Table 3 Relative Risk ratio’s for smoking abstinence, all comparisons between conditions
| Comparisons | FU1 | FU2 | FU3 | Continuous abstinence | Prolonged abstinence |
|---|---|---|---|---|---|
| E-cigarette vs. NRT |
1.05 [0.79–1.40] 0.75 |
1.23 [0.89–1.69] 0.22 |
1.71 [1.04–2.81] 0.03* |
1.65 [0.72–3.80] 0.24 |
1.30 [0.65–2.62] 0.46 |
| E-cigarette vs. Medication |
0.79 [0.59–1.05] 0.10 |
0.84 [0.61–1.15] 0.27 |
1.20 [0.69–2.10] 0.52 |
0.71 [0.32–1.56] 0.39 |
0.83 [0.38–1.77] 0.62 |
| E-cigarette vs. E-cigarette + NRT |
1.11 [0.75–1.64] 0.60 |
1.02 [0.70–1.49] 0.91 |
1.20 [0.69–2.10] 0.52 |
0.81 [0.35–1.86] 0.62 |
0.83 [0.38–1.77] 0.62 |
| E-cigarette vs. No aid |
0.93 [0.66–1.32] 0.69 |
1.02 [0.69–1.49] 0.94 |
1.24 [0.69–2.23] 0.47 |
0.89 [0.37–2.14] 0.79 |
1.03 [0.44–2.44] 0.94 |
| NRT vs. Medication |
0.75 [0.56–1.00] 0.05 |
0.68 [0.48–0.96] 0.03* |
0.70 [0.37–1.32] 0.27 |
0.43 [0.18–1.05] 0.06 |
0.64 [0.89–1.41] 0.26 |
| NRT vs. E-cigarette + NRT |
1.06 [0.72–1.56] 0.77 |
0.83 [0.56–1.24] 0.37 |
0.70 [0.37–1.32] 0.27 |
0.49 [0.19–1.24] 0.13 |
0.64 [0.89–1.41] 0.26 |
| NRT vs. No aid |
0.89 [0.63–1.26] 0.51 |
0.83 [0.55–1.24] 0.36 |
0.73 [0.38–1.39] 0.33 |
0.54 [0.20–1.42] 0.21 |
0.80 [0.33–1.93] 0.61 |
|
Medication vs. E-cigarette + NRT |
1.41 [0.96–2.09] 0.08 |
1.22 [0.82–1.81] 0.32 |
1.00 [0.51–1.98] 1.00 |
1.14 [0.47–2.79] 0.77 |
1.00 [0.43–2.35] 1.00 |
| Medication vs. No aid |
1.19 [0.84–1.68] 0.34 |
1.22 [0.82–1.81] 0.34 |
1.03 [0.51–2.09] 0.93 |
1.25 [0.49–3.20] 0.64 |
1.25 [0.49–3.20] 0.64 |
|
No aid vs. E-cigarette + NRT |
1.90 [0.77–1.84] 0.43 |
1.01 [0.64–1.57] 0.98 |
0.97 [0.48–1.95] 0.93 |
0.91 [0.35–2.42] 0.85 |
0.80 [0.31–2.04] 0.64 |
|
E-cigarette vs. All other conditions |
0.98 [0.77–1.24] 0.83 |
1.05 [0.82–1.36] 0.68 |
1.39 [0.96–2.02] 0.08 |
1.03 [0.56–1.90] 0.93 |
1.02 [0.59–1.79] 0.34 |