Table 1. Participant demographics at T1, T2 and T3.

Timepoint	T1 N = 309	T2 N = 195	T3 N = 191	p-value
Age
Mean (SD)	39.8 (9.67)	41.0 (10.1)	41.4 (9.93)	0.165
Median [Min, Max]	39.0 [23.0, 63.0]	41.0 [23.0, 63.0]	41.0 [23.0, 63.0]
Sex
Female	227 (73.5%)	149 (76.4%)	144 (75.4%)	0.742
Male	82 (26.5%)	46 (23.6%)	47 (24.6%)
Role
Allied Health	35 (11.3%)	24 (12.3%)	25 (13.1%)	0.941
Physician	82 (26.5%)	52 (26.7%)	55 (28.8%)
Registered nurse	148 (47.9%)	97 (49.7%)	87 (45.5%)
Respiratory therapist	44 (14.2%)	22 (11.3%)	24 (12.6%)
Years of Experience
Mean (SD)	13.8 (9.38)	15.3 (9.73)	15.4 (9.70)	0.115
Median [Min, Max]	12.0 [1.00, 43.0]	13.0 [1.00, 40.0]	14.0 [1.00, 40.0]