Childhood vaccination should have been included in asthma study

BMJ 1998;317:205 ( 18 July )

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Childhood vaccination should have been included in asthma study

The first 150 words of the full text of this article appear below.

EDITOR $---$ Kaur et al's finding that children aged 12-14 years in cities had less asthma (30.3%) than those in rural areas (35%)¹ must lead to questions about the role of air pollution in asthma.

What I found disappointing was the absence in the questionnaire of any questions about childhood vaccination. Odent foundthat children aged 8 years who had been immunised against whoopingcough as babies had nearly six times the incidence of asthma comparedwith children who were not immunised.² And in Christchurch,New Zealand, the Wellington asthma research group studied 1265children aged 10 years³ and found that none of the 23 childrenwho had not received diphtheria, pertussis, and tetanus or polioimmunisations had recorded consultations for asthma or other allergicillnesses whereas 23% of the immunised children had had episodesof asthma and 30% had had consultations for other allergic illnesses.

These reports point a strong finger of suspicion . . . [Full text of this article]

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