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Table 3 Outcome measures in ARDS survivors from two multicenter cohort studies

From: Screening for posttraumatic stress disorder in ARDS survivors: validation of the Impact of Event Scale-6 (IES-6)

Outcome measureALTOSa
n = 815
ICAPb
n = 186
IES-Rd at follow-up mean (SD)c
 3 monthsn/a1.1 (0.9)
 6 months1.0 (0.9)0.9 (0.8)
 12 months1.0 (0.9)0.9 (0.9)
 24 monthsn/a0.9 (0.9)
 36 monthsn/a0.8 (0.8)
 48 monthsn/a0.7 (0.9)
 60 monthsn/a0.7 (0.9)
 Across all time points1 (0.9)0.9 (0.9)
IES-6e at follow-up mean (SD)
 3 monthsn/a1.1 (0.9)
 6 months1.1 (1.0)0.9 (0.9)
 12 months1.0 (1.1)0.9 (0.9)
 24 monthsn/a0.9 (0.9)
 36 monthsn/a0.8 (0.9)
 48 monthsn/a0.7 (0.9)
 60 monthsn/a0.7 (0.9)
 Across all time points1.1 (1.0)0.8 (0.9)
External construct validity (related) mean (SD)f
 SF-36g Mental Health Domain44.5 (14.3)47.1 (13.1)
 SF-36g Mental Component Summary45.3 (14.86)47.2 (13.2)
 HADSh Anxiety7.0 (5.1)5.9 (4.7)
 HADSh Depression6.0 (4.9)5.1 (4.3)
 EQ-5D-3L Anxiety/Depression Item1.7 (0.7)1.6 (0.6)
External construct validity (unrelated) mean (SD)
 SF-36g Role Physical Subscale38.5 (13.0)39.6 (12.8)
 SF-36g Physical Function Subscale37.0 (13.4)38.3 (13.0)
 EQ-5D-3L Mobility Item1.6 (0.5)0.6 (0.5)
 EQ-5D-3L Self-Care Item1.3 (0.5)0.2 (0.5)
 FPIi Body Care domain2.6 (0.6)n/a
 FPIi Maintain Household1.9 (0.9)n/a
 FPIi Physical Exercise1.6 (0.9)n/a
Healthcare utilization, % of patients utilizing
 Oxygen therapy18.414.9
 X-ray53.152.3
 MRIj21.628.9
 CTk27.734.0
  1. aALTOS Acute Respiratory Distress Syndrome (ARDS) Network Long-term Outcomes Study (evaluated patients at 6- and 12-month time points); bICAP Improving Care of Acute Lung Injury (ALI) Patients; cMean (standard deviation); dIES-R Impact of Event Scale—Revised. eIES-6 Impact of Events Scale-6. fConstruct validity measures include mean values (SD) from visits at all available follow-up time points. gSF-36 Short Form Healthy Survey-36 Version 2. hHADS Hospital Anxiety and Depression Scale; iFPI Functional Performance Inventory collected for ALTOS only; jMRI magnetic resonance imaging; kCT computed tomography