Table 1. Characteristics of Urine Specimens Tested for Cocaine, Methamphetamine, and Nonprescribed Fentanyl, January 1, 2013, to September 30, 2018 .
| Characteristic | Specimens Tested, No. (%) |
|---|---|
| Total specimens, No. | 1 000 000 |
| Total patients, No. | 1 000 000 |
| Age, median (IQR), y | 44 (19-69) |
| Men | 447 777 (44.8) |
| Women | 550 361 (55.0) |
| Positive result | |
| Cocaine | 39 576 (4.0) |
| Methamphetamine | 30 578 (3.1) |
| Fentanyl | 13 770 (1.4) |
| Specialty of the referring health care practice | |
| Substance use disorder treatment center | 199 850 (20.0) |
| Pain management | 335 368 (33.5) |
| Primary care physician | 237 415 (23.7) |
| Behavioral health | 106 564 (10.7) |
| Obstetrics and gynecology | 57 071 (5.7) |
| Multispecialty or other | 63 732 (6.4) |
Abbreviation: IQR, interquartile range.