2.

不同剂型阿片类药物用量占比

Percentage of diferent opioids dosage form

Dosage form	n	Total quantity (mg)	%
Each drug was converted to the same dose intensity of morphine tablet according to the opioid dose-conversion coefficient table[2], morphine (oral):tramadol (oral)=1:5; morphine (oral):oxycodone (oral)=(1.5-2.0):1; morphine (parenteral):morphine (oral)=1:3; morphine (oral):codeine (oral)=1:6.5; Fentanyl transdermal patch (μg/h), q72h=1/2×oral morphine (mg), qd. Total dosage is the cumulative value of the converted dose intensity.
Sustained release tablet	5	448, 280	84.7
Tablet	2	7, 701	1.5
Patch	2	66, 870	12.6
Injection	1	6, 411	1.2
Total	10	529, 262	100.0