Table 2.
Tobacco Use Trajectories Among Women Not Pregnant in W1 and Pregnant in W2 (n = 332, weighted % = 3.6, 95% CI = 3.1% to 4.1%) Based on Specific Product(s) Used in W1 (Top), as well as General Pattern of Tobacco Use in W1—Population Assessment of Tobacco and Health (PATH) Study, United States, 2013–2015
| Transitions between specific products and/or combinations across waves | ||||
|---|---|---|---|---|
| Wave 2 product use | ||||
| Wave 1 product use | Product or combination | Weighted % | 95% CI | Weighted N |
| Cigarette | Cigarette | 54.1 | 36.9% to 71.2% | 104,040 |
| (12.6%, 95% CI = 8.7% to 16.5%) | No tobacco products | 40.6 | 22.6% to 58.6% | 78,145 |
| Other tobacco product/combination | 5.3 | 0.0% to 10.6% | 10,224 | |
| Cigarette, e-cigarette | Cigarette | 52.5 | 21.2% to 83.8% | 32,589 |
| (3.2%, 95% CI = 1.2% to 5.2%) | No tobacco products | 26.6 | 3.9% to 49.4% | 15,547 |
| Other tobacco product/combination | 20.9 | 0.0% to 46.7% | 143,673 | |
| Cigarette, hookah | No tobacco products | 76.8 | 51.1% to 100.0% | 24,666 |
| (1.9%, 95% CI = 0.7% to 3.1%) | Cigarette | 11.6 | 0.0% to 39.2% | 5,192 |
| E-cigarette | 7.4 | 0.0% to 21.7% | 2,238 | |
| Other product/combination (7.1%, 95% CI = 4.5% to 9.7%) | 137,808 | |||
| Transitions between general patterns across waves | ||||
| Wave 2 pattern | ||||
| Wave 1 pattern | General tobacco use pattern | Weighted % | 95% CI | Weighted N |
| No use | No usea | 98.8 | 97.1% to 100.0% | 1400341 |
| (72.4%, 95% CI = 66.6% to 78.2%) | Single product useb | 0.9 | 0.0% to 2.5% | 12235 |
| Multiple product usec | 0.3 | 0.0% to 0.9% | 3859 | |
| Single product use | No use | 61.0 | 46.9% to 75.1% | 182875 |
| (15.2%, 95% CI = 11.0% to 19.4%) | Single product use | 35.3 | 22.0% to 48.7% | 104040 |
| Multiple product use | 3.7 | 3.1% to 18.0% | 10224 | |
| Multiple product use | No use | 55.7 | 42.2% to 69.2% | 133669 |
| (12.4%, 95% CI = 7.5% to 17.2%) | Single product use | 33.7 | 19.5% to 47.9% | 83437 |
| Multiple product use | 10.6 | 3.1% to 18.0% | 24968 | |
Overall prevalence of specific tobacco products and/or tobacco product combinations and general patterns is provided in W1 (column 1).
aDid not meet criteria for current use of tobacco cigarettes or any other noncigarette tobacco product.
bSingle product users met criteria for being a current tobacco cigarette smoker or current user of another product, and were nonusers across all other products examined.
cMultiple product users included both dual users (respondents who met criteria for being current users of tobacco cigarettes plus one additional noncigarette tobacco product, or current users of two noncigarette tobacco products, and were nonusers across all other products examined) and poly users (respondents using ≥3 tobacco products).