Patterns of Influenza Vaccination and Vaccine Effectiveness Among Young US Children Who Receive Outpatient Care for Acute Respiratory Tract Illness.

Importance: The burden of influenza among young children is high, and influenza vaccination is the primary strategy to prevent the virus and its complications. Less is known about differences in clinical protection following 1 vs 2 doses of initial influenza vaccination. Objectives: To describe patterns of influenza vaccination among young children who receive outpatient care for acute respiratory tract illness in the US and compare vaccine effectiveness (VE) against medically attended laboratory-confirmed influenza by number of influenza vaccine doses received. Design: This test-negative case-control study was conducted in outpatient clinics, including emergency departments, at 5 sites of the US Influenza Vaccine Effectiveness Network during the 2014-2015 through 2017-2018 influenza seasons. The present study was performed from November 5, 2014, to April 12, 2018, during periods of local influenza circulation. Children aged 6 months to 8 years with an acute respiratory tract illness with cough who presented for outpatient care within 7 days of illness onset were included. All children were tested using real-time, reverse-transcriptase polymerase chain reaction for influenza for research purposes. Exposures: Vaccination in the enrollment season with either 1 or 2 doses of inactivated influenza vaccine as documented from electronic medical records, including state immunization information systems. Main Outcomes and Measures: Medically attended acute respiratory tract infection with real-time, reverse-transcriptase polymerase chain reaction testing for influenza. Results: Of 7533 children, 3480 children (46%) were girls, 4687 children (62%) were non-Hispanic white, and 4871 children (65%) were younger than 5 years. A total of 3912 children (52%) were unvaccinated in the enrollment season, 2924 children (39%) were fully vaccinated, and 697 children (9%) were partially vaccinated. Adjusted VE against any influenza was 51% (95% CI, 44%-57%) among fully vaccinated children and 41% (95% CI, 25%-54%) among partially vaccinated children. Among 1519 vaccine-naive children aged 6 months to 2 years, the VE of 2 doses in the enrollment season was 53% (95% CI, 28%-70%), and the VE of 1 dose was 23% (95% CI, -11% to 47%); those who received 2 doses were less likely to test positive for influenza compared with children who received only 1 dose (adjusted odds ratio, 0.57; 95% CI, 0.35-0.93). Conclusions and Relevance: Consistent with US influenza vaccine policy, receipt of the recommended number of doses resulted in higher VE than partial vaccination in 4 influenza seasons. Efforts to improve 2-dose coverage for previously unvaccinated children may reduce the burden of influenza in this population.

Experiential Communications Curriculum to Improve Resident Preparedness When Responding to Discriminatory Comments in the Workplace.

BACKGROUND: Patients and families can make discriminatory comments leading to physician distress. Residents receive little training in appropriate responses to such comments and may be ill equipped to respond to intolerance without alienating the individual(s) making the comments. OBJECTIVE: We assessed whether a simulated curriculum would enhance pediatrics residents' ability to effectively respond to discriminatory comments. METHODS: In the 2016-2017 academic year, we modified an existing communication skills curriculum for senior pediatrics residents. Residents engaged a simulated parent who used discriminatory speech in 4 scenarios, followed by a group debriefing. We conducted anonymous surveys to assess residents' preparedness to respond to these comments before and immediately following participation and examined their experience with discriminatory comments in the workplace. RESULTS: The majority of residents reported prior experience with discriminatory comments (32 of 45 [71%] witnessed such comments, and 27 of 48 [56%] were targeted by such comments), most often regarding age, race, and ethnicity. Mean precourse scores ranged from 2.1 to 3.1 (on a 5-point scale) regarding ability to engage in a firm yet respectful dialogue, to reference the hospital code of conduct, to coach a learner to respond, and to facilitate a team debrief. Mean postcourse scores improved significantly for these questions (range 3.8-4.1). The greatest improvement was in referencing the code of conduct (2.1 versus 4.0, P < .001). CONCLUSIONS: Immediately after participating in simulation, pediatrics residents reported a significant improvement in self-reported readiness to respond to discriminatory comments made by a parent and reported the simulation experience was beneficial.

Improving adolescent HPV vaccination in a randomized controlled cluster trial using the 4 Pillars™ practice Transformation Program.

OBJECTIVE: Uptake of meningococcal vaccine (MCV) and tetanus, diphtheria and pertussis (Tdap) vaccine among adolescents has approached Healthy People 2020 goals, but human papillomavirus (HPV) vaccination has not. This study evaluated an intervention using the 4 Pillars™ Practice Transformation Program to increase HPV, MCV and Tdap uptake among adolescents in primary care practices. METHODS: Practices with at least 50 patients 11-17years old with estimated vaccination rates less than national goals, were assigned to intervention (n=11) and control (n=11) groups in a randomized controlled cluster trial; 9 intervention and 11 control sites completed the study. The baseline and active study periods were 7/1/2013-6/30/2014 and 7/1/2014-3/31/2015, respectively. Vaccination and demographic data for patients who had a visit in both study periods were derived from de-identified EMR extractions. Primary outcomes were vaccination rates and percentage point (PP) changes. Data were analyzed in 2015-16. RESULTS: Among the cohort of 10,861 adolescent patients, 38% were 11-13years old; 50% were female; 18% were non-white; and 64% were commercially insured. Average baseline HPV initiation rates were 52.5% for intervention and 61.8% for control groups. After 9months, the intervention sites increased HPV initiation 10.2PP compared with 7.3PP in control sites (P<0.001); HPV series completion rates did not differ between groups. Implementation of >10 strategies to improve rates significantly increased the likelihood of HPV series initiation (OR=2.06, 95% CI=1.43, 2.96). CONCLUSIONS: Using >10 strategies from the 4 Pillars™ Practice Transformation Program is effective for increasing HPV series initiation among adolescents. Clinical trial registry number: NCT02165722.

Reducing Racial Disparities in Influenza Vaccination Among Children With Asthma.

INTRODUCTION: A multifaceted intervention to raise influenza vaccination rates was tested among children with asthma. METHODS: In a pre/post study design, 18 primary care practices implemented the 4 Pillars Immunization Toolkit along with other strategies. The primary outcome was the difference in influenza vaccination rates at each practice among children with asthma between the baseline year (before the intervention) and at the end of year 2 (after the intervention), both overall and by race (White vs. non-White). RESULTS: Influenza vaccination rates increased significantly in 13 of 18 practices. The percentage of vaccinated non-White children increased from 46% to 61% (p < .01), and the percentage of vaccinated White children increased from 58% to 65% (p < .001). Likelihood of vaccination was significantly lower for non-White children before the intervention (odds ratio = 0.66; 95% confidence interval = 0.59-0.73; p < .001), but this difference was eliminated after the intervention (odds ratio = 0.95; 95% confidence interval = 0.85-1.05; p = .289). DISCUSSION: A multi-strategy, evidence-based intervention significantly increased influenza vaccination uptake and reduced racial disparities among children with asthma.

Influenza Vaccine Effectiveness for Fully and Partially Vaccinated Children 6 Months to 8 Years Old During 2011-2012 and 2012-2013: The Importance of Two Priming Doses.

BACKGROUND: Few studies have examined the effectiveness of full versus partial vaccination with inactivated trivalent influenza vaccines (IIV3) as defined by the US CDC Advisory Committee on Immunization Practices. METHODS: Respiratory swabs were collected from outpatients aged 6 months to 8 years with acute cough for ≤7 days in clinics in 5 states during the 2011-2012 and 2012-2013 influenza seasons. Influenza was confirmed by real-time reverse transcription polymerase chain reaction assay. Receipt of current season IIV3 and up to 4 prior vaccinations was documented from medical records and immunization registries. Using a test-negative design, vaccine effectiveness (VE) was estimated adjusting for age, race/ethnicity, medical conditions, study site and month of enrollment. RESULTS: We did not observe higher VE for children fully versus partially vaccinated with IIV3, as defined by US Advisory Committee on Immunization Practice, although our sample of partially vaccinated children was relatively small. However, among children aged 2-8 years in both seasons and against A(H3N2) and B influenza illness separately, VE point estimates were consistently higher for children who had received 2 doses in the same prior season compared with those without (VE range of 58%-80% vs. 33%-44%, respectively). Across seasons, the odds of A(H3N2) illness despite IIV3 vaccination were 2.4-fold (95% confidence interval: 1.4-4.3) higher among children who had not received 2 doses in the same prior season. We also noted residual protection among unvaccinated children who were vaccinated the previous season (VE range = 36%-40% across outcomes). CONCLUSION: Vaccination with IIV3 may provide preventive benefit in subsequent seasons, including possible residual protection if vaccination is missed. Two vaccine doses in the same season may be more effective than alternative priming strategies.

Increasing childhood influenza vaccination: a cluster randomized trial.

BACKGROUND: Since the 2008 inception of universal childhood influenza vaccination, national rates have risen more dramatically among younger children than older children and reported rates across racial/ethnic groups are inconsistent. Interventions may be needed to address age and racial disparities to achieve the recommended childhood influenza vaccination target of 70%. PURPOSE: To evaluate an intervention to increase childhood influenza vaccination across age and racial groups. METHODS: In 2011-2012, a total of 20 primary care practices treating children were randomly assigned to the intervention and control arms of a cluster randomized controlled trial to increase childhood influenza vaccination uptake using a toolkit and other strategies including early delivery of donated vaccine, in-service staff meetings, and publicity. RESULTS: The average vaccination differences from pre-intervention to the intervention year were significantly larger in the intervention arm (n=10 practices) than the control arm (n=10 practices); for children aged 9-18 years (11.1 pct pts intervention vs 4.3 pct pts control, p<0.05); for non-white children (16.7 pct pts intervention vs 4.6 pct pts control, p<0.001); and overall (9.9 pct pts intervention vs 4.2 pct pts control, p<0.01). In multi-level modeling that accounted for person- and practice-level variables and the interactions among age, race, and intervention, the likelihood of vaccination increased with younger age group (6-23 months); white race; commercial insurance; the practice's pre-intervention vaccination rate; and being in the intervention arm. Estimates of the interaction terms indicated that the intervention increased the likelihood of vaccination for non-white children in all age groups and white children aged 9-18 years. CONCLUSIONS: A multi-strategy intervention that includes a practice improvement toolkit can significantly improve influenza vaccination uptake across age and racial groups without targeting specific groups, especially in practices with large percentages of minority children.

Primary care providers' beliefs about teen and parent barriers to depression care.

OBJECTIVE: Only one-third of US adolescents with depression obtain treatment for depression. Teen and parent barriers differ, but both contribute to low treatment rates. Primary care providers (PCPs) may be able to elicit and address such barriers, but little is known about their perceptions of teen and parent barriers, and whether they recognize these differences. METHODS: We administered a survey to 58 PCPs assessing their perceptions of the importance of specific barriers to depression care for teens and parents using McNemar's test to examine differences. RESULTS: Most PCPs believed barriers for parents included difficulty making appointments, worry about what others would think, and cost. PCPs believed barriers for teens included not wanting treatment and worry about what others would think. PCPs believed parents and teens differed in the extent to which they would perceive cost, difficulty in making appointments, and not wanting care as a barrier (p < .001). CONCLUSIONS: Primary care providers recognize that teens and parents have different barriers to care, but may have discordant perceptions of the importance of certain barriers for teens and their parents. PCPs may need to probe parents and teens individually about barriers, which impede depression care to enhance shared decision making and treatment uptake.

Cluster randomized trial of a toolkit and early vaccine delivery to improve childhood influenza vaccination rates in primary care.

PURPOSE: To increase childhood influenza vaccination rates using a toolkit and early vaccine delivery in a randomized cluster trial. METHODS: Twenty primary care practices treating children (range for n=536-8183) were randomly assigned to Intervention and Control arms to test the effectiveness of an evidence-based practice improvement toolkit (4 Pillars Toolkit) and early vaccine supplies for use among disadvantaged children on influenza vaccination rates among children 6 months-18 years. Follow-up staff meetings and surveys were used to assess use and acceptability of the intervention strategies in the Intervention arm. Rates for the 2010-2011 and 2011-2012 influenza seasons were compared. Two-level generalized linear mixed modeling was used to evaluate outcomes. RESULTS: Overall increases in influenza vaccination rates were significantly greater in the Intervention arm (7.9 percentage points) compared with the Control arm (4.4 percentage points; P<0.034). These rate changes represent 4522 additional doses in the Intervention arm vs. 1390 additional doses in the Control arm. This effect of the intervention was observed despite the fact that rates increased significantly in both arms - 8/10 Intervention (all P<0.001) and 7/10 Control sites (P-values=0.04 to <0.001). Rates in two Intervention sites with pre-intervention vaccination rates >58% did not significantly increase. In regression analyses, a child's likelihood of being vaccinated was significantly higher with: younger age, white race (Odds ratio [OR]=1.29; 95% confidence interval [CI]=1.23-1.34), having commercial insurance (OR=1.30; 95%CI=1.25-1.35), higher pre-intervention practice vaccination rate (OR=1.25; 95%CI=1.16-1.34), and being in the Intervention arm (OR=1.23; 95%CI=1.01-1.50). Early delivery of influenza vaccine was rated by Intervention practices as an effective strategy for raising rates. CONCLUSIONS: Implementation of a multi-strategy toolkit and early vaccine supplies can significantly improve influenza vaccination rates among children in primary care practices but the effect may be less pronounced in practices with moderate to high existing vaccination rates. Clinical trial registry name/number: From Innovation to Solutions: Childhood Influenza/NCT01664793.

Primary care providers' initial treatment decisions and antidepressant prescribing for adolescent depression.

OBJECTIVE: Adolescent depression is a serious and undertreated public health problem. Nonetheless, pediatric primary care providers (PCPs) may have low rates of antidepressant prescribing due to structural and training barriers. This study examined the impact of symptom severity and provider characteristics on initial depression treatment decisions in a setting with fewer structural barriers, an integrated behavioral health network. METHODS: A cross-sectional survey was administered to 58 PCPs within a large pediatric practice network. PCP reports of initial treatment decisions were compared in response to 2 vignettes describing depressed adolescents with either moderate or severe symptoms. PCP depression knowledge, attitudes toward addressing psychosocial concerns, demographics, and practice characteristics were measured. RESULTS: Few PCPs (25% for moderate, 32% for severe) recommended an antidepressant. Compared with treatment recommendations for moderate depression, severe depression was associated with a greater likelihood of child psychiatry referral (odds ratio [OR], 5.50; 95% confidence interval [CI], 2.47-12.2] p < .001). Depression severity did not affect the likelihood of antidepressant recommendation (OR, 1.58 [95% CI, 0.80-3.11] p = .19). Antidepressants were more likely to be recommended by PCPs with greater depression knowledge (OR, 1.72 [95% CI, 1.14-2.59] p = .009) and access to an on-site mental health provider (OR, 5.13 [95% CI, 1.24-21.2] p = .02) and less likely to be recommended by PCPs who reported higher provider burden when addressing psychosocial concerns (OR, 0.85 [95% CI, 0.75-0.98] p = .02). CONCLUSION: PCPs infrequently recommended antidepressants for adolescents, regardless of depression severity. Continued PCP support through experiential training, accounting for provider burden when addressing psychosocial concerns, and co-management with mental health providers may increase PCPs' antidepressant prescribing.