Table 3.

Consumption of volatile anesthetic guided by BIS or Blood pressure by age.

Age (years old)	BIS (mL/h)	Standard practice (mL/h)	P
Sevoflurane
21–40	10.8 (8.8–13.6) (n = 152)	12.7 (10.2–16.0) (n = 741)	< 0.001
41–60	10.9 (8.9–13.5) (n = 483)	11.8 (9.4–14.9) (n = 1,491)	< 0.001
61–80	10.3 (8.4–12.6) (n = 616)	10.6 (8.5–13.5) (n = 1,429)	0.032
> 80	9.6 (7.7–11.9) (n = 73)	8.9 (7.4–11.2) (n = 158)	0.461
Desflurane
21–40	18.2 (14.3–22.2) (n = 70)	22.0 (17.4–27.7) (n = 299)	< 0.001
41–60	17.1 (13.5–21.1)(n = 147)	21.1 (16.6–25.5) (n = 447)	< 0.001
61–80	17.6 (14.0–21.0)(n = 148)	18.6 (15.0–23.1) (n = 403)	0.095
> 80	11.8 (10.2–16.0) (n = 13)	16.2 (12.2–19.6) (n = 43)	0.053

Data were expressed as median (25%-75% interquartile values).