Lifetime prevalence and correlates of smoking behavior in Iranian adults’ population; a cross-sectional study

BMC Public Health

Table 4 The joint use of different types of smoking, Tehran, 2013–2015

Variables	General population N (%)
Cigarette & Waterpipe smoking^a
Never cigarette or waterpipe	683 (64.75)
Just cigarette	116 (11.00)
Just waterpipe	159 (15.05)
Both cigarette & waterpipe	97 (9.20)
Cigarette & second-hand^a
Never cigarette or exposure to second-hand	529 (50.19)
Just exposure to second-hand	312 (29.60)
Just cigarette	129 (12.24)
Both cigarette & exposure to second-hand	84 (7.97)
Waterpipe & second hand^a
Never waterpipe or exposure to second-hand	513 (48.67)
Just exposure to second-hand	289 (27.42)
Just waterpipe	145 (13.76)
Both waterpipe & exposure to second-hand	107 (10.15)
All three types of smoking^b
Never waterpipe, cigarette or exposure to second-hand	447 (42.41)
Just waterpipe	87 (8.25)
Just cigarette	71 (6.74)
Just exposure to second-hand	236 (22.39)
Waterpipe & cigarette	59 (5.60)
Waterpipe & exposure to second-hand	71 (6.74)
Exposure to second-hand & cigarette	48 (4.55)
All 3 types of smoking	35 (3.32)

^aThese are combination of every possible 2 smoking habits
^b“All three type of smoking” is every possible combination of all 3 smoking habits

ISSN: 1471-2458