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. 2021 Aug 19;161(2):407–417. doi: 10.1016/j.chest.2021.07.2177

Table 1.

ALTOS and ICAP Patient Cohorts

Characteristic ALTOS (n = 686) ICAP (n = 137)
Age, y 51 (41-59) 47 (40-57)
Female sex 356 (52) 63 (46)
Race
 White 555 (81) 80 (58)
 Black 99 (14) 54 (39)
 Other 14 (2) 2 (2)
 Missing 18 (3) 1 (1)
Years of educationa 13 (12-14) 12 (11-14)
Median income of zip code (USD) $47,300 ($37,900-$62,000) $46,230 ($39,724-$65,744)
Charlson Comorbidity Indexb 1 (0-1) 1 (0-3)
Functional Comorbidity Indexb 2 (1-3) 1 (1-2)
Past medical history of depressionb 67 (28)b 27 (20)
APACHE IIc 25 (20-32) 23 (18-28)
LOS, d
 Hospitald 17 (12-26) 23 (15-34)
 ICUe 10 (7-16) 14 (8-21)
Retrospective perception of health before ARDSf 80 (60-90) 75 (50-90)

Data are presented as No. (%) or median (interquartile range). Percentages do not total 100% because of rounding. ALTOS = ARDSNET Long Term Outcomes Study; APACHE = Acute Physiology and Chronic Health Evaluation; ICAP = Improving Care of Acute Lung Injury Patients study; LOS = length of stay; USD = US dollars.

a

Available for 307 ALTOS survivors and 130 ICAP survivors.

b

Available for all ICAP survivors and 236 ALTOS survivors from five of 11 study sites.

c

Missing for 20 ALTOS survivors.

d

Missing for five ALTOS survivors.

e

Missing for four ALTOS survivors.

f

Available for 109 ICAP survivors and 236 ALTOS survivors from five of 11 study sites.