Table 4.

E-cigarette use behaviour, reasons for use and perceptions of harm; by gender

	Male	Female	Total	P value
Use behaviour
Ever use (n=1425)
Yes	296 (51.2)	280 (33.1)	576 (40.4)	<0.001
No	282 (48.8)	566 (66.9)	848 (59.6)
Current use (n=1448)
Yes	52 (8.8)	35 (4.1)	87 (6.0)	<0.001
No	538 (91.2)	823 (95.9)	1361 (94.0)
Daily use (n=1449)
Yes	18 (3.1)	6 (0.7)	24 (1.7)	0.001
No	572 (96.9)	852 (99.3)	1424 (98.3)
Daily use for a month or more (n=428)
Yes	36 (16.1)	14 (6.8)	50 (11.7)	0.003
No	188 (83.9)	191 (93.2)	379 (88.3)
Use of nicotine (n=47)
Yes	27 (77.1)	5 (45.5)	32 (69.6)	0.046
No	8 (22.9)	6 (54.5)	14 (30.4)
Use in indoor smokefree spaces (n=266)
No	114 (79.2)	100 (82.0)	214 (80.5)	0.566
Other*	30 (20.8)	22 (18.0)	52 (19.5)
Use in outdoor smokefree spaces (n=262)
No	107 (75.9)	87 (71.3)	194 (73.8)	0.400
Other*	34 (24.1)	35 (28.7)	69 (26.2)
Reasons for use
To quit smoking (n=417)
Yes	8 (3.7)	2† (1.0)	10 (2.4)	0.076
No	210 (96.3)	197 (99.0)	407 (97.6)
For enjoyment (n=417)
Yes	35 (16.1)	25 (12.6)	60 (14.4)	0.310
No	183 (83.9)	174 (87.4)	357 (85.6)
Curiosity/just wanted to try them (n=417)
Yes	139 (63.8)	142 (71.4)	281 (67.4)	0.098
No	79 (36.2)	57 (28.6)	136 (32.6)
Perceptions of harm
Less harmful than cigarettes (n=1022)
Yes	338 (81.1)	440 (72.8)	778 (76.2)	0.002
Other‡	79 (18.9)	164 (27.2)	243 (23.8)

The cells contain rounded weighted counts and sometimes the marginal totals are not exactly the sum of the component cells.

*Includes sometimes, fairly often and very often.

†Expected cell count less than 5.

‡Includes about same as cigarettes, somewhat more harmful than cigarettes, much more harmful than cigarettes and do not know.