Table 1.
Percent of students endorsing outcome expectations at baseline, by ever use and susceptibility status at follow-up.a
| Nonsusceptiblea at baseline (n = 1180/N = 209,958) | |||||
|
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| Overallb | Nonsusceptible at follow-up | Susceptible at follow-up | F-value | p-Value | |
|
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| Outcome | % (95% CI) | % (95% CI) | % (95% CI) | ||
| Expectations | |||||
| Stress | 3.18(2.07,4.86) | 2.52(1.42,4.43) | 6.95 (3.30,14.06) | 4.75 | 0.03 |
| Relax | 3.71 (2.47,5.55) | 3.15 (1.84,5.33) | 6.97 (3.29,14.16) | 2.73 | 0.10 |
| Energize | 2.19 (1.23,3.87) | 1.98(0.98,3.97) | 3.37 (1.07.10.1) | 0.59 | 0.45 |
| Slim | 3.00 (1.69,5.29) | 2.79 (1.39, 5.51) | 4.23 (1.59,10.79) | 0.47 | 0.50 |
| Concentrate | 1.83 (0.82,4.03) | 1.70 (0.64 4.45) | 2.58 (0.63, 9.97) | 0.22 | 0.64 |
| Endorse any | 5.38 (3.77,7.63) | 5.03 (3.24,7.74) | 7.35 (3.60,14.43) | 0.71 | 0.40 |
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| Nontobacco users at baseline (n = 1999/N = 357,035) | |||||
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| Overallb | Never user at follow-up | Ever user at follow-up | F-value, | p-value | |
|
| |||||
| Outcome | % (95% CI) | % (95% CI) | % (95% CI) | ||
| Expectations | |||||
| Stress | 6.79 (5.51, 8.34) | 6.14 (4.84,7.75) | 24.13(13.35,39.64) | 18.36 | <0.001 |
| Relax | 8.43 (6.82,10.38) | 7.96 (6.28,10.04) | 21.04 (10.90,36.72) | 7.43 | 0.008 |
| Energize | 3.57(2.64,4.81) | 3.50 (2.53, 4.83) | 5.47 (1.92,14.61) | 0.29 | 0.44 |
| Slim | 3.91 (2.80,5.44) | 3.99 (2.83,5.58) | 1.78 (0.56,5.50) | 1.85 | 0.18 |
| Concentrate | 2.69(1.68,4.30) | 2.53(1.66,3.86) | 7.11 (1.43,28.76) | 2.23 | 0.14 |
| Endorse any | 10.98(9.21,13.04) | 10.45 (8.66,12.55) | 25.33 (14.36, 40.71) | 9.01 | 0.004 |
CI = confidence interval.
Includes 6th, 8th, 10th graders from 5 counties surrounding the 4 largest cities in Texas (Austin, Dallas/Ft. Worth, Houston, San Antonio). “n” represents the sample size; “N”represents the population from which this sample was drawn. Weighted percentages are shown in the Table.
Susceptibility was measured by 3 items: “Have you ever been curious about smoking/using…”; “Do you think you will use any of the following products in the next 12 months?”; “If one of your close friends were to offer you one of the following products, would you use it?”. Respondents who answered “not at all curious” and “definitely not” to each question were coded as “nonsusceptible.”
Sample size varies due to differences in missing data.