Incidence of adverse reactions to vaccines in a paediatric population.

Objective: To detect the appearance and specify the types of adverse reactions to vaccines registered in a paediatric population.

Patients And Methods: A 6-month, prospective, observational, multicentre epidemiological vaccine safety study was undertaken in 2002 covering a paediatric population subject to vaccine administration. A two-phase telephone survey of all patients was conducted, comprising an initial call at 1 week and a follow-up call at 30 days after the vaccine administration date.

Prevalence of traumatic crown fractures to permanent incisors in a childhood population: Móstoles, Spain.

- The aim of this study was to ascertain the prevalence of traumatic crown fractures in a childhood population and identify the risk factors associated with the same. A cross-sectional study was conducted, covering 470 schoolchildren and surveying socio-demographic variables, overweight, overbite, number of teeth, cause, setting, season, type of injury and restoration. We measured prevalence, performed univariate and multivariate analyses of risk factors for crown fracture, and calculated the Odds Ratio (OR) and its 95% confidence intervals (95% CI).