Risk Factors for Measles Vaccine Failure Among Immunized Students

PEDIATRICS ◽  
1985 ◽  
Vol 76 (4) ◽  
pp. 518-523
Author(s):  
Harry F. Hull ◽  
Jean M. Montes ◽  
Patricia C. Hays ◽  
Robert L. Lucero
Keyword(s):  
Risk Factors ◽  
School System ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Measles Vaccine ◽  
Vaccine Failure ◽  
Control Study

An outbreak of measles occurred in a municipal school system which had reported 98% of students immunized against measles. A case-control study was conducted to determine reasons for vaccine failure Vaccine failure was associated with immunizations that could not be documented in the provider's records. Among children with provider-documented immunization, vaccine failure was associated with vaccination at 12 to 14 months of age with an odds ratio of 4.73. Among children vaccinated at 15 months or older, vaccine failure was not associated with time elapsed since vaccination. Studies should be conducted to determine whether unreliable immunization records are a more widespread problem. Further consideration should be given to routine revaccination of children previously vaccinated at 12 to 14 months of age.

Measles Vaccination During the Respiratory Virus Season and Risk of Vaccine Failure

PEDIATRICS ◽  
1996 ◽  
Vol 98 (5) ◽  
pp. 905-910
Author(s):  
M. Bruce Edmonson ◽  
Jeffrey P. Davis ◽  
Daniel J. Hopfensperger ◽  
Jeffrey L. Berg ◽  
Leonard A. Payton
Keyword(s):  
Odds Ratio ◽  
Respiratory Virus ◽  
Case Control Study ◽  
Case Series ◽  
Respiratory Illness ◽  
Case Control ◽  
Measles Vaccine ◽  
Vaccine Failure ◽  
Measles Vaccination ◽  
Control Study

Objective. To determine whether measles vaccine failure is more common in persons who were vaccinated during the respiratory virus season, when they were more likely to have had concurrent minor illnesses. Design. Population-based case series and case-control study. Setting. Wisconsin and Ohio. Subjects. The case series included all 545 of the states' residents who had confirmed measles reported during 1985 through 1990 and a history of receiving a single dose of measles vaccine during 1975 through 1988 at 15 to 59 months of age. In a case-control study restricted to 1984 through 1988 vaccinees, season of vaccination was compared in 170 case children and 6070 control students. Main Outcome Measure. Risk of clinical vaccine failure after measles vaccination during the respiratory virus season (September through May) or the peak season (November through March) compared with summertime (June through August), after adjustment for age at vaccination and place of residence. Results. In the case series of persons with vaccine failure, the proportion who had been vaccinated during the respiratory virus season (74.7%) was no greater than expected (September through May = 74.8% of the year). In the case-control study, vaccination during the respiratory virus season (odds ratio, 0.92; 95% confidence interval, 0.66 to 1.30) or the peak season (odds ratio, 0.93) did not increase the risk of vaccine failure. Conclusion. Despite the high and strongly seasonal prevalence of viral respiratory illness in young children, routine childhood measles vaccination during the respiratory virus season does not increase their risk of vaccine failure. Findings provide epidemiologic support for recently strengthened recommendations that measles vaccination not be deferred in children with minor respiratory illnesses.

scholarly journals Parental risk factors for congenital diaphragmatic hernia – a large German case-control study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Felicitas Schulz ◽  
Ekkehart Jenetzky ◽  
Nadine Zwink ◽  
Charlotte Bendixen ◽  
Florian Kipfmueller ◽  
...  
Keyword(s):  
Risk Factors ◽  
Confidence Interval ◽  
Environmental Risk ◽  
Odds Ratio ◽  
Alcohol Intake ◽  
Case Control Study ◽  
Case Control ◽  
Parental Risk Factors ◽  
Healthy Control ◽  
Control Study

Abstract Background Evidence for periconceptional or prenatal environmental risk factors for the development of congenital diaphragmatic hernia (CDH) is still scarce. Here, in a case-control study we investigated potential environmental risk factors in 199 CDH patients compared to 597 healthy control newborns. Methods The following data was collected: time of conception and birth, maternal BMI, parental risk factors such as smoking, alcohol or drug intake, use of hairspray, contact to animals and parental chronic diseases. CDH patients were born between 2001 and 2019, all healthy control newborns were born in 2011. Patients and control newborns were matched in the ratio of three to one. Results Presence of CDH was significantly associated with maternal periconceptional alcohol intake (odds ratio = 1.639, 95% confidence interval 1.101–2.440, p = 0.015) and maternal periconceptional use of hairspray (odds ratio = 2.072, 95% confidence interval 1.330–3.229, p = 0.001). Conclusion Our study suggests an association between CDH and periconceptional maternal alcohol intake and periconceptional maternal use of hairspray. Besides the identification of novel and confirmation of previously described parental risk factors, our study underlines the multifactorial background of isolated CDH.

scholarly journals Risk Factors for Herpes Zoster Infection in Patients With Chronic Kidney Disease: A Case-control Study

2021 ◽  
Author(s):  
Qiao Wang ◽  
Jiahui Ma ◽  
Zhenxing Li ◽  
Zhi Li ◽  
Dong Huang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Chronic Kidney Disease ◽  
Herpes Zoster ◽  
Kidney Disease ◽  
Odds Ratio ◽  
Case Control Study ◽  
Immunosuppressive Agents ◽  
Tertiary Hospital ◽  
Case Control ◽  
Control Study

Abstract Background: Chronic kidney disease (CKD) increases the susceptibility to the infection of herpes zoster (HZ). Less is known about the risk factors of HZ in CKD patients.Methods and Participants: This is a case-control study. CKD patients diagnosed with HZ infection between January 2015 and October 2020 in a tertiary hospital were identified. One age- and gender- matched control was paired for each case, matched to the date of initial HZ diagnose. The uni- and multivariate analysis were used to evaluate the risk factors for development of HZ in CKD patients.Results: Forty-six HZ patients and controls were identified. In general, about 80% (72 out of 92) patients were classified at end-stage renal disease (ESRD, CKD Ⅳ to Ⅴ). Multivariate analyses revealed that immunosuppressive agents (odds ratio: 12.50, 95% CI: 1.53-102.26, P=0.021) and dialysis (odds ratio: 3.33, 95% CI: 1.13-9.78, P=0.029) were independent risk factors of HZ in patient with CKD. Conclusion: Immunosuppressive medication and dialysis were associated with HZ infection in CKD. Further guideline may highlight the necessity of zoster vaccine for patients with CKD, who undertake immunosuppressive or dialysis treatment.

scholarly journals Risk factors for campylobacter infection in infants and young children: a matched case-control study

2001 ◽  
Vol 127 (3) ◽  
pp. 399-404 ◽  
Author(s):  
T. D. TENKATE ◽  
R. J. STAFFORD
Keyword(s):  
Risk Factors ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Age Group ◽  
Matched Case ◽  
Campylobacter Infection ◽  
Matched Case Control Study ◽  
Control Study ◽  
Infants And Young Children

Campylobacter infection has one of the highest rates of all the notifiable diseases in Australia, with a peak in children aged 0–35 months. A matched case-control study was conducted to investigate risk factors for campylobacter infection for children in this age group. Eighty-one cases and 144 controls were enrolled in the study that was conducted between 24 January 1996 and 21 January 1997. The following risk factors were found to be independently associated with illness: ownership of pet puppies (adjusted odds ratio [OR] 16·58, 95% confidence interval [CI] 3·73–73·65) and pet chickens (OR 11·80, CI 1·37–101·75), and consumption of mayonnaise (OR 4·13, CI 1·61–10·59). We propose that children aged less than 3 years are at risk of campylobacter infection if residing in a household which has puppies or chickens as pets.

A case-control study of risk factors of chronic venous ulceration in patients with varicose veins

2017 ◽  
Vol 33 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Gohar Abelyan ◽  
Lusine Abrahamyan ◽  
Gayane Yenokyan
Keyword(s):  
Risk Factors ◽  
Confidence Interval ◽  
Odds Ratio ◽  
Case Control Study ◽  
Varicose Veins ◽  
Case Control ◽  
Sitting Time ◽  
Venous Ulceration ◽  
History Of ◽  
Control Study

Background/objectives Venous ulcers carry psychological and high financial burden for patients, causing depression, pain, and limitation of mobility. The study aimed to identify factors associated with an increased risk of venous ulceration in patients with varicose veins in Armenia. Methods A case-control study design was utilized enrolling 80 patients in each group, who underwent varicose treatment surgery in two specialized surgical centers in Armenia during 2013–2014 years. Cases were patients with varicose veins and venous leg ulcers. Controls included patients with varicose veins but without venous leg ulcers. Data were collected using interviewer-administered telephone interviews and medical record abstraction. Multiple logistic regression analysis was used to identify the risk factors of venous ulceration. Results There were more females than males in both groups (72.5% of cases and 85.0 % of controls). Cases were on average older than controls (53.9 vs. 39.2 years old, p ≤ 0.001). After adjusting for potential confounders, the estimated odds of developing venous ulcer was higher in patients with history of post thrombotic syndrome (odds ratio = 14.90; 95% confidence interval: 3.95–56.19; p = 0.001), with higher average sitting time (odds ratio = 1.32 per hour of sitting time; 95% confidence interval: 1.08–1.61; p = 0.006), those with reflux in deep veins (odds ratio = 3.58; 95% confidence interval: 1.23–10.31; p = 0.019) and history of leg injury (odds ratio = 3.12; 95% confidence interval: 1.18–8.23; p = 0.022). Regular exercise in form of walking (≥5 days per week) was found to be a protective factor from venous ulceration (odds ratio = 0.26; 95% confidence interval: 0.08–0.90; p = 0.034). Conclusion We found that reflux in deep veins, history of leg injury, history of post thrombotic syndrome, and physical inactivity were significant risk factors for venous ulceration in patients with varicose veins, while regular physical exercise mitigated that risk. Future studies should investigate the relationships between the duration and type of regular exercise and the risk of venous ulceration to make more specific recommendations on preventing ulcer development.

scholarly journals Determinants of maternal deaths amongst mothers who suffered from post-partum haemorrhage: a community-based case control study

2018 ◽  
Vol 5 (7) ◽  
pp. 2814
Author(s):  
Divya Khanna ◽  
Jai Veer Singh ◽  
Monika Agarwal ◽  
Vishwajeet Kumar
Keyword(s):  
Risk Factors ◽  
Rural Areas ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Bivariate Analysis ◽  
Paired Data ◽  
Community Based ◽  
Maternal Deaths ◽  
Control Study

Background: The WHO estimates that, of the 529 000 maternal deaths occurring every year 136 000 take place in India amongst which postpartum haemorrhage (PPH) being the most (29.6%) commonly reported complication. However deaths from PPH can be prevented. The purpose of this study was to identify the risk factors contributing to maternal deaths amongst women who develop PPH.Methods: This was a community based paired case-control study done in rural areas of Lucknow, UP (India) done in a period of one year. Thirty-one maternal deaths due to PPH (cases) were matched and compared with two mothers who survived from PPH (controls). Data was analysed using SPSS version 17.0 and Open Epi version 2.3. The appropriate significance test was applied using MacNemar test for paired data. Risk factors obtained significant in bivariate analysis were subjected to conditional multiple logistic regressions for adjustment and controlling the effect of confounding variables. Results have been given in form of unadjusted Odds ratio (UOR) and adjusted Odds ratio (AOR).Results: It was seen that the mothers who had taken ≥4 antenatal visits during the index pregnancy had a protective effect against deaths due to PPH. Home delivery raised the odds of death by seven times.Conclusions: Deaths due to PPH can be reduced by ensuring institutional delivery, good antenatal care and better referral facilities, especially for mothers from weaker sections of society.

scholarly journals A case-control study on alcohol and psychiatric disorders as risk factors for drug abuse pattern

2002 ◽  
Vol 18 (6) ◽  
pp. 1571-1575 ◽  
Author(s):  
Claudia S. Lopes ◽  
Rosely Sichieri
Keyword(s):  
Risk Factors ◽  
Drug Abuse ◽  
Psychiatric Disorders ◽  
Odds Ratio ◽  
Drug Users ◽  
Case Control Study ◽  
Composite International Diagnostic Interview ◽  
Case Control ◽  
Drug Abusers ◽  
Control Study

We evaluated alcohol and psychiatric disorders as risk factors for the pattern of drug abuse/dependence in a matched case-control study (370 adults). Cases (drug abusers) and controls were selected in the community using the snowball technique and matched by sex, age, and friendship. Information was gathered using the "Composite International Diagnostic Interview" (CIDI). Three patterns of drug abuse/dependence were evaluated: any drug abuse/dependence, only cannabis, and cocaine and other drugs. Logistic conditional regression showed that alcohol dependence was strongly associated with pattern of drug abuse/dependence. Thus, compared to the "no drug abuse group", the odds ratio for association with diagnosis of abuse/dependence on cocaine and other drugs was 10.2 (95% CI: 4.9-21.2), whereas for abuse/dependence on cannabis only, the odds ratio was 1.0. For affective disorders, the odds ratio was 2.0 (95% CI: 1.10-3.64) for the group that received a diagnosis of abuse/dependence on cocaine and other drugs, whereas no association was found for those with abuse/dependence on cannabis only. In conclusion, there is not a homogeneous group of "drug users", and the role of risk factors depends on the drug use pattern.

scholarly journals Risk Factors of Infantile Diarrhea (A Case-Control Study)

2019 ◽  
Vol 32 (5-6) ◽  
pp. 125-34
Author(s):  
Iskandar Z. Lubis
Keyword(s):  
Risk Factors ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Bottle Feeding ◽  
Control Group ◽  
Case Group ◽  
Supplementary Food ◽  
Infantile Diarrhea ◽  
Control Study

From March thru April 1990 an unmatched case-control study had been conducted at the pediatric out-patient Clinic of Dr. Pirngadi Hospital Medan to assess risk factors of infantile diarrhea. The  study population were infants, aged younger than 21 months. The mothers of the infants were interviewed, using structured questionnaires. Sample size, calculated by means of formula, with 95 % level of confidence, 90 % power of study, 50% estimated proportion of exposure in the control-group and 2.0 estimated odds ratio, was 121. All infants with diarrhea were included in the case-group until a total number of 124 infants were reached. One control, an infant without diarrhea, was taken for each case from the nearest sequence of attendance after the case. A total of 20 risk factors were tested. Exposure was indicated from the last day before illness. Computerized statistical analysis was performed to calculate odds ratio, 95 % confidence interval and two tailed significance testing for qualitative dichotomic data by means of Chi square test. A total of nine factors were confirmed as risk factors of infantile diarrhea i.e mothers age than 20 years, working mother, not cleaning nipple before suckling the baby bottle feeding, having only one nursing botlle/teat, not ready for use nursing bottle/teat, giving left over supplementary food without reheating, no band-washing before giving supplementary food and malnutrition. The result of this study can be emphasized in health education, especially in diarrheal disease control of infancy; Further well-designed studies are needed.

scholarly journals Risk factors for mortality in ventilator-associated tracheobronchitis: a case-control study

2017 ◽  
Vol 15 (1) ◽  
pp. 61-64
Author(s):  
Leonilda Giani Pontes ◽  
Fernando Gatti de Menezes ◽  
Priscila Gonçalves ◽  
Alexandra do Rosário Toniolo ◽  
Claudia Vallone Silva ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Mechanical Ventilation ◽  
Intensive Care ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Intensive Care Patients ◽  
Microbiological Characteristics ◽  
Control Study

ABSTRACT Objective To describe the microbiological characteristics and to assess the risk factors for mortality of ventilator-associated tracheobronchitis in a case-control study of intensive care patients. Methods This case-control study was conducted over a 6-year period in a 40-bed medical-surgical intensive care unit in a tertiary care, private hospital in São Paulo, Brazil. Case patients were identified using the Nosocomial Infection Control Committee database. For the analysis of risk factors, matched control subjects were selected from the same institution at a 1:8.8 ratio, between January 2006 and December 2011. Results A total of 40 episodes of ventilator-associated tracheobronchitis were evaluated in 40 patients in the intensive care unit, and 354 intensive care patients who did not experience tracheobronchitis were included as the Control Group. During the 6-year study period, a total of 42 organisms were identified (polymicrobial infections were 5%) and 88.2% of all the microorganisms identified were Gram-negative. Using a logistic regression model, we found the following independent risk factors for mortality in ventilator-associated tracheobronchitis patients: Acute Physiology and Chronic Health Evaluation I score (odds ratio 1.18 per unit of score; 95%CI: 1.05-1.38; p=0.01), and duration of mechanical ventilation (odds ratio 1.09 per day of mechanical ventilation; 95%CI: 1.03-1.17; p=0.004). Conclusion Our study provided insight into the risk factors for mortality and microbiological characteristics of ventilator-associated tracheobronchitis.

scholarly journals Risk factors for hepatitis C virus infection in the Colombian Caribbean coast: A case-control study

Biomédica ◽  
2016 ◽  
Vol 36 (4) ◽  
pp. 564 ◽  
Author(s):  
Ismael de Jesús Yepes ◽  
Beatriz Lince ◽  
Clara Caez ◽  
Giovanni De Vuono
Keyword(s):  
Risk Factors ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Virus Infection ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Hepatitis C Virus Infection ◽  
Factores De Riesgo ◽  
Control Study

Introducción. Se estima que, aproximadamente, 6,8 a 8,9 millones de personas están infectadas por el virus de la hepatitis C en Latinoamérica, de las cuales menos del 1 % llega a recibir tratamiento antiviral. En los estudios llevados a cabo hasta ahora en Colombia, se ha propuesto determinar la prevalencia de la enfermedad en algunos grupos de riesgo, y no se ha hecho el análisis de otros factores potencialmente implicados en el contagio.Objetivos. Determinar los factores de riesgo tradicionalmente analizados y otros no estudiados antes para la hepatitis C crónica en la Costa Caribe colombiana.Materiales y métodos. Se hizo un estudio de casos y controles (1:3) emparejados por empresa promotora de salud y edad (± 10 años), en el primer nivel de atención de hepatología y gastroenterología. A todos los pacientes positivos en la prueba ELISA se les hizo una prueba confirmatoria de carga viral. En el análisis de regresión logística multivariable se determinaron los factores predictores independientes de infección.Resultados. La transfusión sanguínea (odds ratio, OR=159,2; IC95% 35,4-715; p<0,001) y el antecedente de hospitalización antes de 1994 (OR=4,7; IC95% 1,3-17,1; p=0,018) se determinaron como los dos únicos factores independientes predictores de infección.Conclusión. Es necesario comprobar la reproducibilidad de estos resultados y hacer estudios de costo-efectividad antes de recomendar su utilización en el diseño de nuevas estrategias de cribado.

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