PURPOSE OF THE STUDY.
Several retrospective studies have identified attending chlorinated swimming pools during childhood as a risk factor for developing asthma and allergies later in life. These researchers collected data on a large birth cohort of children in the United Kingdom.
Data were available for 5738 children from an initial cohort of 14 062 live births.
Data on swimming were collected by questionnaire at ages 6, 18, 38, 42, …