Table 1.

Prevalence of opioid analgesic use among SCD patients by age groups.

Age (years)	0–9		10–19		20–29		30–39		40–49		50+		Total
	n	(%)	n	(%)	n	(%)	N	(%)	n	(%)	n	(%)	n	(%)
Non-user	974	91.5%	568	53.7%	198	41.7%	201	42.6%	194	45.3%	197	51.3%	2332	60.1%
Any opioid	91	8.5%	490	46.3%	277	58.3%	271	57.4%	234	54.7%	187	48.7%	1550	39.9%
IR only	83	7.8%	413	39.0%	214	45.1%	202	42.8%	176	41.1%	145	37.8%	1233	31.8%
ER only	3	0.3%	3	0.3%	3	0.6%	1	0.2%	3	0.7%	3	0.8%	16	0.4%
Both IR and ER	5	0.5%	74	7.0%	60	12.6%	68	14.4%	55	12.9%	39	10.2%	301	7.8%

IR: immediate-release opioid; ER: extended-release opioid