Receiving Influenza Immunization Research Articles

Preventive health services utilization in patients treated by family physicians.

Aim To explore preventive health service utilization in patients treated by family physicians and the factors associated with their use. Methods This cross-sectional study was carried out in family medicine outpatient departments of the Primary Health Care Canter of Canton Sarajevo, Bosnia and Herzegovina. The study included 300 patients (150 males and 150 females). A questionnaire for the evaluation of patients' socio-demographic characteristics, health profile and use of preventive health services was used. Results Females visited family physicians significantly more often than males (p=0.001). About 51.2% of males reported undergoing a prostate examination within the past 2 years, 77% of females had an examination of the breast within the past 2 years, 9.8% of males and 10.5% of females had received influenza immunization in past 12 months. A number of visits to family physicians in the last twelve months was significantly associated with having had a prostate examination (digital rectal examination and/or prostate-specific antigen testing) (B=1.413, SE=0.171; p=0.043) and an examination of the breast (clinical breast examination and/or mammography) (B=1.817, SE=0.307; p=0.041). Advancement in age was positively associated with influenza immunization (B=2.901, SE=0.026; p=0.000). Conclusion A visit to family physicians was an important step along the causal pathway to receiving preventive services (a prostate examination, an examination of breast). Adults aged 18-64 years were not well protected against influenza and comprehensive strategies are needed.

Increasing Delivery of Preventive Services to Adolescents and Young Adults: Does the Preventive Visit Help?

PurposeDespite decades of emphasizing the delivery of adolescent preventive care visits and evidence that many preventive services reduce risk, little evidence links preventive visits to increased preventive service delivery. This study examined whether a preventive healthcare visit versus any nonpreventive healthcare visit was associated with higher rates of adolescent and young adult preventive services. MethodsAnalyzed Medical Expenditure Panel Survey data (2013–2015) to determine whether those with a preventive versus nonpreventive healthcare visit had higher rates of past-year preventive services receipt; adolescents (N = 8,474, ages 10–17) and young adults (N = 5,732, ages 18–25). Bivariable and multivariable analyses adjusting for personal/sociodemographic covariates tested for differences in preventive services rates between preventive versus nonpreventive care groups. Adolescent services were blood pressure, height and weight measured, and all three measured; and guidance given regarding healthy eating, physical activity, seatbelts and helmets, secondhand smoke, dental care, all six topics received, and time alone with provider. Young adult services were blood pressure and cholesterol checked, received influenza immunization, and all three services received. ResultsAll preventive services rates were significantly higher in those attending preventive visits versus those with nonpreventive visits. Adolescent services increase ranged from 7% to 19% and young adults increase from 9% to 14% (all bivariable and multivariable analyses, p < .001). However, most rates were low overall. ConclusionsHigher rates of preventive services associated with preventive visits support its clinical care value. However, low preventive services rates overall highlight necessary increased efforts to promote preventive care and improve the provider delivery of prevention for both age groups.

Immunization education for internal medicine residents: A cluster-randomized controlled trial

PurposeThe aims of this study are to evaluate the impact of a novel immunization curriculum based on the Preferred Cognitive Styles and Decision Making Model (PCSDM) on internal medicine (IM) resident continuity clinic patient panel immunization rates, as well as resident immunization knowledge, attitudes, and practices (KAP). MethodsA cluster-randomized controlled trial was performed among 143 IM residents at Mayo Clinic to evaluate the PCSDM curriculum plus fact-based immunization curriculum (intervention) compared to fact-based immunization curriculum alone (control) on the outcomes of resident continuity clinic patient panel immunization rates for influenza, pneumococcal, tetanus, pertussis, and zoster vaccines. Pre-study and post-study immunization KAP surveys were administered to IM residents. ResultsNinety-nine residents participated in the study. Eighty-two residents completed pre-study and post-study surveys. Influenza and pertussis immunization rates improved for both intervention and control groups. There was no significant difference in immunization rate improvement between the groups. Influenza immunization rates improved significantly by 33.4% and 32.3% in the intervention and control groups, respectively. The odds of receiving influenza immunization at the end of the study relative to pre-study for the entire study cohort was 4.6 (p < 0.0001). The odds of having received pertussis immunization at the end of the study relative to pre-study for the entire study cohort was 1.2 (p = 0.0002). Both groups had significant improvements in immunization knowledge. The intervention group had significant improvements in multiple domains that assessed confidence in counseling patients on immunizations. ConclusionsFact-based immunization education was useful in improving IM resident immunization rates for influenza and pertussis. The PCSDM immunization curriculum did not lead to increases in immunization rates compared with the fact-based curriculum, but it did significantly increase resident confidence in communicating with patients about vaccines.

Predictors of Adherence to Multiple Clinical Preventive Recommendations among Adults with Diabetes in Spain.

ObjectiveThis study aims to describe adherence to seven clinical preventive services among Spanish adults with diabetes, to compare adherence with people without diabetes and to identify predictor of adherence to multiple practices among adults with diabetes.DesignCross-sectional study based on data obtained from the European Health Survey for Spain 2009 and the Spanish National Health Survey 2011. We analyzed those aged 40-69 years (n= 20,948). Diabetes status was self-reported. The study variables included adherence to blood pressure (BP) checkup, cholesterol measurement, influenza vaccination, dental examination, fecal occult blood test (FOBT), mammography and cytology. Independent variables included socio-demographic characteristics, variables related to health status and lifestyle factors.ResultsThe study sample included 1,647 subjects with diabetes and 19,301 without. Over 90% had measured their BP and cholesterol in the last year, 44.4% received influenza immunization, 36.4% had a dental checkup within the year and only 8.1% underwent a FOBT. Among diabetic women 75.4% had received a mammography and 52.4% a cytology in the recommended periods. The adherence to BP and cholesterol measurements and influenza vaccination was significantly higher among those suffering diabetes and cytology and dental checkup were lower. Only 63.4% of people with diabetes had fulfilled half or more of the recommended practices. Female sex, higher educational level, being married or cohabiting, higher number of chronic conditions and number of physician visits increased the adherence to multiple preventive practices. For each unhealthy lifestyle reported the probability of having a higher adherence level decreased.ConclusionsAcceptable adherence is found for BP and cholesterol checkups and mammography. Unacceptably low rates were found for influenza vaccine, dental care, cytology and FOBT. Moreover, preventive services are provided neither equitably nor efficiently so future research needs to identify individual and organizational factors that allow interventions to reach these subjects with diabetes.

Population Health Considerations for Pediatric Asthma: Findings from the 2011-2012 California Health Interview Survey.

Childhood asthma is a prevalent and costly chronic condition. Optimal management enables secondary and tertiary prevention. The goal was to identify population health considerations for pediatric asthma in California to inform the development of quality improvement interventions. California Health Interview Survey 2011-2012 is a random-digit dial telephone survey conducted in 5 languages. It includes 44,000 households from all 58 counties in California. This study assessed factors related to symptom control and health care use in children ages 2-11 years with asthma. An estimated 492,385 (9.6%) of children in California currently have asthma. Urban and rural residents face comparable asthma disease burdens. School-age male children as well as Asian and African American children are disproportionately affected. Asthma causes significant morbidity, with poorer health status, high utilization of emergency care, and the need for daily medication use. Only 38% of children with asthma have a recent asthma management plan. Half of all children with asthma did not receive influenza immunization in the past year, although this reflects the overall low rate of influenza vaccination. Parents of children with asthma frequently utilize the Internet for health information and communication with their child's health care provider. Children with asthma in California face several population-level challenges, including poor health status, low influenza vaccination rates, high use of emergency care, and suboptimal use of health literacy tools. Focusing on improved care coordination and preventive care for high-risk groups is especially urgent given the expansion of public health insurance and impending shortages in the primary care workforce. (Population Health Management 2016;19:145-151).

Influenza immunization in Canada's low-income population.

BackgroundImmunization offers the best protection from influenza infection. Little evidence describes disparities in immunization uptake among low-income individuals. Higher rates of chronic disease put this population at increased risk of influenza-related complications. This analysis examines if the type of main source of household income in low-income groups affects influenza immunization uptake. We hypothesized that individuals on social assistance have less access to immunization compared to those with employment earnings or seniors’ benefits.MethodsData was obtained from the Canadian Community Health Survey annual component 2009-2010. A total of 10,373 low-income respondents (<20,000$ Canadian per annum) were included. Logistic regression, stratified according to type of provincial publicly funded immunization program, was used to examine the association between influenza immunization (in the last 12 months) and main source of household income (employment earnings; social assistance as a combination of employment insurance or worker’s compensation or welfare; or seniors’ benefits).ResultsOverall, 32.5% of respondents reported receiving influenza immunization. In multivariable analysis of universal publicly funded influenza immunization programs, those reporting social assistance (AOR 1.24, 95% CI 1.02-1.51) or seniors’ benefits (AOR 1.56, 95% CI 1.23-1.98) were more likely to be immunized compared to those reporting employment earnings. Similar results were observed for high-risk programs.ConclusionsAmong the low-income sample, overall influenza immunization coverage is low. Those receiving social assistance or seniors’ benefits may have been targeted due to higher rates of chronic disease. Programs reaching the workforce may be important to attain broader coverage. However, CCHS data was collected during the H1N1 pandemic influenza, thus results may not be generalizable to influenza immunization in non-pandemic years.

Burden of seasonal influenza in children with neurodevelopmental conditions.

Studies have identified certain neurologic and neurodevelopmental conditions (NNC) as risk factors for severe influenza infection. The Canadian National Advisory Committee on Immunization does not currently recognize children with NNC as having a high risk of complicated influenza infection unless their condition compromises handling of respiratory secretions. We describe the burden of influenza in hospitalized children with NNC, focusing on those without potential airway compromise. Using multi-year surveillance data obtained by the Canadian Immunization Monitoring Program, Active (IMPACT), we examined presenting signs and symptoms, risk factors and outcomes of children hospitalized with seasonal influenza at 12 Canadian pediatric referral centers. Comparisons were made between children with various NNC and other medical conditions, with and without influenza vaccine indications. The analysis is descriptive with selected comparisons made among groups for important indicators of disease severity. We identified 1991 children hospitalized with influenza over 5 seasons: 293 had NNC, 115 of whom did not have airway compromise or another vaccine indication. The latter group presented with seizures more frequently than those with NNC and a vaccine indication (41.7% vs. 26.4%; P = 0.006) and required intensive care unit admission (20.9% vs. 11.8%; P = 0.02) and mechanical ventilation (14.8% vs. 4.5%; P < 0.001) more often than children without NNC but with a vaccine indication. The burden of influenza infection in children with NNC, even those whose conditions do not obviously compromise respiratory function, is significant. All children with NNC should be recognized as having a high risk of complicated influenza infection and be targeted to receive influenza immunization.

Reaching children never previously vaccinated for influenza through a school-located vaccination program.

We determined the success of the school-located vaccination (SLV) program, implemented in 2009 in New York City to deliver pandemic influenza A (H1N1) monovalent vaccine (pH1N1), versus provider offices in reaching children who had never previously received influenza vaccine. We compared the immunization history of children vaccinated in school versus provider offices. We included records in the Citywide Immunization Registry with pH1N1 administered between October 2009 and March 2010 to elementary school-aged children. In total, 96,524 children received pH1N1 vaccine in schools, and 102,933 children received pH1N1 vaccine in provider offices. Of children vaccinated in schools, 34% had never received seasonal influenza vaccination in the past, compared with only 10% of children vaccinated at provider offices (P < .001). Children vaccinated in schools were more likely to have received a second dose of pH1N1 in 2009-2010 than those vaccinated in provider offices (80% vs 45%). The SLV program was more successful at reaching children who had never received influenza immunization in the past and should be considered as a strategy for delivering influenza vaccine in routine and emergency situations.

Self-Immunization with Live Attenuated Influenza Vaccine in a Mass Vaccination Clinic

An influenza pandemic may demand that a large number of influenza immunizations be rapidly given with limited resources. This study tested the utility and practicality of self-immunization with live attenuated influenza intranasal vaccine in a mass vaccination event. The self-immunization clinic model was evaluated in a three-tiered fashion using student, first responder, and open community events. A single nurse was easily able to direct 89 people through the process of self-administration of the vaccine in a three-hour first-responder event and 122 people in a three-hour open community event. 96% of participants believed that they had performed the self-administration correctly, and the same percentage reported that they would like to receive influenza immunization by self-vaccination in the future. The self-immunization clinic is a practical and potentially useful model in an influenza pandemic setting.

A Case of Evans' Syndrome Following Influenza Vaccine

BackgroundEvans' syndrome is an uncommon condition defined by the combination (either simultaneously or sequentially) of immune thrombocytopenia purpura and autoimmune hemolytic anemia with a positive direct antiglobulin test in the absence of known underlying etiology. ObjectivesWe present a case of Evans' syndrome following influenza vaccination. Case ReportA 50-year-old man with no prior medical history developed Evans' syndrome 4 days after receiving influenza immunization. The patient improved following treatment with oral prednisone and intravenous immunoglobulin. ConclusionInfluenza vaccine is one of the most commonly used vaccines worldwide, with millions of people being vaccinated annually. Despite its wide use, only sparse information has been published concerning any hematological effects of this vaccine. The rarity of such effects supports the safety of using this vaccine.

Monocyte-Platelet Interaction Induces a Pro-Inflammatory Phenotype in Circulating Monocytes

BackgroundActivated platelets exert a pro-inflammatory action that can be largely ascribed to their ability to interact with leukocytes and modulate their activity. We hypothesized that platelet activation and consequent formation of monocyte-platelet aggregates (MPA) induces a pro-inflammatory phenotype in circulating monocytes.Methodology/Principal FindingsCD62P+ platelets and MPA were measured, and monocytes characterized, by whole blood flow cytometry in healthy subjects, before and two days after receiving influenza immunization. Three monocytic subsets were identified: CD14+CD16−, CD14highCD16+and CD14lowCD16+. The increase in high sensitivity C-reactive protein post-immunization was accompanied by increased platelet activation and MPA formation (25.02±12.57 vs 41.48±16.81; p = 0.01), along with enhancement of circulating CD14highCD16+ cells (4.7±3.6 vs 10.4±4.8; p = 0.003), their percentage being linearly related to levels of CD62P+-platelets (r2 = 0.4347; p = 0.0008). In separate in vitro experiments, co-incubation of CD14+CD16− cells, isolated from healthy donor subjects, with autologous platelets gave rise to up-regulation of CD16 on monocytes as compared with those maintained in medium alone (% change in CD14+CD16+ cells following 48 h co-incubation of monocytes with platelets was +106±51% vs monocytes in medium alone; p<0.001). This effect correlated directly with degree of MPA formation (r2 = 0.7731; p<0.0001) and was associated with increased monocyte adhesion to endothelial cells. P-selectin glycoprotein ligand-1 (PSGL-1) blocking antibody, which abrogates MPA formation, abolished these effects, as did the cyclooxygenase (COX)-2 selective inhibitor NS-398, aspirin and the EP1/EP2-selective antagonist AH6809.Conclusions/SignificanceThese data suggest that MPA formation, as occurs in the blood under pro-inflammatory conditions, expands the pool of circulating CD14highCD16+ monocytes in a COX-2 dependent manner, and these monocytes exhibit increased adhesion to endothelium. Our findings delineate a novel mechanism underlying the pro-inflammatory effect of platelet activation.

An evaluation of gender equity in different models of primary care practices in Ontario.

BackgroundThe World Health Organization calls for more work evaluating the effect of health care reforms on gender equity in developed countries. We performed this evaluation in Ontario, Canada where primary care models resulting from reforms co-exist.MethodsThis cross sectional study of primary care practices uses data collected in 2005-2006. Healthcare service models included in the study consist of fee for service (FFS) based, salaried, and capitation based. We compared the quality of care delivered to women and men in practices of each model. We performed multi-level, multivariate regressions adjusting for patient socio-demographic and economic factors to evaluate vertical equity, and adjusting for these and health factors in evaluating horizontal equity. We measured seven dimensions of health service delivery (e.g. accessibility and continuity) and three dimensions of quality of care using patient surveys (n = 5,361) and chart abstractions (n = 4,108).ResultsHealth service delivery measures were comparable in women and men, with differences ≤ 2.2% in all seven dimensions and in all models. Significant gender differences in the health promotion subjects addressed were observed. Female specific preventive manoeuvres were more likely to be performed than other preventive care. Men attending FFS practices were more likely to receive influenza immunization than women (Adjusted odds ratio: 1.75, 95% confidence intervals (CI) 1.05, 2.92). There was no difference in the other three prevention indicators. FFS practices were also more likely to provide recommended care for chronic diseases to men than women (Adjusted difference of -11.2%, CI -21.7, -0.8). A similar trend was observed in Community Health Centers (CHC).ConclusionsThe observed differences in the type of health promotion subjects discussed are likely an appropriate response to the differential healthcare needs between genders. Chronic disease care is non equitable in FFS but not in capitation based models. We recommend that efforts to monitor and address gender based differences in the delivery of chronic disease management in primary care be pursued.

Immune Response to Influenza Vaccine in Pediatric Patients With Inflammatory Bowel Disease

The aim of this study was to compare response to inactivated influenza vaccine in healthy children and pediatric patients with inflammatory bowel disease (IBD). A prospective, open-label, controlled clinical trial during influenza seasons of 2002-2004 was performed. Single-dose inactive trivalent influenza vaccine was administered. Immune response to vaccination was measured by pre-immunization and postimmunization hemagglutinin inhibition titers. A postimmunization hemagglutinin inhibition titer of 40 or higher was considered protective against influenza. IBD activity and adverse events were recorded. Eighty subjects were enrolled (29 healthy controls, 51 IBD patients). One patient did not complete the study. Patients were divided into 3 subgroups: infliximab and immunomodulatory (16), immunomodulatory (20), and anti-inflammatory therapy (14). Immunomodulatory therapy included corticosteroids, 6-mercaptopurine, or methotrexate. Overall, there was a statistically significant decrease in immune response in patients compared with healthy controls who received 1 influenza vaccine antigen (B/Hong Kong, P = .0125). Patients receiving infliximab and immunomodulatory therapy were less likely to respond to 2 influenza vaccine antigens (A/New Caledonia/20/99 and B/Hong Kong/330/2001, P = .018 and .0002, respectively). Fifteen subjects (19%) reported 19 mild adverse events: 11 (14%) reported soreness at the site, 4 (5%) reported having a cold, 3 (4%) reported flu-like symptoms, and 1 (1%) reported a headache. The clinical activity of IBD was not affected by vaccination. The serologic conversion rate to influenza vaccine in patients with IBD ranged from 33% to 85%. Patients on concomitant infliximab and immunomodulatory therapy are at risk of inadequate response to vaccination. The vaccine was safe and did not affect IBD activity.

Use of preventive services of overweight and obese Europeans aged 50-79 years.

Although frequent contacts with health care systems may represent more opportunities to receive preventive services, excess body weight has been linked to decreased access to preventive services and quality of care. The objective of the study is to examine whether obese and overweight, compared to normal weight persons, have different experiences of preventive care. The study design is cross-sectional. Baseline data (2004) of a population-based survey conducted in 10 European countries. The participants were noninstitutionalized adults, 13,859, (50-79 years) with body mass index (BMI) > or = 18.5 kg/m2, who answered the baseline and supplementary questionnaires (overall response rate of 51.3%) of the Survey of Health, Ageing and Retirement in Europe (SHARE). BMI was divided into normal weight (BMI, 18.5-24.9 kg/m2), overweight (BMI, 25.0-29.9 kg/m2), and obesity (BMI >30 kg/m2). Reported dependent variables were: influenza immunization, colorectal and breast cancer screening, discussion and recommendation about physical activity, and weight measurement. We performed multivariate logistic regressions, adjusting for age, sex, education, income, smoking, alcohol consumption, physical activity, and country. Overweight and obesity were associated with higher odds of receiving influenza immunization but not with receipt of breast or colorectal cancer screening. Overweight and obese individuals mentioned more frequently that their general practitioner discussed physical activity or checked their weight, which was not explained by chronic diseases or the number of ambulatory care visits. These first data from SHARE did not suggest that overweight or obesity were associated with decreased use of preventive services.

Impact of the 2004 influenza vaccine shortage on repeat immunization rates.

We assessed the impact of the severe influenza vaccine shortage of 2004 on individual physicians' immunization performance. Using 1998-2004 Medicare claims data, we monitored the physician continuity rate (proportion of patients receiving influenza immunization from a physician in 1 year who received a subsequent immunization from the same physician the subsequent year) and other clinician rate (proportion of patients with claims from 1 physician in 1 year with a claim from another clinician the subsequent year) in West Virginia Medicare beneficiaries from 2000-2004. We examined vaccine claim trends by clinician and surveys of self-reported immunization to determine whether patients received vaccine from nonphysician clinicians or went without immunization each year. Claims-based influenza vaccination rates increased from 35.5% to 41.3% from 2000-2003, reflecting historical trends, before declining 14.1% in 2004. Median continuity rates among the 723 to 849 physicians claiming 25 or more influenza immunizations from 2000-2003 increased from 47% in 2000-2001 to 54% in 2002-2003; then fell to 3% in 2003-2004. The number of physicians filing 100 or more claims declined from 337 in 2003 to 130 in 2004. More than 25% of physicians had no repeat vaccinations of the same beneficiaries in 2004. Trends in clinician type and survey data indicated a shift of many beneficiaries to mass vaccinators and institutional providers; however, compared with previous years, there was an estimated 8% increase in 2004 in the number of West Virginia beneficiaries who did not receive vaccine. The 2004 vaccine shortage had a severe impact on influenza immunization rates in private physician's offices, disrupting continuity of care.

Disability and receipt of clinical preventive services among women

More individuals are surviving catastrophic injuries and living longer with persistent disability; however, their receipt of clinical preventive services is not well understood as compared with those without disabilities given the dual focus of care on both primary prevention and the prevention of secondary complications related to their disabilities. Longitudinal analyses of 1999-2002 Medical Expenditure Survey (MEPS). Study sample consisted of 3,183 community-dwelling women aged 51-64 years and followed for 2 full years. Women with disabilities were defined as having reported any limitation in any area of activity of daily living in 2 years. Recommended clinical preventive services were defined as receiving the following at the recommended intervals: colorectal, cervical, and breast cancer; cholesterol screening; and influenza immunization. chi(2) tests and multiple logistic regressions were used to examine variations in use of clinical preventive services. Overall, 23% of the women in the study (n = 835) were disabled. Disabled women, however, were less likely to receive mammography and Pap smears within the recommended intervals. However, disabled women were more likely to receive influenza immunization, cholesterol screening, and colorectal screening within the recommended intervals. Among the disabled, usual source of care and health insurance remained significant predictors of receipt of clinical preventive services across all types, Disabled women were less likely to receive some of the cancer screening services, suggesting a need for targeted interventions to promote breast cancer and cervical cancer screening. Increased access to health care insurance and health care providers may also help.

Influenza Immunization in Nursing Homes: Who Does Not Get Immunized and Whose Status Is Unknown?

To identify nursing home resident and facility characteristics associated with patients not receiving influenza immunization and having unknown immunization status. Secondary data analysis using multinomial logistic regression of data from the National Nursing Home Survey, a nationally representative establishment-based survey. A total of 1,423 nursing facilities of all ownerships and certifications systematically sampled with probability proportional to number of beds. A total of 7,350 randomly sampled people aged 65 years or older residing in nursing homes between July and December 1999 (approximately 6 per facility). Immunization status of residents. Fifteen percent of residents were not immunized and 19% had unknown immunization status. In multivariate analysis, lack of immunization and unknown immunization status were each separately associated with being newly admitted, with no or unknown pneumococcal immunization, and with facility failures to screen for immunization and to record inoculation in the medical record. High-risk status and staff immunization requirements had no effect. Separate analyses showed that residents with unknown immunization status are statistically significantly different from both those vaccinated and those not vaccinated. This study indicates that both resident and facility characteristics are associated with failure to be immunized for influenza. Facilities should consider targeting younger, newly admitted, and residential care residents for influenza immunization, since they are more likely to be missed. Further research into the barriers to immunization specific to nursing home resident choice or opportunity may be warranted.

Improving Influenza Immunization Rates Among Healthcare Workers Caring for High-Risk Pediatric Patients

To assess influenza vaccination rates of healthcare workers (HCWs) in neonatal intensive care units (NICUs), pediatric intensive care units (PICUs), and oncology units in Pediatric Prevention Network (PPN) hospitals. Infection control practitioners and HCWs in NICUs, PICUs, and oncology units. In November 2000, posters, electronic copies of a slide presentation, and an influenza fact sheet were distributed to 32 of 76 PPN hospitals. In January 2001, a survey was distributed to PPN hospital participants to obtain information about the immunization campaigns. On February 7, 2001, a survey of influenza immunization was conducted among HCWs in NICU, PICU, and oncology units at participating hospitals. Infection control practitioners from 19 (25%) of the 76 PPN hospitals completed the surveys. The median influenza immunization rate was 43% (range, 12% to 63%), with 7 hospitals exceeding 50%. HCWs (n = 1123) at 15 PPN hospitals completed a survey; 53% of HCWs reported receiving influenza immunization. Immunization rates varied by work site: 52% in NICUs and PICUs compared with 60% in oncology units. Mobile carts and PPN educational fact cards were associated with higher rates among these subpopulations (P < .001) (361 [63%] of 575 vs 236 [44%] of 541 for mobile carts; 378 [60%] of 633 vs 219 [45%] of 483 for fact cards). Despite delayed distribution of influenza vaccine during the 2000-2001 season, immunization rates at 7 hospitals and among HCWs in high-risk units exceeded the National Association of Children's Hospitals and Related Institutions goal of 50%.

Who are the elderly who never receive influenza immunization?

Objective This paper estimates the rates of lifetime nonreceipt of influenza immunization among elderly and examines variations in the lifetime nonreceipt of immunization by gender, race and ethnic group, socioeconomic status, access to health care, and health status. Methods Cross-sectional, nationally representative data on 5557 adults older than 50 years of age and living in the community from the 2000 Medical Expenditure Panel Survey are used. Lifetime nonreceipt of influenza immunization was analyzed with bivariate and multivariate statistical techniques. Findings Thirty-one percent of the elderly reported never receiving influenza immunization and 20% reported irregular immunization. Higher odds of lifetime nonreceipt of vaccination and irregular vaccination were seen among African-Americans, young–old, current smokers, and those with no usual source of care. Conclusions Future campaigns to increase immunization rates should be tailored to target this hard-to-reach group of individuals.

Influenza and Pneumococcal Immunization Rates Among a High-Risk Population

Influenza and pneumococcal infections are the most vaccine-preventable infectious diseases among the elderly population. Elderly patients (65 years and older) with chronic diseases derive substantial benefit from having current immunization status due to their high risk for respiratory diseases. However, immunization levels for influenza and pneumococcus remain suboptimal. This study sought to determine the immunization rates in a high-risk geriatric population. Charts of consecutive patients seen in a geriatric clinic from November 1999 to February 2000 were obtained. Medical records were reviewed to assess their influenza and pneumococcal immunization status. Of 200 patients who qualified for the study, all had at least two indications for vaccination, yet only 34% were current with influenza immunization, and 26% were current with pneumococcus immunization. In a high-risk elderly population, influenza and pneumococcal immunization rates were low. Patients who received pneumococcus vaccination were more likely to receive influenza immunization as well.