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. 2017 Feb 15;14(2):193. doi: 10.3390/ijerph14020193

Table 2.

Results of the mixed-effects models with respect to visual analogue scale (VAS) and e-VAS.

Outcome Index Model χ2 (df) p Condition Pre vs. Post1 * t (df) p Pre vs. Post1–5 * t (df) p
VAS Moment 95.52 (5) <0.01 −19.43 −8.31 (1) <0.01 −14.88 −7.82 (1) <0.01
Moment * Nicotine Level 11.01 (6) 0.09
Nicotine −26.76 −8.20 (1) <0.01 −18.79 −7.95 (1) <0.01
No-Nicotine −12.10 −3.66 (1) <0.01 −10.97 −3.70 (1) <0.01
Moment * Nicotine Level * Aroma 5.99 (5) 0.31
Moment * Nicotine Level * Visual Cues 6.87 (5) 0.23
Moment * Nicotine Level * Handling 9.52 (5) 0.09
Moment * Nicotine Level by Manual 2.49 (6) 0.87
Moment * Nicotine Level by Unipod 20.52 (6) <0.01
e-VAS Moment 37.79 (5) <0.01 11.14 −4.77 (1) <0.01 −7.07 −3.79 (1) <0.01
Moment * Nicotine Level 10.35 (6) 0.11
Nicotine −15.42 −4.70 (1) <0.01 −8.40 −3.55 (1) <0.01
No-Nicotine −6.86 −2.10 (1) <0.01 −5.75 −2.00 (1) <0.05
Moment * Nicotine Level * Aroma 3.73 (5) 0.59
Moment * Nicotine Level * Visual Cues 9.95 (5) 0.08
Moment * Nicotine Level by Blind 4.48 (6) 0.61
Moment * Nicotine Level by Unrestricted 15.75 (6) <0.05
Moment * Nicotine Level * Handling 9.62 (5) 0.09
Moment * Nicotine Level at Manual 8.76 (6) 0.19
Moment * Nicotine Level at Unipod 11.92 (6) 0.06

* Pre vs. Post means that we subtracted the Pre measurement from the Post measurement. Negative values indicate a higher Pre measurement in comparison to the post measurement.