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r>Born at 34-36 weeks was accompanied by recurrent asthma in early childhood development (adjusted OR 1.23,95% CI 1.07 1.41, P = 0.003), the researchers published in the October issue of Archives of Pediatrics and Adolescent Medicine. * Please note that, as a retrospective study of observation, it can record on, but can not prove causation, and are subject to confounding.
Almost all infants with respiratory syncytial virus infection in development, and most of the time, the disease is a simple upper respiratory tract infection.
However, some infants with severe lower respiratory tract involvement, resulting in an estimated 75,000 to 125,000 annual hospitalizations.
Although an immature respiratory syncytial virus infection, the risk of complications is high, little is known about risk factors and moderate the consequences of premature or full-term infants.
To explore this, Escobar and his colleagues on the 71 102 babies at 32 weeks or reed from 1996 to 2002 after the birth records.
Slightly more than half were male, the mother of the third quarter was 18 to 34 years old. * Laboratory confirmed that the medical treatment of respiratory syncytial virus infection, no adjustments or 3.19 (95% CI is 2.68 to 3.79)
* Preterm (32-33 weeks gestation) or 1.86 (95% CI is 1.45 to 2.38)
* Oxygen exposure and bronchopulmonary dysplasia, or 1.80 (95% CI for the 1.562.08)
Other projections include wheezing later men, is for the gestational age, African American and Asian race, family history of asthma small.
The only factor, is associated with a lower risk of wheezing in the bivariate analysis in 41 weeks or later (not to adjust or 0.88,95% CI 0.800.98) was born.
Preterm children who relapsed in the first year of life had asthma, RSV infection rate of 16.23%, compared with 6.22 in those who were not infected (no adjustments or 2.92,95% CI is 1.88 to 4.55)%.
Multivariate analysis, controlling for all other breathing prediction that in 41 weeks after birth or to maintain protection and adjusted odds ratio 0.90 (95% CI 0.81 to 0.99, P = 0.04). * Long-term hospitalization of respiratory syncytial virus infection, adjusted or 3.42 (95% CI 2.01 5.82, P <0.001)
* African-American ethnicity, adjusted or 1.39 (95% CI 1.24 to 1.56, P <0.001)
* Asia's game, adjustments or 1.21 (95% CI 1.10 1.33, P <0.001)
* Parental history of asthma, adjustment or 3.04 (95% CI 1.36 to 6.78, P = 0.007)
* Bronchopulmonary dysplasia, adjusted or 4.94 (95% CI for the 2.509.77, P <0.001)
* Outpatient treatment of respiratory syncytial virus, adjusted or 2.07 (95% CI 1.61 2.67, P <0.001)
Asphyxia supplemental oxygen exposure was also significantly related to the development of recurrent wheezing later in the neonatal period.
The researchers pointed out that the premature child, neonatal hypoxic exposure hazards are well known, but this is for 32 weeks with the newborn babies born on or after the first use of oxygen breathing Association documents.
"The focus of this toxicity, leading to the American Academy of Pediatrics are also allowed to use, rather than 100% oxygen, a potential toxicity of oxygen re-assessment of the wider part of the new neonatal resuscitation guidelines for indoor air," they write Road.
Although the gender, race, family history of asthma in the multivariate model to explain the power advantage, the baby's response to respiratory syncytial virus infection may be important, the researchers explained.
"Infants with respiratory syncytial virus infection serious enough to come to the reaction may be genetically predetermined medical treatment of allergic bronchoconstriction is when the population facing the development of the trigger," they suggested.
A major limitation of this study is that almost no laboratory-confirmed respiratory tract infection respiratory syncytial virus or eliminate half the infants, so the data may be an underestimated. In addition, the interference factors may aly exist.
The s also pointed out that the unique nature of health care settings may limit the extension of the study results to other populations. For example, the study population has been in the first year of life elsewhere in the country than an organized day care and much lower rates of tobacco exposure to a much lower risk.


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