Table 1.
Sample characteristics of the 2009 CDS sample overall and by ever e-cigarette use
| Characteristic N (%) or Mean ± SD |
Overall N=4,444 |
Ever E-Cigarette Users N=216 (4.9%) |
Never E-Cigarette Users N=4,228 (95.1%) |
|---|---|---|---|
| Age (yrs.) | 20.5 ± 2.9 | 20.7 ± 2.9 | 20.5 ± 2.9 |
| Gender*** | |||
| Female | 2,800 (63) | 98 (45) | 2,702 (64) |
| Male | 1,622 (37) | 115 (53) | 1,507 (36) |
| Year in school | |||
| Freshman | 1,179 (27) | 47 (22) | 1,132 (27) |
| Sophomore | 1,039 (23) | 58 (27) | 981 (23) |
| Junior | 1,139 (26) | 59 (27) | 1,080 (26) |
| Senior/5th yr. | 1,062 (24) | 51 (24) | 1,011 (24) |
| Race & Ethnicity | |||
| Asian/Pacific Islander | 126 ( 3) | 5 ( 2) | 121 ( 3) |
| Black | 366 ( 8) | 11 ( 5) | 355 ( 8) |
| Hispanic | 149 ( 3) | 11 ( 5) | 138 ( 3) |
| White | 3,515 (79) | 169 (78) | 3,346 (79) |
| Other | 197 ( 4) | 14 ( 6) | 183 ( 4) |
| Mother’s education | |||
| College degree or higher | 2,160 (49) | 104 (48) | 2,056 (49) |
| Some college or less | 1,872 (42) | 87 (40) | 1,785 (42) |
| Father’s education | |||
| College degree or higher | 1,801 (41) | 83 (38) | 2,051 (49) |
| Some college or less | 2,156 (49) | 105 (49) | 1,718 (41) |
| Greek status** | |||
| Member/Pledge | 639 (14) | 45 (21) | 594 (14) |
| Non-Greek | 3,550 (80) | 157 (73) | 3,393 (80) |
| Residence location** | |||
| On-campus | 2,239 (50) | 89 (41) | 2,150 (51) |
| Off-campus | 1,834 (41) | 105 (49) | 1,729 (41) |
| Sensation seeking*** | 3.4 ± 0.8 | 3.7 ± 0.8 | 3.4 ± 0.7 |
| Smoker status*** | |||
| Never | 2,253 (51) | 26 (12) | 2,227 (53) |
| Former/experimenter | 882 (20) | 65 (30) | 817 (19) |
| Current nondaily | 663 (15) | 72 (33) | 591 (14) |
| Current daily | 204 ( 5) | 20 ( 9) | 184 ( 4) |
| Lifetime hookah use*** | 1,596 (36) | 118 (55) | 1,478 (35) |
| Current binge drinking*** | 1,893 (43) | 145 (67) | 1,748 (41) |
| Current marijuana use*** | 1,033 (23) | 92 (43) | 941 (22) |
| Lifetime other illegal drug use*** | 601 (14) | 58 (27) | 543 (13) |
| E-cigarette harm perception*** | |||
| As harmful | 697 (17) | 37 (17) | 660 (16) |
| Less harmful | 1,042 (23) | 97 (45) | 945 (22) |
| More harmful | 107 ( 2) | 7 ( 3) | 100 ( 2) |
| Do not know | 2,226 (50) | 50 (23) | 2,176 (51) |
| Type of Institution | |||
| Private | 618 (14) | 31 (14) | 587 (14) |
| Public | 3,471 (78) | 164 (76) | 3,307 (78) |
*
p < 0.05,
**
p < 0.01, and
***
p < 0.001 from mixed-effects logistic regression for ever e-cigarette users vs. never with row characteristic as only covariate in model.