Table 1.

Brands and tip ventilation for cigarettes used at each site

Study siteBrandVentilation (%)
CanadaPlayers Light1.2
DuMaurier0.7
DuMaurier Extra Light39
United States (New York)Marlboro13
Newport0.2
Newport Light23
Camel Light30
Marlboro Menthol21
United States (Minnesota)Marlboro13
Newport0.2
Marlboro Light23
Camel Light30
AustraliaPeter Jackson Super Mild31
Peter Jackson Extra Mild22
Peter Stuyvesant Filter15
Winfield Super Mild39
Winfield Extra Mild17
United KingdomMarlboro Gold49
Silk Cut Purple57
Benson & Hedges Gold25
Lambert & Butler Silver10