Table 2. Quit rate, smoking reduction rates and quit attempts in intervention and control groups^a.

	Intervention group (n = 283)	Control group (n = 274)	Effect Size	p-value
Primary outcome at 12 months
Self-reported 7-day quit rate	26 (9.2)	38 (13.9)	0.073	0.08
Secondary outcome
Biochemically validated quit rate, n (%)
12 months	9 (3.2)	14 (5.1)	0.049	0.25
Self-reported reduction rateb n (%)
3 months	29 (10.2)	46 (16.8)	0.096	0.02
6 months	38 (13.4)	39 (14.2)	0.012	0.78
12 months	42 (14.8)	40 (14.6)	0.003	0.94
Blood Profile
HbA1c level at 12 monthsc mean ± SE
%	7.95 ± 0.11	8.05 ± 0.11	−0.41	0.49
mmol/mol	63 ± 1.2	64 ± 1.2	−0.38	0.49
At action stage of readiness to quit, n (%)
3 months	22 (7.8)	17 (6.2)	0.031	0.47
6 months	32 (11.3)	33 (12.0)	0.012	0.89
12 months	33 (11.7)	47 (17.2)	0.078	0.12
Had quit attempt(s) for at least 24 hours since last assessment, n (%)
3 months	41 (14.5)	44 (16.1)	0.022	0.61
6 months	45 (15.9)	50 (18.2)	0.031	0.40
12 months	45 (15.9)	57 (20.8)	0.063	0.14

Note. ^aBy intention-to-treat analysis, assumed all non-responded follow-up patients as current smoker, not at action stage of readiness to quit and no quit attempt in past 24 hours; and ^bReduction by at least 50% from baseline; and ^cAdjusted for anti-diabetic medication step-up adjustment at 6-month.