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. 2013 Oct 31;13:1031. doi: 10.1186/1471-2458-13-1031

Table 2.

Tobacco use and exposure to SHS*

Variable
All patients
Male
Female
 
n (%)
n (%)
n (%)
 
Mean (SD)
Mean (SD)
Mean (SD)
  Median (IQR) Median (IQR) Median (IQR)
Current smoking
420/1924 (21.8)
378/1005 (37.6)
42/919 (4.6)
   Daily
361 (18.8)
328 (32.6)
33 (3.6)
   Less than daily
59 (3.1)
50 (5.0)
9 (1.0)
Past tobacco smoking
35/1918 (1.8)
30/1004 (3.0)
5/914 (0.6)
Age started smoking(N = 327)
18.5 (SD 5.6)
18.3 (SD 5.7)
19.7 (SD 4.8)
Duration of smoking in years(N = 384)
21.6 (SD 10.7)
21.9 (SD 10.4)
19.3 (SD 13.0)
Tobacco currently smoked**
 
 
 
   Manufactured cigarettes
412/415 (99.3)
371/374 (99.2)
41/41 (100)
   Hand-rolled cigarettes
52/413 (12.6)
48/372 (12.9)
4/41 (9.8)
   Pipes
2/412 (0.5)
2/371 (0.5)
0/41 (0.0)
   Cigars/cheroots/cigarillos
1/413 (0.2)
1/371 (0.3)
0/41 (0.0)
   Water pipe/other
0/410 (0)
0/371 (0.0)
0/41 (0.0)
Number of cigarettes per day(daily smokers, N = 352)
9.8 (SD 7.0)
9.8 (SD 7.0)
10.0 (SD 7.3)
8 (5–12.5)
8 (5–12.0)
6.5 (4–17.5)
Tobacco dependent & (daily smokers)
74/326 (22.7)
65/297 (21.9)
9/29 (31.0)
Current SLT use
76/1920 (4.0)
11/1005 (1.1)
65/915 (7.1)
Uses snuff by mouth(current SLT user)**
28/69 (40.6)
2/8 (25.0)
26/61 (42.6)
Uses snuff by nose(current SLT user)**
47/67 (70.2)
7/7 (100)
40/60 (66.7)
Non-smokers’ exposure to SHS smoke (≥7 days per month)**
 
 
 
   At home
224/1479 (15.2)
68/612 (11.1)
156/867 (18.0)
   At work
170/1478 (11.5)
98/612 (16.0)
72/866 (8.3)
   In café
174/1479 (11.8)
59/612 (9.6)
115/867 (13.3)
   In pub
140/1479 (9.5)
57/612 (9.3)
83/867 (9.6)
   In public transport
174/1479 (11.8)
52/612 (8.5)
122/867 (14.1)
   In shops 169/1477 (11.4) 58/611 (9.5) 111/866 (12.8)

*SHS = second-hand smoke; **each item is a separate question, therefore patients may have responded yes to several questions; &2-item brief dependency score for daily cigarette smokers ≥ 4; SLT = smokeless tobacco.