096-0.56], P = 0.0062) at discharge. Hypertriglyceridemia, cholestasis, and days to full feeds were similar to published cohorts. Fewer infants with gastroschisis experienced weight or length growth faltering at hospital discharge following the implementation of a multicenter nutrition pathway.

Burkholderia multivorans Infections Associated with Use of Ice and Water from Ice Machines for Patient Care Activities - Four Hospitals, California and Colorado, 2020-2024.

Ice machines can harbor water-related organisms, and the use of ice or tap water for clinical care activities has been associated with infections in health care settings. During 2021-2022, a total of 23 cases of infection by Burkholderia multivorans (sequence type ST659) were reported at two southern California hospitals and linked to contaminated ice and water from ice machines. In addition to these 23 cases, this report also includes 23 previously unreported cases of B. multivorans ST659 infections that occurred during 2020-2024: 13 at a northern California hospital, eight at a hospital in Colorado, and two additional cases at one of the southern California hospitals. The same brand of ice machine and brands of filters, descaling, and sanitizing products were used by all four hospitals; B. multivorans was isolated from samples collected from ice machines in two of the hospitals. Whole genome sequencing indicated that all clinical and ice machine isolates were highly genetically similar (0-14 single nucleotide variant differences across 81% of the selected reference genome). Recommendations from public health officials to halt the outbreak included avoiding ice and tap water during clinical care activities. An investigation is ongoing to determine possible sources of ice machine contamination. During outbreaks of water-related organisms in health care facilities, health care personnel should consider avoiding the use of tap water, including ice and water from ice machines, for patient care.

Initiating medical abortion in an emergency department in the United States

ObjectivesThe primary objective of this study was to assess the feasibility of initiating medical abortions in a large, academic emergency department (ED) in the United States.MethodsA retrospective case series analysis...

Application of Community Detection Methods to Identify Emergency General Surgery–Specific Regional Networks

There is growing interest in developing coordinated regional systems for nontraumatic surgical emergencies; however, our understanding of existing emergency general surgery (EGS) care communities is limited. To apply network analysis methods to delineate EGS care regions and compare the performance of this method with the Dartmouth Health Referral Regions (HRRs). This cross-sectional study was conducted using the 2019 California and New York state emergency department and inpatient databases. Eligible participants included all adult patients with a nonelective admission for common EGS conditions. Interhospital transfers (IHTs) were identified by transfer indicators or temporally adjacent hospitalizations at 2 different facilities. Data analysis was conducted from January to May 2024. Admission for primary EGS diagnosis. Regional EGS networks (RENs) were delineated by modularity optimization (MO), a community detection method, and compared with the plurality-based Dartmouth HRRs. Geographic boundaries were compared through visualization of patient flows and associated health care regions. Spatial accuracy of the 2 methods was compared using 6 common network analysis measures: localization index (LI), market share index (MSI), net patient flow, connectivity, compactness, and modularity. A total of 1 244 868 participants (median [IQR] age, 55 [37-70 years]; 776 725 male [62.40%]) were admitted with a primary EGS diagnosis. In New York, there were 405 493 EGS encounters with 3212 IHTs (0.79%), and 9 RENs were detected using MO compared with 10 Dartmouth HRRs. In California, there were 839 375 encounters with 10 037 IHTs (1.20%), and 14 RENs were detected compared with 24 HRRs. The greatest discrepancy between REN and HRR boundaries was in rural regions where one REN often encompassed multiple HRRs. The MO method was significantly better than HRRs in identifying care networks that accurately captured patients living within the geographic region as indicated by the LI and MSI for New York (mean [SD] LI, 0.86 [1.00] for REN vs 0.74 [1.00] for HRR; mean [SD] MSI, 0.16 [0.13] for REN vs 0.32 [0.21] for HRR) and California (mean [SD] LI, 0.83 [1.00] for REN vs 0.74 [1.00] for HRR; mean [SD] MSI, 0.19 [0.14] for REN vs 0.39 [0.43] for HRR). Nearly 27% of New York hospitals (37 of 139 hospitals [26.62%]) and 15% of California hospitals (48 of 336 hospitals [14.29%]) were reclassified into a different community with the MO method. Development of optimal health delivery systems for EGS patients will require knowledge of care patterns specific to this population. The findings of this cross-sectional study suggest that network science methods, such as MO, offer opportunities to identify empirical EGS care regions that outperform HRRs and can be applied in the development of coordinated regional systems of care.

Association of non-English language preference with postoperative hospital visits among California Medicaid enrollees

BackgroundPatients with non-English language preference encounter language barriers across phases of surgical care. Patients with a non-English language preference represent 35% of California households and are disproportionately insured by Medicaid. To determine whether language predicts surgical outcomes, we investigated the association of patient non-English language preference with postoperative emergency department visits and readmissions among California Medicaid enrollees. MethodsOur retrospective analysis of adult Medicaid enrollees undergoing 1 of 10 common inpatient operations using California hospital administrative data (2016–2019) modeled the association between non-English language preference and 30-day postoperative emergency department visits and readmissions using mixed effects logistic regression with hospital random intercept, adjusting for patient, operation, hospital, and community characteristics. Secondary analyses stratified by operation urgency and by insurance type in an all-payor cohort. ResultsOf 115,527 Medicaid enrollees, 17.2% had non-English language preference (n = 19,881), 66% were female (n = 73,653), and 40% were Hispanic/Latino (n = 45,541). Patients with non-English language preference experienced fewer postoperative emergency department visits (non-English language preference: 13.5%, English preference: 17.9%, P < .001) and readmissions (non-English language preference: 7.5%, English preference: 8.5%, P < .001), which persisted in adjusted models (adjusted odds ratio emergency department, 0.80, 95% confidence interval, 0.77–0.85; readmissions: adjusted odds ratio, 0.86, 95% confidence interval, 0.80–0.92). Non-English language preference was associated with fewer emergency department visits after elective (adjusted odds ratio, 0.80; 95% confidence interval, 0.73–0.88) and urgent/emergent surgery (adjusted odds ratio, 0.80; 95% confidence interval, 0.75–0.85) but not readmissions after elective surgery (adjusted odds ratio, 0.89; 95% confidence interval, 0.78–1.01). This pattern was only observed for Medicaid and not other insurance types. ConclusionPatients with non-English language preference who receive Medicaid have fewer postoperative emergency department visits and readmissions, even after urgent surgery. Our findings suggest that patterns of health care seeking after surgery vary by patient language, and investigating explanatory mechanisms is needed.

Epidural Analgesia During Labor and Neonatal Hypoxic-Ischemic Encephalopathy

Epidural analgesia is used by approximately 70% of birthing persons in the US to alleviate labor pain and is a common cause of elevated temperature in the birthing parent during labor, which, in turn, is associated with adverse neonatal outcomes such as hypoxic-ischemic encephalopathy (HIE). To determine whether epidural analgesia is associated with increased risk of HIE after adjusting for the birthing person's maximal temperature before epidural placement and for the propensity to get an epidural. This retrospective, population-based cohort study was conducted at 15 Kaiser Permanente Northern California hospitals. Participants included singleton neonates born at 35 weeks' or later gestational age between 2012 and 2019. Elective cesarean deliveries and deliveries within 2 hours of hospital admission were excluded. Data analysis was performed from November 2022 to June 2024. The primary exposure was epidural analgesia during labor. The primary outcome was HIE, defined as the presence of both neonatal acidosis (ie, pH <7 or base deficit ≥10) and encephalopathy. The presence and timing of epidural analgesia and demographic, pregnancy, and labor characteristics were extracted from electronic medical records. A propensity score for receiving epidural analgesia was created including demographic variables and comorbidities predating epidural placement. Logistic regression was used to evaluate the association between epidural analgesia and HIE, adjusting for maximal birthing parent's temperature before epidural placement and the propensity for receiving an epidural. Among 233 056 infants born at 35 weeks' or later gestational age by vaginal or unplanned cesarean delivery after at least 2 hours of in-hospital labor, 177 603 (76%) were exposed to epidural analgesia and 439 (0.19%) had HIE. On unadjusted analysis, epidural analgesia was associated with an increased risk of maximal temperature greater than 38 °C during labor (risk ratio [RR], 8.58; 95% CI, 8.06-9.14). Each degree increase in maximal temperature during labor was associated with nearly triple the odds of HIE (odds ratio [OR], 2.82; 95% CI, 2.51-3.17). However, there was no significant association between epidural analgesia and the risk of HIE either on crude (RR, 1.21; 95% CI, 0.96-1.53) or adjusted (adjusted OR, 0.93; 95% CI, 0.73-1.17) analyses. In this cohort study including more than 230 000 parent-infant dyads, epidural analgesia was associated with increased maximal temperature during labor, a known risk factor for HIE. However, epidural analgesia was not associated with increased odds of HIE.

Scaling Emergency Department Opioid Use Disorder Treatment Across California to Reduce Overdose Deaths, 2019-2023.

Since April 2019, CA Bridge has worked with emergency departments (EDs) in diverse geographic and emergency care settings across California to scale up low-threshold buprenorphine access, patient navigation programs, harm reduction services, and take-home naloxone. Between April 2019 and June 2023, 268 (81.0%) of 331 acute care hospitals in California received funding and technical assistance from CA Bridge and completed data reporting. These hospitals provided navigation services during 279 025 patient encounters and gave patients buprenorphine in 89 549 ED visits. (Am J Public Health. 2024;114(9):874-878. https://doi.org/10.2105/AJPH.2024.307710).

Joint effects of wildfire smoke and extreme heat on hospitalizations in California, 2011-2020

Joint effects of wildfire smoke and extreme heat on hospitalizations in California, 2011-2020

Sickle cell, thalassemia, and heat - an environmental justice concern: results from a pilot study using California hospitalization records, 1999-2019

Sickle cell, thalassemia, and heat - an environmental justice concern: results from a pilot study using California hospitalization records, 1999-2019

Metabolic dysfunctions predict the development of Alzheimer's disease: Statistical and machine learning analysis of EMR data.

The incidence of Alzheimer's disease (AD) and obesity rise concomitantly. This study examined whether factors affecting metabolism, race/ethnicity, and sex are associated with AD development. The analyses included patients ≥ 65 years with AD diagnosis in six University of California hospitals between January 2012 and October 2023. The controls were race/ethnicity, sex, and age matched without dementia. Data analyses used the Cox proportional hazards model and machine learning (ML). Hispanic/Latino and Native Hawaiian/Pacific Islander, but not Black subjects, had increased AD risk compared to White subjects. Non-infectious hepatitis and alcohol abuse were significant hazards, and alcohol abuse had a greater impact on women than men. While underweight increased AD risk, overweight or obesity reduced risk. ML confirmed the importance of metabolic laboratory tests in predicting AD development. The data stress the significance of metabolism in AD development and the need for racial/ethnic- and sex-specific preventive strategies. Hispanics/Latinos and Native Hawaiians/Pacific Islanders show increased hazards of Alzheimer's disease (AD) compared to White subjects. Underweight individuals demonstrate a significantly higher hazard ratio for AD compared to those with normal body mass index. The association between obesity and AD hazard differs among racial groups, with elderly Asian subjects showing increased risk compared to White subjects. Alcohol consumption and non-infectious hepatitis are significant hazards for AD. Machine learning approaches highlight the potential of metabolic panels for AD prediction.

Uncertainty in Postpartum Permanent Contraception Decision-Making: Physician and Patient Perspectives

PurposeWe sought to understand how patients and physicians conceptualize uncertainty in the permanent contraception decision-making process. Basic ProceduresIn 2022–2023, we interviewed postpartum patients with a documented desire for permanent contraception (n = 81) and their delivering physicians (n = 67). Eligible patients gave birth at one of our four study hospitals in California, Ohio, Illinois, and Alabama. We used rapid content analysis and thematic content analysis to develop and refine themes related to uncertainty in permanent contraceptive decision-making. Main FindingsMost patients reported full certainty in their decision regarding permanent contraception, although some expressed doubts. After receiving permanent contraception, some patients discussed grief but overall affirmed their decision. One patient said they wished they had considered other contraceptive options. Physicians reported using a range of strategies to safeguard from patient regret, including ensuring patients were 100% certain with their decision, inferring certainty based on their characteristics, asking patients to think through all scenarios that could affect decision-making, and repeat counseling during multiple interactions. Principal ConclusionsPatient experiences reveal the depth, fluidity, and nuance of patients' contraceptive decision-making processes. Physicians sometimes failed to grapple with this nuance by centering potential regret in their counseling. Personalized and supportive contraceptive counseling that acknowledges the complexity of contraceptive decision-making is imperative. Shared decision-making can help ensure patients can make informed and autonomous decisions about their reproductive lives.

Evaluation of Statewide Program to Reduce Cesarean Deliveries Among Nulliparous Individuals With Singleton Pregnancies at Term Gestation in Vertex Presentation.

To evaluate the effect of statewide efforts to reduce nulliparous, term, singleton, vertex (NTSV) cesarean delivery rates in California. This was a population-based study of all NTSV births in California from 2015 to 2019. In 2015, all California hospitals with NTSV cesarean delivery rates above the 23.9% Healthy People 2020 target were invited to join a CMQCC (California Maternal Quality Care Collaborative)-sponsored, 3-year, multifaceted collaborative or a system-level quality collaborative to safely support vaginal birth. We examined the cesarean delivery rate overall and by participation or nonparticipation in a collaborative program. Secondarily, for hospitals that started with an NTSV cesarean delivery rate above 23.9%, we compared patient-level, hospital-level, and obstetric management characteristics between hospitals that met the Healthy People 2020 target (cesarean delivery rate below 23.9%) in 2019 and those that did not. There were 758,268 NTSV births at 238 hospitals. Annual mean NTSV cesarean delivery rates decreased among all racial and ethnic groups statewide and among all patients, regardless of payer, maternal age, or body mass index (BMI). The decrease in cesarean delivery was driven largely by a decrease in the frequency of cesarean delivery performed for labor dystocia (14.9% in 2015 to 12.8% in 2019) and from cesarean delivery before the onset of labor (4.2% in 2015 to 3.3% in 2019). For hospitals that started with an NTSV cesarean delivery rate above 23.9%, NTSV cesarean delivery rates among 80 hospitals participating in the CMQCC had a mean±SD decline of 6.9±5.9%, 13 hospitals participating in the system-level collaborative had a 5.0±4.5% decline, and those not participating in any collaborative had a 2.1±6.0% decline. In multivariable analysis, there was no association between meeting the Healthy People target and any of the hospital-level factors or aggregated patient-level characteristics. Rates of induction of labor increased in both groups and were not associated with a change in cesarean delivery rates. Hospitals in California between 2015 and 2019 with a wide variation in institutional and patient characteristics successfully reduced their NTSV cesarean delivery rates. Reduction in the NTSV cesarean delivery rate at hospitals that started above the Healthy People target was not associated with differences in patient characteristics but rather a reduction in cesarean deliveries for labor dystocia and cesarean deliveries performed before the onset of labor.

How Many Is Too Many? Using Cognitive Load Theory to Determine the Maximum Safe Number of Inpatient Consultations for Trainees.

Cognitive load, specifically extraneous load (EL) reflective of distractions, may provide evidence of a lack of focus, potentially making additional work unsafe. The assessment of trainees performing inpatient consultations provides a helpful model for examining this question. The goal of this study was to provide useful information to clinical and educational leaders to optimize inpatient consultation services and rotations and mitigate potential patient safety risk. In 2019, using the Consult Cognitive Load instrument, the authors obtained EL data from inpatient consultations performed by internal medicine fellows and psychiatry residents across 5 University of California hospitals. In 2023, the authors constructed a Wright map to compare the participants' EL data with the number of prior initial consultations performed during the shift. Of 326 trainees contacted, 139 (43%) completed the EL survey items. The Wright map shows that trainees were estimated to agree that interruptions were already distracting at the first consultation of the shift. After 4 consultations, trainees were estimated to strongly agree that interruptions were distracting, and to agree that emotions, extraneous information, and technology were distracting. The authors propose a quantitative, empirically driven, mean safety limit of 4 new inpatient consultations per shift for trainees to avoid cognitive overload, thereby potentially supporting patient safety. Clinical and educational leaders can adjust this limit to fit the unique needs of their practice setting. A similar approach using cognitive load and item response theory could be used to conduct patient safety research in other domains.