Study of wheezing and its risk factors in the first year of life in the Province of Salamanca, Spain. The EISL Study.

Objectives: To determine the prevalence of wheezing and its associated risk factors in infants in the first year of life in the province of Salamanca, Spain.

Methods: A multicentre, cross-sectional, descriptive epidemiological study was designed to evaluate a representative sample of 750 infants in the first year of life, born in the province of Salamanca between 1 June 2008 and 30 September 2009. The study was based on a previously validated and standardised written questionnaire administered among the parents of those children seen for control at 12 months of age in any of the Primary Care centres in the province of Salamanca.

[Study on feeding of infants].

Objective: To evaluate feeding behaviour in infants, with regard to the duration of breast-feeding (BF), the beginning of artificial feeding (AF) and the introduction of complementary feeding (CF).

Design: Medical audit. Retrospective study.