Longitudinal study of long-term smoking behaviour by biomarker-supported determination of exposure to smoke

BMC Public Health

Table 1 Study activities per timepoint

	Day 1 Visit 1	Days 2 to 8	Day 9 Visit 2	Day 10	Day 11	Day 12 Visit 3	Call 1	Call 2	Call 3
Informed consent^a	X
Demographic data (height^b and weight)	X
Medical history	X
ECG^b	X
Spirometry (FEV₁)	X
Blood pressure	X
Inclusion/exclusion criteria	X
Materials provided to Subject
Urine collection bottles			X
Aluminium containers for butt collection	X		X
Issue of cigarettes for 1 day			X
Filter cutters with integrated tin			X
Sensory questionnaire			X
Subject activities
Usual subject environment		X		X	X		X	X	X
Smoke own supply of cigarettes	X	X	X	X		X	X	X	X
Collection of cigarette butts		X	X	X
Collection of part-filter tips					X
Start 24 hour urine collection					X
End 24 hour urine collection						X
Smoke provided cigarettes					X
Complete questionnaires	X		X		X	X
Telephone interview				X			X	X	X
Provided by Subject
Butts			X			X
Urine						X
Sensory questionnaire						X
Filter tip						X
Saliva						X

^aInformed Consent will be taken at visit 1, first fieldwork period only or if updated.
^bHeight and ECG will be measured at visit 1, first fieldwork period only.

ISSN: 1471-2458