Response options: 0 cigarettes, 1 to 5 cigarettes, 6 to 10 cigarettes, 11 to 15 cigarettes, 16 to 20 cigarettes, 21 to 25 cigarettes, 26 to 30 cigarettes, More than 30 cigarettes, Valid skip, Don't know, Refusal, Not stated
Response options: 0 to 9 years old, 10 to 14 years old, 15 to 19 years old, 20 to 24 years old, 25 to 29 years old, 30 to 34 years old, 35 to 39 years old, 40 to 44 years old, 45 to 49 years old, 50 years old and over, Valid skip, Don't know, Refusal, Not stated