Table 1 Outcomes measured to establish PICS criteria.

From: Prevalence of post-intensive care syndrome in mechanically ventilated patients with COVID-19

Scale/assessment tool used

PICS domain

Cut-off

Spirometry

Physical/pulmonary

Impairment in spirometry pattern according to ATS/ERS statements30,31

Dynamometry

Physical/neuromuscular

 < 85% of healthy volunteers according to Luna et al.29

Barthel score

Physical/dependence

Score < 9532

HADS-A

Psychiatric

Score ≥8 25

HADS-D

Psychiatric

Score≥825

PTSD symptom severity scale

Psychiatric

One symptom, three symptoms and two symptoms in sections A (re-experiencing), B (avoidance) and C respectively (increased activation)26

MoCA test

Cognitive

Score: 18–25 Mild cognitive impairment2

Score: 10–17: Moderate cognitive impairment2

Score < 10: Severe cognitive impairment2

  1. PICS post-intensive care syndrome, HADS-A Hospital Anxiety and Depression Scale-Anxiety, HADS-D Hospital Anxiety and Depression Scale-Depression, PTSD Post-traumatic stress disorder, MoCA Montreal cognitive assessment.
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