Table 3.

Baseline smoking status and 2013 8-year longitudinal wellbeing and psychological distress^a

Smoking statusb		Wellbeing scores (SF-8)c				Psychological Distress (Kessler 6)d
		Physical Component		Mental Component
		aMDe	95 % CI	aMDe	95 % CI	aORf	95 % CI
Overall	Control	Ref.		Ref.		1.00	.
	Passive smoker	−0.94***	−1.37 to −0.51	−1.29***	−1.78 to −0.80	1.29***	1.10 to 1.52
	Former smoker	−1.46***	−1.93 to −1.00	−1.67***	−2.19 to −1.14	1.48***	1.25 to 1.76
	Current smoker	−1.68***	−2.18 to −1.17	−2.71***	−3.28 to −2.14	1.87***	1.55 to 2.24
	p-trend	<0.001		<0.001		<0.001
Male	Control	Ref.		Ref.		1.00	.
	Passive smoker	−0.44	−1.28 to 0.39	−1.75***	−2.68 to −0.81	1.26	0.90 to 1.76
	Former smoker	−0.91*	−1.75 to −0.06	−1.90***	−2.84 to −0.96	1.38	0.99 to 1.95
	Current smoker	−1.14**	−2.01 to −0.28	−2.90***	−3.87 to −1.94	1.76**	1.24 to 2.48
	p-trend	<0.001		<0.001		<0.001
Female	Control	Ref.		Ref.		1.00	.
	Passive smoker	−1.13***	−1.64 to −0.62	−1.14***	−1.72 to −0.56	1.32**	1.09 to 1.59
	Former smoker	−2.12***	−2.78 to −1.45	−2.06***	−2.82 to −1.31	1.72***	1.37 to 2.16
	Current smoker	−2.15**	−3.46 to −0.85	−4.19***	−5.67 to −2.71	2.01**	1.33 to 3.02
	p-trend	<0.001		<0.001		<0.001

*p < 0.05 **p < 0.01 ***p < 0.001

^aoutcomes adjusted for demographic attributes (age group, sex, marital status, urbanisation), SES (assets, income, education), and other factors (drinking, number of health conditions, body sizes)

^bsmoking status:—control (not active nor passive smokers from 2005 to 2013)

- passive smoker (not active but exposed to ETS in 2005)

- former smoker (previous smokers, 2005–2013)

- current smoker (active smoker in 2013)

^cmultiple linear regression for SF-8 physical and mental component scores

^dbinary logistic regression for psychological distress (Kessler 6 14–30) vs non distress (Kessler 6 6–13)

^eadjusted mean difference

^fadjusted odds ratio