Table 3.

Opioid Use in Different Chronic Pain Conditions.

Conditions	Daily Opioid Use (OME, mg)	N	Country or region	References
Sickle cell disease (SCD)	Median (IQR): 6.1 (1.7-26.3)	203	US	This study
Chronic non-cancer pain (CNCP)	Mean (SD): 58 (79)	11,989	Germany	(24)
	Median (IQR): 75 (36-145)	1417	Australia	(19)
	Median (IQR): 180 (60-501)	145	Canada	(22)
	Median (Range): 20.3 (5-72.1)	60	US	(21)
	Mean (SD): 118 (149)	466	US	(23)
Cancer pain	Median: 45	91	US	(25)
	Median (IQR): 120 (45-270)	198	US	(26)
	Mean (SD): 167 (170)	123	Egypt	(28)
	Median (Range): 30 (20-60)	371	Portugal	(29)

A systematic literature search on all articles published from January 2012 to October 2015 was performed in November 2015 using Pubmed. The keyword “morphine equivalent” was used.

^*The result was derived from the total consumption of opioids.