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NURSE: IF YOU HAVE NOT ALREADY DONE SO, ASK RESPONDENT FOR A SALIVA SAMPLE.
READ OUT: I would like to take a sample of saliva (spit). This simply involves dribbling saliva down a straw into a tube. The sample will be analysed for cotinine, which is related to the intake of tobacco smoke and is of particular interest to see if non-smokers may have raised levels as a result of 'passive' smoking.
Universe
Adults aged 16 and over and children aged 0-15 years living in private households in Scotland between June 2003 and December 2004;Adults;Children;National