From: Assessment of the breath alcohol concentration in emergency care patients with different level of consciousness
N
Mean bias between the BAC and the BrAC est
Standard deviation
P-value
Forced expiration
10
−0.15
0.39
Non-forced expiration
57
0.05
0.32
0.09
Awake
63
−0.03
0.34
Sleeping or lowered level of consciousness
15
0.20
0.37
0.02