Table 1.
Percentage of Smokers Rating E-cigarettes as being Less Harmful, As Harmful or More Harmful than Cigarettes using Indirect versus Direct Measures
|
Using Indirect Measures
|
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|---|---|---|---|---|---|---|---|---|
| E-cigs less harmful | Same harm | E-cigs more harmful | Total | |||||
| % | (95% CI) | % | (95% CI) | % | (95% CI) | % | (95% CI) | |
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| Using Direct Measures | ||||||||
| E-cigs less harmful | 93.9 | (90.1 –96.3) | 5.6 | (3.2 –9.4) | 0.5 | (0.1 –2.1) | 60.0 | (54.6 –65.1) |
| Same harm | 48.8 | (39.2 –58.4) | 47.8 | (38.3 –57.5) | 3.4 | (1.4 –8.4) | 28.8 | (24.2 –33.8) |
| E-cigs more harmful | 36.1 | (22.7 –52.2) | 36.2 | (22.5 –52.6) | 27.7 | (14.8 –45.8) | 11.3 | (8.3 –15.2) |
| Total | 73.0 | (67.9 –77.5) | 22.7 | (18.5 –27.5) | 4.4 | (2.6 –7.3) | 100 | …… |
Abbreviations: E-cig, Electronic cigarette; CI, Confidence Interval