Risk of Pertussis in Relation to Degree of Prematurity in Children Less Than 2 Years of Age
| Autor: | Jann Storsaeter, Elmira Flem, Dag Moster, Ida Laake, Øystein Rolandsen Riise, Marianne A. Riise Bergsaker, Didrik F. Vestrheim |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Microbiology (medical)
Male Risk Pediatrics medicine.medical_specialty Whooping Cough Birth weight Gestational Age Degree (temperature) Cohort Studies 03 medical and health sciences 0302 clinical medicine 030225 pediatrics medicine Birth Weight Humans 030212 general & internal medicine Registries Vaccine Potency Pertussis Vaccine business.industry Norway Infant Newborn Gestational age Infant Infant Low Birth Weight Hospitalization Low birth weight Infectious Diseases Increased risk Recien nacido Child Preschool Pediatrics Perinatology and Child Health Female medicine.symptom business Tos ferina Infant Premature Cohort study |
| Zdroj: | The Pediatric infectious disease journal. 36(5) |
| ISSN: | 1532-0987 |
| Popis: | A few previous studies reported increased risk of pertussis in children with birth weight less than 2500 g. The risk of pertussis by degree of prematurity has not been determined in a cohort study. The vaccine effectiveness (VE) against reported pertussis in preterm infants is unknown.Data were obtained from the Medical Birth Registry of Norway (1998-2010) and linked to other national registries. In total, 713,166 children were included in our study and followed until 2 years of age. Incidence rate ratios (IRRs) and confidence intervals (CIs) were estimated with Poisson regression.We identified 999 reported cases of pertussis. We observed a higher rate of reported pertussis in preterm than in full-term infants, IRR = 1.65 (95% CI: 1.32-2.07). Compared to full-term infants, the risk of reported pertussis in infants born at gestational age (GA) 35-36, 32-34 and 23-27 weeks were higher [IRRs = 1.49 (95% CI: 1.11-2.01), 1.63 (95% CI: 1.06-2.51) and 4.49 (95% CI: 2.33-8.67), respectively]. Moreover, preterm infants had a higher rate of pertussis-related hospitalization than full-term infants [IRR = 1.99 (95% CI: 1.47-2.71)]. The VE against reported pertussis for the third dose was 88.8% (95% CI: 84.3-92.0) in full-term infants and 93.0% (95% CI: 85.8-96.5) in preterm infants.In this cohort study, preterm infants including those born at GA 35 and 36 weeks had increased risk of reported pertussis. The VE was similar in preterm and full-term infants. |
| Databáze: | OpenAIRE |
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