electronic cigarettes were asked, “Have you tried Electronic Cigarettes or E-cigarettes, even just one time?” Respondents who reported yes were classified as having tried electronic cigarettes. Those who had tried electronic cigarettes were asked, “How often do you now vape or use e-cigarettes? every day, some days, or not at all.” Respondents who reported every day or some days were classified as current users. All current users were asked a set of questions about why they used e-cigarettes. Mississippi Poison Control Center The Mississippi Poison Control Center provided data on the number of reported exposure cases of e-cigarette ingestion in 2010-2015. Results Youth E-Cigarette Use Overall response rates range from 65% to 78%. Tables 1 and 2 provide the school, student, and overall response rates for each year. Sample characteristics for each year did not vary significantly across years. Table 1. Response Rates, Middle School Samples Table 1. Response Rates, Middle School Samples Table 1. Response Rates, Middle School Samples School Student Overall 2010
85.4%
81.8% Student
2011 2010
87.5% 85.4%
80.2% 81.8%
70.2% 69.9%
2012 2011
82.0% 87.5%
83.7% 80.2%
68.6% 70.2%
2013 2012
90.0% 82.0%
87.6% 83.7%
78.8% 68.6%
2014 2013
80.0% 90.0%
84.9% 87.6%
67.9% 78.8%
2014
80.0%
84.9%
67.9%
School
Overall
69.9%
Table 2. Response High School Samples School Samples Table 2. Response Rates, High Rates,
not vary by sex. Although middle school students who smoked cigarettes were more likely to report current e-cigarette use (63.9%) than nonsmokers (2.6%), p<.05, many current e-cigarette users were not cigarette smokers (44.8%) and 14.2% had never smoked a cigarette.
Among high school students, Table ever3.use of e-cigarettes increased from Trends in E-Cigarette Use among Youth 1.9% to 21.6% and current use increased from 1.2% to 10.1% from Ever Use, High Ever Use, Middle Current Use, Year 2010 to 2014 (Table 3). School Student School Students Middle School Students
Perce Weighted Percent In 2014, ever and current use did not differ across sex or grade. How-Weighted & 95% CI & 95% CI Weighted & 95%and ever, white students were more likely to report ever usePercent (31.0%) CI current use (13.6%) than African American students (11.1% and 1.9% (±1. 2010 0.9% (±0.6) 0.6% (±0.4) 6.4%) p<.05. Although high school students who smoked cigarettes 2011 (±0.7) were more likely to report current e-cigarette2.0% use(±0.9) (36.0%)1.0% than non- 5.9% (±2. 3.5% (±1.4)e-cigarette 1.1% (±0.6) smokers (5.4%,) p<.05, more2012 than half of current users 8.4% (±3. (51.9%) were not current cigarette smokers and 18.2%1.5% had(±0.7) never 9.7% (±2. 2013 3.2% (±1.2) smoked a cigarette. 2014
Adult E-Cigarette Use
10.7% (±3.0)
6.7% (±2.6)
Table 4. Trends in E-Cigarette Table 4. Trends in Adults E-Cigarette Use among Adults among Cooperation rates ranged Use
from 67.5% to 90.3%. From 2010 to 2014, ever use of e-cigarettes use among Mississippi adults increased from 0.3% to 20.1% and current use increased from 0.2% to 6.8% (Table 4). In 2014, ever and current use varied by sex, age, race, and education level (Table 5).
Year
Ever Use
Current Use,
Weighted Percent & 95% CI
Weighted Percent & 95% CI
2010
0.3% (±0.6)
0.2% (±0.4)
2011
4.5% (±0.9)
0.5% (±0.7)
2012
9.6% (±1.4)
4.0% (±0.6)
2013
12.1% (±1.2)
5.7% (±0.7)
2014
20.1% (±3.0)
6.8% (±2.6)
School Samples Table 2. Response Rates, High School
Student
2010
88.0%
84.4% Student
2011 2010
90.0% 88.0%
78.7% 84.4%
70.8% 74.3%
Ever User
Current User
2012 2011
82.0% 90.0%
82.6% 78.7%
67.8% 70.8%
Weighted Percent &
Weighted Percent &
95% CI
95% CI
School
Overall Overall
74.3%
2013 2012
80.0% 82.0%
82.4% 82.6%
65.9% 67.8%
2014 2013
88.0% 80.0%
83.3% 82.4%
73.3% 65.9%
2014
88.0%
83.3%
73.3%
Overall, ever use of e-cigarettes among middle school students increased from 0.9% in 2010 to 10.7% in 2014, while current use increased from 0.6% to 6.7% (Table 3). In 2014, ever and current use did not differ across race or grade. However, males (14.7%) were more likely than females (6.7%) to report ever use, p<.05. Current use did
Ever Use, Middle School Students Weighted Percent & 95% CI
Current Use, Middle School Students Weighted Percent & 95% CI
Ever Use, High School Students Weighted Percent & 95% CI
Current Use, High School Students
30
Weighted Percent & 95% 30 CI
2010
0.9% (±0.6)
0.6% (±0.4)
1.9% (±1.1)
1.2% (±0.8)
2011
2.0% (±0.9)
1.0% (±0.7)
5.9% (±2.0)
2.3% (±1.1)
2012
3.5% (±1.4)
1.1% (±0.6)
8.4% (±3.6)
2.7% (±1.2)
2013
3.2% (±1.2)
1.5% (±0.7)
9.7% (±2.6)
2.9% (±1.0)
2014
10.7% (±3.0)
6.7% (±2.6)
Table 4. Trends in E-Cigarette Use among Adults Year
Ever Use
Current Use,
21.6% (±3.0)
Sex
p<.05
10.1% (±2.0)
p<.05
Male
24.5% (±3.1)
8.9% (±2.1)
Female
16.2% (±2.5)
4.9% (±1.5)
Race
p<.05
p<.05
African American
12.2% (±2.8)
3.9% (±1.6)
White
24.2% (±2.8)
8.8% (±1.8)
Age
Table 3. Trends in E-Cigarette Table 3. Trends in E-Cigarette Use among Youth Use among Youth Year
Table 5. Demographic Predictors of E-Cigarette Use Table 5. Demographic Predictors of E-Cigarette Use among Adults, 2014 among Adults, 2014
p<.05
p<.05
18-24
31.9% (±6.3)
8.5% (±3.7)
25-44
29.6% (±4.1)
11.2% (±2.8)
45-64
14.7% (±3.0)
5.1% (±1.8)
5.2% (±2.6)
1.5% (±1.4)
65+ Education
p<.05
Less than HS Degree
18.1% (±5.2)
4.3% (±2.6)
HS Degree or GED
21.8% (±3.7)
7.0% (±2.3)
Some College
25.1% (±3.6)
9.0% (±2.5)
College Degree
11.9% (±3.9)
4.9% (±2.3)
JOURNAL MSMA
185
21.6% (±3.