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  • 1
    Online Resource
    Online Resource
    Influenza Burden for Children With Asthma
    American Academy of Pediatrics (AAP) ; 2008
    In:  Pediatrics Vol. 121, No. 1 ( 2008-01-01), p. 1-8
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 121, No. 1 ( 2008-01-01), p. 1-8
    Abstract: OBJECTIVE. The goal was to estimate the influenza disease burden among children with asthma and among healthy children by using active, laboratory-confirmed, population-based surveillance. METHODS. Children 6 to 59 months of age residing in 3 US counties who were hospitalized with acute respiratory illnesses or fever were enrolled prospectively from 2000 through 2004. Similar children who presented to clinics and emergency departments during 2 of the influenza seasons (2002–2004) were enrolled. Rates of influenza-attributable outpatient visits and hospitalizations for children with asthma and for healthy children were estimated. History of asthma and receipt of influenza vaccine for the study children were determined through parental report. The prevalence of asthma in the surveillance population was assumed to be 6.2% for children 6 to 23 months of age and 12.3% for children 24 to 59 months of age. RESULTS. Of 81 children 6 to 59 months of age with influenza-confirmed hospitalizations in 2000 to 2004, 19 (23%) had asthma. Average annual influenza-attributable hospitalization rates were significantly higher among children with asthma than among healthy children 6 to 23 months of age (2.8 vs 0.6 cases per 1000 children) but not children 24 to 59 months of age (0.6 vs 0.2 case per 1000 children). Of 249 children 6 to 59 months of age with influenza-confirmed outpatient visits in 2002 to 2004, 38 (15%) had asthma. Estimated outpatient influenza-attributable visit rates were higher among children with asthma than among healthy children 6 to 23 months of age (316 vs 152 cases per 1000 children) and 24 to 59 months of age (188 vs 102 cases per 1000 children) in 2003 to 2004. Few parents reported that their children had been vaccinated, including & lt;30% of children with asthma. CONCLUSION. Influenza-attributable health care utilization is high among children with asthma and is generally higher than among healthy children.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2007-1053
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2008
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  • 2
    Online Resource
    Online Resource
    Vaccine Effectiveness Against Laboratory-Confirmed Influenza in Children 6 to 59 Months of Age During the 2003–2004 and 2004–2005 Influenza Seasons
    American Academy of Pediatrics (AAP) ; 2008
    In:  Pediatrics Vol. 122, No. 5 ( 2008-11-01), p. 911-919
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 122, No. 5 ( 2008-11-01), p. 911-919
    Abstract: OBJECTIVE. The goal was to estimate the effectiveness of influenza vaccination against laboratory-confirmed influenza during the 2003–2004 and 2004–2005 influenza seasons in children 6 to 59 months of age. METHODS. We conducted a case-control study with children with medically attended, acute respiratory infections who received care in an inpatient, emergency department, or outpatient clinic setting during 2 consecutive influenza seasons. All children residing in Monroe County, New York, Davidson County, Tennessee, or Hamilton County, Ohio, were enrolled prospectively at the time of acute illness and had nasal/throat swabs tested for influenza with cultures and/or polymerase chain reaction assays. Children with laboratory-confirmed influenza were case subjects and children who tested negative for influenza were control subjects. Child vaccination records from the parent and the child's physician were used to determine and to validate influenza vaccination status. Influenza vaccine effectiveness was calculated as (1 − adjusted odds ratio) × 100. RESULTS. We enrolled 288 case subjects and 744 control subjects during the 2003–2004 season and 197 case subjects and 1305 control subjects during the 2004–2005 season. Six percent and 19% of all study children were fully vaccinated according to immunization guidelines in the respective seasons. Full vaccination was associated with significantly fewer influenza-related inpatient, emergency department, or outpatient clinic visits in 2004–2005 (vaccine effectiveness: 57%) but not in 2003–2004 (vaccine effectiveness: 44%). Partial vaccination was not effective in either season. CONCLUSIONS. Receipt of all recommended doses of influenza vaccine was associated with halving of laboratory-confirmed influenza-related medical visits among children 6 to 59 months of age in 1 of 2 study years, despite suboptimal matches between the vaccine and circulating influenza strains in both years.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2007-3304
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2008
    detail.hit.zdb_id: 1477004-0
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  • 3
    Online Resource
    Online Resource
    Effectiveness of Pentavalent Rotavirus Vaccine Against Severe Disease
    American Academy of Pediatrics (AAP) ; 2011
    In:  Pediatrics Vol. 128, No. 2 ( 2011-08-01), p. e267-e275
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 128, No. 2 ( 2011-08-01), p. e267-e275
    Abstract: To determine the vaccine effectiveness (VE) of complete and partial vaccination with the pentavalent rotavirus vaccine (RV5) in the prevention of rotavirus acute gastroenteritis (AGE) hospitalizations and emergency department visits during the first 3 rotavirus seasons after vaccine introduction. METHODS: Active, prospective population-based surveillance for AGE and acute respiratory infection (ARIs) in inpatient and emergency department settings provided subjects for a case-control evaluation of VE in 3 US counties from January 2006 through June 2009. Children with laboratory-confirmed rotavirus AGE (cases) were matched according to date of birth and onset of illness to 2 sets of controls: children with rotavirus-negative AGE and children with ARI. The main outcome measure was VE with complete (3 doses) or partial (1 or 2 doses) RV5 vaccination. RESULTS: Of age-eligible children enrolled, 18% of cases, 54% of AGE controls, and 54% of ARI controls received ≥1 dose of RV5. The VE of RV5 for 1, 2, and 3 doses against all rotavirus genotypes with the use of rotavirus-negative AGE controls was 74% (95% confidence interval [CI]: 37%–90%), 88% (95% CI: 66%–96%), and 87% (95% CI: 71%–94%), respectively, and with the use of ARI controls was 73% (95% CI: 43%–88%), 88% (95% CI: 68%–95%), and 85% (95% CI: 72%–91%), respectively. The overall VE estimates were comparable during the first and second years of life and against AGE caused by different rotavirus strains. CONCLUSION: RV5 was highly effective in preventing severe rotavirus disease, even after a partial series, with protection persisting throughout the second year of life.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2010-3722
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2011
    detail.hit.zdb_id: 1477004-0
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  • 4
    Online Resource
    Online Resource
    Practice and Child Characteristics Associated With Influenza Vaccine Uptake in Young Children
    American Academy of Pediatrics (AAP) ; 2010
    In:  Pediatrics Vol. 126, No. 4 ( 2010-10-01), p. 665-673
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 126, No. 4 ( 2010-10-01), p. 665-673
    Abstract: The objective of this study was to determine both practice and child characteristics and practice strategies associated with receipt of influenza vaccine in young children during the 2004–2005 influenza season, the first season for the universal influenza vaccination recommendation for all children who are aged 6 to 23 months. METHODS: Clinical and demographic data from randomly selected children who were aged 6 to 23 months were obtained by chart review from a community-based cohort study in 3 US counties. The proportion of children who were vaccinated by April 5, 2005, in each practice was obtained. For assessment of practice characteristics and strategies, sampled practices received a self-administered practice survey. Practice and child characteristics that predicted complete influenza vaccination were determined by using multinomial logistic regression. RESULTS: Forty-six (88%) of 52 sampled practices completed the survey and permitted chart reviews. Of 2384 children who were aged 6 to 23 months and were studied, 27% were completely vaccinated. The proportion of children who were completely vaccinated varied widely among practices (0%–71%). Most (87%) practices implemented ≥1 vaccination strategy. Complete influenza vaccination was associated with 3 practice characteristics: suburban location, lower patient volume, and vaccination strategies of evening/weekend vaccine clinics; with child characteristics of younger age, existing high-risk conditions, ≥6 well visits to the practice by 3 years of age, and any practice visit from October through January. CONCLUSIONS: Modifiable factors that were associated with increased influenza vaccination coverage included October to January practice visits and evening/weekend vaccine clinics.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2009-2620
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2010
    detail.hit.zdb_id: 1477004-0
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