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Abnormal HV profiles in participants with PNES vs. controls
| Categorical variable | PNES group n | Control group n | Chi squared (χ 2) | p value |
|---|---|---|---|---|
| Skewed HV profile (skew in any of the three components below) | 26/60 | 4/50 | 19.77 | <.001 |
| Hypocapnia at baseline (PCO2 < 36 mmHg) | 21/60 | 3/50 | 13.45 | <.001 |
| Lowest PCO2 ≤ 20 mmHg | 16/60 | 2/50 | 10.24 | .001 |
| Failure of recovery to homeostasis, or final PCO2 <36 mmHg | 19/47 | 1/50 | 21.86 | <.001 |
