. Author manuscript; available in PMC: 2009 Mar 9.

Published in final edited form as: Eur J Anaesthesiol. 2008 Jan 9;25(5):352–356. doi: 10.1017/S0265021507003080

Table 3.

Comparison of morphine titration characteristics

	Elderly patients (n = 68)	Young patients (n = 350)	P Value
Initial NRS	7.5 ± 1.7	7.4 ± 1.6	NS
Number of morphine boluses	3.0± 1.5	3.0± 1.3	NS
Titration failure	6 (9)	35 (10)	NS
Excessive sedation	14 (21)	64 (18)	NS
Titration failure or excessive sedation	20 (29)	99 (28)	NS

Data are means ± SD or number (percentages).

NRS = Numerical rating scale; Titration failure was defined as an unchanged NRS after five boluses; Excessive sedation = SS > 1.