Results (cell n and row %) for cross-tabulation of e-cigarette (e-cig) and cigarette (cig) usage categories at two time points
| Time 2 status | |||||
|---|---|---|---|---|---|
| Time 1 status | Non-user (%) | E-cig only (%) | Cig only (%) | Dual-user (%) | Marginal n/(%) |
| Non-user | 784 | 92 | 15 | 35 | 926 (71) |
| (85) | (10) | (2) | (4) | ||
| E-cig only | 22 | 151 | 1 | 41 | 215 (17) |
| (10) | (70) | (<1) | (19) | ||
| Cig only | 5 | 1 | 14 | 9 | 29 (2) |
| (17) | (3) | (48) | (31) | ||
| Dual-user | 9 | 6 | 7 | 110 | 132 (10) |
| (7) | (5) | (5) | (83) | ||
| Marginal n | 820 | 250 | 37 | 195 | 1302 |
| (Marginal %) | (63) | (19) | (3) | (15) | |
Status categories based on ever use of e-cigarettes and/or tobacco cigarettes.