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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Am J Prev Med. 2019 Mar 6;56(5):639–647. doi: 10.1016/j.amepre.2018.12.009

Table 1.

ED Visits Due to Nonmedical Use of Pharmaceuticals, 2016a

Case characteristics Nonmedical use of pharmaceuticalsb Therapeutic use of pharmaceuticalsc
Cases Annual national estimate Cases Annual national estimate
n n % (95% CI) n n % (95% CI)
Age, yearsd
 <15 159 7,333 2.0 (1.1, 3.0) 2,754 109,960 7.5 (5.6, 9.3)
 5–24 1,208 81,928 22.9 (19.5, 26.2) 1,614 109,099 7.4 (6.0, 8.8)
 25–34 1,305 93,179 26.0 (23.2, 28.8) 1,765 131,658 8.9 (7.6, 10.2)
 35–44 852 61,437 17.1 (15.3, 19.0) 1,720 129,988 8.8 (7.7, 9.9)
 45–54 790 54,905 15.3 (13.1, 17.5) 2,500 178,225 12.1 (10.6, 13.5)
 55–64 587 42,161 11.8 (10.0, 13.6) 3,119 226,195 15.3 (14.4, 16.2)
 65–74 186 13,455 3.8 (2.9, 4.6) 3,287 252,805 17.1 (14.7, 19.6)
 >74 43 3,848e 1.1 (0.4, 1.7) 4,458 336,626 22.8 (19.1, 26.6)
Sex
 Female 2,195 158,673 44.3 (41.9, 46.7) 11,751 821,106 55.7 (53.1, 58.3)
 Male 2,935 199,574 55.7 (53.3, 58.1) 9,466 653,450 44.3 (41.7, 46.9)
Discharge dispositionf
 Hospitalized 2,085 147,091 41.1 (32.3, 49.8) 6,480 401,231 27.2 (21.6, 32.8)
 Not hospitalized 3,045 211,156 58.9 (50.2, 67.7) 14,737 1,073,325 72.8 (67.2, 78.4)
Number of implicated pharmaceuticals
 1 3,689 258,343 72.1 (69.2, 75.0) 18,136 1,274,211 86.4 (84.7, 88.2)
 2 1,033 68,784 19.2 (16.7, 21.7) 2,380 158,326 10.7 (9.1, 12.3)
 3 296 22,215 6.2 (5.3, 7.1) 469 29,528 2.0 (1.7, 2.3)
 4 or more 112 8,905 2.5 (1.8, 3.1) 232 12,491 0.8 (0.6, 1.1)
Additional substances documented
 Any substance 2,736 189,465 52.9 (49.7, 56.1) 350 23,174 1.6 (1.1, 2.0)
 Alcohol 1,143 78,227 21.8 (19.8, 23.9) 235 15,280 1.0 (0.7, 1.3)
 Illicit substances 1,784 122,033 34.1 (30.9, 37.2) 133 8,896 0.6 (0.4, 0.8)
 Marijuana 882 63,306 17.7 (15.1, 20.3) 83 6,463 0.4 (0.3, 0.6)
 Cocaine 632 37,451 10.5 (7.8, 13.1) 47 2,174 0.1 (0.1, 0.2)
 Heroin 413 28,285 7.9 (5.5, 10.3) 7 ~ ~
 Methamphetamines 215 17,955 5.0 (2.9, 7.2) 8 ~ ~
 Other illicit substancesg 208 11,119 3.1 (2.1, 4.1) 5 ~ ~
 Unspecified drugsh 513 38,083 10.6 (8.5, 12.7) 0 ~ ~
 No additional substances 2,394 168,782 47.1 (43.9, 50.3) 20,867 1,451,382 98.4 (98.0, 98.9)
Total 5,130 358,247 100 (N/A) 21,217 1,474,556 100 (N/A)
a

Case counts and estimates are from the National Electronic Injury Surveillance System–Cooperative Adverse Drug Event Surveillance project, CDC. Estimates based on <20 cases or total estimates <1,200 are considered statistically unstable and are not shown (~). Includes prescription and over-the-counter medications, dietary supplements, homeopathic products, and vaccines.

b

Includes pharmaceutical abuse, therapeutic misuse, and overdoses without indication of intent.

c

Includes therapeutic adverse drug events (e.g., adverse effects, allergic reactions, medication errors).

d

Missing for 5 cases of nonmedical use, and 1 case of therapeutic use.

e

Coefficient of variation >30%.

f

Hospitalized includes inpatient admissions, observation admissions, and transfers to other hospitals. Not hospitalized includes treated-and-released and left against medical advice/without being seen.

g

Includes illicit fentanyl, LSD, MDMA, phencyclidine, and other illicit drugs.

h

Includes unspecified opioids and unspecified amphetamines. For these visits, there was not enough information to determine if the opioid was a prescription product or illicit substance (e.g., heroin) or if the amphetamine was a prescription amphetamine or illicit methamphetamine.

ED, emergency department; N/A, not applicable.