STS Hospital-level stroke surveillance in Lilongwe, Malawi: providing tools for evaluating interventions in hypertension and stroke in sub-Saharan Africa Lilongwe
For how many years did you consume this tobacco in total?(relevant if Q20.6= (othtobac):Have you ever taken other tobacco regularly (i.e. at least weekly)? = Formerly (stopped more than 6 months ago) or Current (in last 6 months)).