Table 1. Premedication rates and number of births in 2011 in the 10 centers that performed at least one premedication.

Maternity units	Premedication rate (n premed/n intubations)	Number of births in 2011
A	75.0% (15/20)	4125
B	62.5% (20/32)	3426
C	25.9% (15/58)	5039
D	23.9% (16/67)	2989
E	16.7% (1/6)	1633
F	9.1% (2/22)	2805
G	9.1% (2/22)	3131
H	7.7% (3/39)	2346
I	2.2% (1/46)	4824
J	2.1% (1/48)	2725
Total	21.1% (76/360)