Table 1:

Patient Demographics (N=210)

Category	Distribution
Site	BUMC = 95 patients UCH = 75 patients Stanford* = 20 patients Yale* = 20 patients
Patient Age: median [IQR]	57 [47-66] years
Gender (% male)	N=129 (61%)
Race	Caucasian = 115 (55%) African American = 54 (25%) Other = 41 (20%)
Primary service: N (%)	Medical ICU: 146 (70%) Cardiac ICU: 43 (20%) Surgical ICU: 20 (9%) Burn ICU: 1 (1%)
Co-morbidity	C0PD = 56 (27%) Diabetes = 52 (25%) Congestive heart failure = 45 (21%) Myocardial infarction = 35 (17%) Liver disease = 21 (10%) Peripheral vascular disease = 19 (9%) Cerebral vascular disease = 17 (8%) Dementia = 7 (3%) Rheumatological disorder = 5 (2%) Peptic ulcer disease = 5 (2%)
Time from admission to intubation: median hours [IQR]	8 [0-48] hours
Length of intubation: median hours [IQR]	133 [73-206] hours
Endotracheal tube size: N (%)	8.5mm: 2 (1%) 8.0mm: 100 (48%) 7.5mm: 74 (35%) 7.0mm: 28 (13%) 6.5mm: 4 (2%) 6.0mm: 2 (1%)
Time from extubation to FEES exam: median hours [IQR]	26 [22-47] hours
More than one intubation prior to enrollment: N (%)	38 (18.1%)
Charlson Comorbidity Index (CCI): Median score [IQR]	3 [2-5]
APACHE II score [IQR]	19 [14-26]
Body Mass Index: median [IQR]	27.8 [23.7-34.3]

BUMC = Boston University Medical Campus; UCH = University of Colorado Health; IQR = interquartile range; ICU = Intensive Care Unit; FEES = Fiberoptic Endoscopic Evaluation of Swallowing;

^*Stanford and Yale were added in the final year of the study to boost total enrollment numbers so their enrollment numbers do not represent insufficient screening or enrollment efforts.