Correction: Gravely, S., et al. Awareness, Trial, and Current Use of Electronic Cigarettes in 10 Countries: Findings from the ITC Project. Int. J. Environ. Res. Public Health 2014, 11, 11691-11704.

The authors wish to make the following amendments to their paper published in International Journal of Environmental Research and Public Health.

The authors wish to make the following amendments to their paper published in International Journal of Environmental Research and Public Health [1]. These amendments only apply to the data from Brazil:

Page 11692, the abstract, line 15, the data collection for “Awareness of e-cigarettes” in Brazil should be 37%, and the data for “Trial of Electronic Cigarettes” in Brazil should be 8%. The correct sentence should be “There was considerable cross-country variation by year of data collection and for awareness of e-cigarettes (Netherlands (2013: 88%), Republic of Korea (2010: 79%), United States (2010: 73%), Australia (2013: 66%), Malaysia (2011: 62%), United Kingdom (2010: 54%), Canada (2010: 40%), Brazil (2013: 37%), Mexico (2012: 34%), and China (2009: 31%)), in self-reports of ever having tried e-cigarettes (Australia, (20%), Malaysia (19%), Netherlands (18%), United States (15%), Republic of Korea (11%), United Kingdom (10%), Brazil (8%), Mexico (4%), Canada (4%), and China (2%)), and in current use (Malaysia (14%), Republic of Korea (7%), Australia (7%), United States (6%), United Kingdom (4%), Netherlands (3%), Canada (1%), and China (0.05%))”.

Page 11696, Table 1, the data for Brazil are corrected. There are no changes in the data of any of the other countries. The corrected Table 1 is as follows:

Table 1

Sociodemographic and Smoking Characteristics and Patterns of E-Cigarette Use.

Country	N	Dates of Data Collection (Survey Mid-Point ‡)	Survey Mode	Response Rate (Average Retention Rate)	N (%) Female	Age (Mean ± SD)	% Aware of E-Cigarettes (95% CI)	% Ever-Tried E-Cigarettes (95% CI)	% Currently UsingE-Cigarettes (95% CI)
China	5583	May 2009–Oct 2009(Jul-2009)	Face-to-Face	52.8% ** (81.0%)	297 (5%)	50 ± 13	31% (28.7–34.0)	2% (1.8, 2.9)	0% (0.0–0.1)
Cigarette Smokers	5209				270 (5%)	50 ± 13	31% (28.4–33.8)	2% (1.8–3.0)	~0%
Recent quitters	103				7 (7%)	52 ± 13	40% (29.9–50.8)	2% (0–4.4)	0%
United Kingdom	1325	Jul 2010–Jun 2011 (Aug-2010)	Web or Phone	37.8% (72.8%)	726 (55%)	49 ± 13	54% (50.9–57.9)	10% (7.1–12.1)	4% (2.5–6.5)
Cigarette Smokers	977				544 (56%)	49 ± 13	56% (51.9–60.0)	11% (8.0–13.9)	5% (2.8–7.0)
Recent quitters	77				46 (60%)	47 ± 13	60% (44.4–74.9)	16% (0–32.9)	11% (0–28.5)
United States	1520	Jul 2010–Jun 2011(Aug-2010)	Web or Phone	25.6% (63.4%)	805 (53%)	51 ± 13	73% (70.5–76.4)	15% (12.1–17.8)	6% (3.6–7.6)
Cigarette Smokers	1262				671 (53%)	52 ± 13	74% (70.5–76.8)	18% (14.2–21.0)	6% (4.0–8.8)
Recent quitters	63				28 (44%)	50 ± 14	72% (54.6–90.0)	10% (1.0–19.9)	7% (0–15.8)
Canada *	1581	Jul 2010–Jun 2011(Aug-2010)	Web or Phone	49.5% (73.0%)	872 (55%)	47 ± 12	40% (36.5–42.6)	4% (2.7–5.3)	1% (0.6–2.1)
Cigarette Smokers	1243				683 (55%)	48 ± 12	40% (36.1–43.0)	4% (2.9–6.0)	2% (0.8–2.7)
Recent quitters	74				34 (46%)	47 ± 14	39% (25.2–53.7)	5% (0–12.4)	0% -
Republic of Korea	1753	Oct 2010–Dec 2010(Nov-2010)	Phone	14.5% (50.3%)	83 (5%)	49 ± 16	79% (77.0–81.2)	12% (10.4–14.1)	7% (5.4–8.4)
Cigarette Smokers	1560				76 (5%)	49 ± 16	80% (77.6–82.0)	13% (10.9–14.9)	7% (5.7–8.9)
Recent quitters	51				2 (4%)	51 ± 15	75% (61.0–89.3)	23% (9.3–36.5)	13% (1.5–24.1)
Malaysia *	1998	May 2011–Feb 2012 (May-2011)	Phone	N/A (56.7%)	22 (1%)	33 ± 23	62% (57.5–66.1)	19% (16.2–22.6)	14% (11.6–15.7)
Cigarette Smokers	1773				16 (1%)	31 ± 12	62% (57.4–67.0)	21% (17.3–24.2)	15% (12.4–17.0)
Recent quitters	69				3 (4%)	32 ± 14	69% (53.1–85.8)	13% (3.2–22.2)	6% (0.4–11.5)
Mexico *,†	2129	Oct 2012–Dec 2012(Nov-2012)	Face-to-Face	80.7% (73.6%)	801 (38%)	41 ± 15	34% (30.0–37.5)	4% (3.1–5.8)	-
Cigarette Smokers	1747				646 (37%)	40 ± 15	34% (30.0–37.8)	5% (3.4–6.7)	-
Recent quitters	70				25 (36%)	41 ± 15	48% (28.5–68.0)	3% (0.02–6.9)	-
Brazil *,†	1215	Oct 2012–Feb 2013(Jan-2013)	Phone	10.6% (41.4%)	787 (65%)	49 ± 14	37% (34.0–41.0)	8% (5.7–10.1)	-
Cigarette Smokers	1090				714 (65%)	49 ± 14	37% (33.7–41.0)	8% (5.8–10.7)	-
Recent quitters	45				25 (56%)	46 ± 13	38% (23.7–55.4)	8% (2.4–22.9)	-
Australia *	1492	Feb 2013–Sep 2013(Mar-2013)	Web or Phone	45.8% (74.5%)	801 (54%)	47 ± 13	66% (62.7–69.1)	20% (17.1–22.9)	7% (4.7–8.5)
Cigarette Smokers	1093				586 (54%)	48 ± 13	69% (65.6–73.0)	24% (20.4–27.7)	9% (6.2–11.4)
Recent quitters	88				46 (52%)	44 ± 13	55% (41.2–68.1)	16% (6.8–26.0)	2% (0–5.4)
Netherlands	1849	May 2013–Jun 2013(May-2013)	Web	64.6% (81.3%)	907 (49%)	40 ± 15	88% (86.4–90.4)	19% (16.4–20.7)	3% (2.4–4.1)
Cigarette Smokers	1420				686 (48%)	41 ± 15	87% (84.8–89.6)	20% (17.4–22.5)	4% (2.8–5.0)
Recent quitters	284				154 (54%)	38 ± 15	92% (88.9–95.5)	14% (8.9–19.5)	1% (0–1.9)

Notes: Between-country comparisons cannot be made due to differences in survey timing and sequence of questioning in the survey; Smokers and Recent quitters categories will not add to the overall total because ‘recent quitters’ have been restricted to those who reported quitting within 6 months of the survey; Response rate for each country are for Wave 1 (except for Mexico, where the Wave 2 replenishment response rate is used as a surrogate) and an average of retention rates up to the wave being analyzed are reported above. Sample characteristics (gender and age) are unweighted and all other results are weighted by the rescaled cross-sectional weights; Prevalence estimates were rounded to the nearest whole number; SD = Standard deviation; CI = Confidence interval; N/A = Not available; * Countries where the sale of e-cigarettes containing nicotine is banned or restricted; ** estimated (exact rate could not be obtained); † The question about current use of e-cigarettes was not asked in the survey; The ‘survey date mid-point’ is the month/year on which 50% of the respondents had successfully completed the survey for that wave. Dates are listed in chronological order (earliest to latest date surveyed).

The authors would like to apologize for any inconvenience caused to readers by these changes.