TABLE 1.
Comparison of the reductions in dyspnoea ratings by visual distraction and medical hypnosis at the fifth minute of the dyspnoea challenges, showing agreement between the nonparametric and the mixed-model statistical approaches
| Visual distraction | Medical hypnosis | p-value visual distraction minus hypnosis |
||
|---|---|---|---|---|
| Nonparametric model | Linear mixed model | |||
| Sensory VAS | ||||
| ITL | −0.08 (−1.12– −0.26) | −3.40 (−4.84– −0.85) | 0.0042 | 5.6×10−7 |
| CO2-rv | −0.30 (−1.45– −0.74) | −3.69 (−5.14– −1.74) | 0.0015 | 1.6×10−11 |
| Affective VAS | ||||
| ITL | −0.24 (−0.72– −0.32) | −1.76 (−3.30– −0.08) | 0.044 | 5×10−7 |
| CO2-rv | −0.87 (−2.03– −0.18) | −2.91 (−4.46– −2.37) | 0.0023 | 1.6×10−10 |
VAS: visual analogue scale; ITL: inspiratory threshold loading; CO2-rv: carbon dioxide stimulation with restricted ventilation.