Table 4

Association of anxiety features with subsequent mechanical ventilation in adjusted logistic regression models

OR (95% CI)
VariableSTAI-Y113GBS questionnaireAnxiety-VASDyspnoea-VASMost stressful
Arm grade*>27.56 (2.28 to 25.1)6.72 (2.02 to 22.4)8.05 (2.44 to 26.6)7.73 (2.32 to 25.8)7.53 (2.21 to 25.6)
GBS onset to admission (as log)0.33 (0.14 to 0.79)0.40 (0.18 to 0.89)0.44 (0.20 to 0.98)0.47 (0.21 to 1.05)0.39 (0.16 to 0.92)
STAI-Y12.82 (0.85 to 9.39)
GBS questionnaire total score5.15 (1.06 to 24.9)
Anxiety-VAS score1.08 (0.44 to 2.64)
Dyspnoea-VAS score1.28 (0.46 to 3.57)
Uncertainty as most frightening4.05 (1.26 to 13.0)
  • *Arm grade: 0, normal; 1, minor symptoms or signs but able to put hand on top of head when sitting with head upright and able to oppose the thumb to each fingertip; 2, able to do either of the tasks in 1 but not both; 3, some movements but unable to perform either of the tasks in 2; 4, no movement and 5, dead.15

  • GBS, Guillain-BarrĂ© syndrome; STAI-Y1, State Trait Anxiety Inventory-Y1; VAS, visual analogical scale.