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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Addiction. 2018 Oct 16;114(2):294–303. doi: 10.1111/add.14446

Table 5. Prevalence of e-cigarette use among long term ex-smokers in England 2014-2017 stratified by SES group.

Overall
(N=13782)		 2014
(N=3170)		 2015
(N=3462)		 2016
(N=3533)		 2017
(N=3617)
SES group
AB
(N=3952) ref		 1.00
-		 1.00
-		 1.00
-		 1.00
-		 1.00
-
C1
(N=4301)		 1·38
(0·74-2·66)		 1·37
(0·74-2·67)		 1·77
(1·05-3·08) 		1·23
(0·84-1·81)		 1·28
(0·91-1·81)
C2
(N=2886)		 2·03
(1·08-3·96) 		2·07
(1·10-4·06) 		2·83**
(1·66-4·97) 		1·27
(0·83-1·95)		 1·50
(1·03-2·19)
D
(N=1541)		 2·29
(1·13-4·70) 		2·35
(1·15-4·86) 		2·92**
(1·57-5·48) 		2·14**
(1·36-3·35) 		1·34
(0·85-2·10)
E
(N=1102)		 1·14
(0·37-3·03)		 1·14
(0·36-3·06)		 2·87*
(1·48-5·56) 		0·81
(0·38-1·58)		 1·90
(1·14-3·07)

Ns are not weighted. Results for prevlance of e-cigarette use are presented as ORs (95% CI) against the indicated referent. <0·05 p values are indicated in bold. *p<0·01, **p<0·001, ***p<0.0001.