Table 1.

Unadjusted quit ratio for daily smoking (with 95% confidence intervals) according to snus use status in nine Norwegian surveys comprising 14,761 male and 4508 female ever-smokers.

Survey	Year	Number of Ever-Smokers	Age Group	Daily Snus User	Never Used Snus	p-value
Males
1	2003–2008	3604	16–74	80.4 (74.9–85.9)	51.9 (50.1–53.7)	< 0.001
2	2007	423	16–20	54.8 (45.2–64.9)	22.9 (17.4–28.4)	< 0.001
3	2006	458	19–30	81.1 (68.5–93.7)	62.7 (56.9–68.4)	0.010
4	2007	2016	15–91	61.6 (53.5–69.7)	52.5 (50.2–54.8)	0.035
5	2006	729	21–30	75.4 (65.2–85.6)	44.9 (40.2–49.6)	< 0.001
6	2006	639	21–30	89.7 (81.9–97.5)	50.0 (45.1–54.9)	< 0.001
7	2007	2572	20–50	72.7 (81.9–97.5)	43.3 (40.6–46.0)	< 0.001
8	2009–2013	1543	15–74	80.8 (75.4–86.2)	55.7 (52.9–58.5)	< 0.001
9	2009–2013	2777	15–80	74,6 (69.8–79.4)	65.5 (63.6–67.5)	< 0.001
Total	--	14,761	Weighted mean	74.8 (72.8–76.8)	52.3 (51.4–53.2)	< 0.001
Females
8	2009–13	1472	15–74	85.7 (75.0–95.2)	52.0 (49.4–54.6)	< 0.001
9	2009–13	3036	15–80	74.8 (65.8–83.8)	61.6 (59.8–63.4)	< 0.001
Total	--	4508	Weighted mean	78.4 (71.5–85.3)	56.1 (54.6–57.6)	< 0.001