Table 2:
Individual Prescription Stimulant Misuse (PSM) and PSM Motive Categories by Age Group, Among Those with Past-Year PSM
| 14 years | 15 years | 16 years | 17 years | 18 years | 19 years | 20 years | 21 years | 22 years | 23 years | 24/25 years | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sample Size | 70 | 149 | 263 | 368 | 253 | 421 | 506 | 547 | 546 | 509 | 790 |
| % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | |
| Individual Motives | |||||||||||
| To Lose Weight | 12.2 (5.1–26.3) | 3.6 (1.6–8.2) | 10.2 (5.2–19.2) | 3.3 (1.7–6.3) | 8.1 (5.3–12.3) | 5.1 (3.1–8.1) | 4.6 (2.8–7.5) | 5.9 (3.8–8.9) | 8.1 (5.6–11.6) | 5.9 (3.8–9.1) | 5.9 (4.1–8.5) |
| To Concentrate | 59.8 (46.0–72.2) | 41.6 (31.3–52.5) | 56.6 (48.0–64.9) | 59.8 (52.9–66.3) | 58.7 (51.9–65.1) | 61.3 (55.4–67.0) | 61.1 (56.4–65.6) | 61.2 (56.1–66.7) | 58.1 (52.5–63.5) | 55.7 (51.1–60.3) | 56.2 (51.7–60.5) |
| To Be Alert | 33.6 (20.6–49.8) | 36.5 (27.0–47.1) | 30.9 (23.9–39.0) | 43.0 (37.5–48.6) | 40.7 (34.4–47.4) | 39.8 (34.4–45.4) | 41.4 (35.5–47.6) | 46.1 (41.2–51.1) | 46.1 (41.1–51.2) | 53.4 (48.4–58.4) | 53.7 (48.4–58.9) |
| To Study | 38.0 (25.7–52.1) | 38.7 (28.3–50.3) | 39.7 (32.5–47.4) | 40.9 (34.7–47.3) | 47.4 (39.4–55.5) | 56.1 (50.1–62.0) | 53.4 (49.2–57.7) | 57.8 (53.0–62.4) | 52.0 (46.0–57.9) | 49.3 (44.5–54.1) | 38.4 (33.9–43.1) |
| To Experiment | 19.8 (10.7–33.8) | 26.7 (19.3–35.8) | 27.1 (20.3–35.3) | 17.9 (13.5–23.4) | 13.3 (9.3–18.5) | 9.7 (6.5–14.2) | 13.1 (9.7–17.5) | 9.3 (6.7–12.8) | 9.7 (6.8–13.5) | 7.5 (5.5–10.3) | 9.4 (7.3–11.9) |
| To Get High | 27.6 (18.0–39.9) | 33.8 (23.5–45.9) | 23.9 (18.0–30.9) | 22.6 (17.6–28.7) | 15.8 (11.3–21.5) | 13.8 (9.9–18.9) | 12.4 (9.5–16.1) | 13.7 (10.8–17.1) | 10.9 (8.1–14.5) | 14.0 (10.6–18.2) | 14.1 (11.2–17.7) |
| To Alter Other Drug Effects | 2.0 (0.3–11.1) | 3.4 (1.2–9.6) | 3.1 (1.5–6.5) | 3.2 (1.5–6.6) | 1.7 (0.7–3.9) | 3.5 (1.7–6.9) | 3.1 (1.8–5.4) | 3.2 (1.7–5.9) | 3.2 (2.0–5.3) | 3.7 (2.3–6.1) | 3.9 (2.6–6.0) |
| “Because I’m Hooked” | 0.1 (0.01–0.5) | 1.9 (0.6–6.0) | 1.0 (0.2–3.7) | 0.3 (0.1–1.1) | 1.6 (0.6–4.5) | 0.2 (0.03–1.7) | 1.2 (0.5–2.8) | 0.2 (0.04–0.9) | 0.8 (0.2–2.4) | 1.5 (0.5–4.4) | 1.6 (0.8–3.2) |
| Other Reason | 10.3 (4.9–20.4) | 9.6 (4.8–18.3) | 3.5 (1.8–6.9) | 7.0 (4.6–10.6) | 1.3 (0.5–3.2) | 3.7 (1.9–7.4) | 2.7 (1.5–4.8) | 2.4 (1.2–4.9) | 0.9 (0.4–2.0) | 2.9 (1.4–6.0) | 3.5 (2.2–5.4) |
| Motive Categoriesa | |||||||||||
| Weight Loss Only | 1.5 (0.3–7.1) | 1.8 (0.4–8.1) | 1.3 (0.3–4.7) | 0.4 (0.1–1.6) | 1.3 (0.5–3.4) | 1.0 (0.3–3.5) | 1.9 (0.8–4.7) | 1.4 (0.6–3.2) | 1.4 (0.5–3.7) | 0.5 (0.1–1.9) | 1.0 (0.5–2.0) |
| Cognitive Enhancement | 40.4 (27.2–55.1) | 47.5 (38.1–57.0) | 53.1 (45.6–60.5) | 62.0 (55.7–67.9) | 67.6 (60.9–73.7) | 73.4 (66.8–79.1) | 70.9 (65.3–76.0) | 74.7 (69.8–79.1) | 71.9 (67.1–76.3) | 74.7 (70.1–78.8) | 71.2 (66.6–75.3) |
| Recreational | 25.8 (15.9–39.1) | 27.5 (20.0–36.7) | 22.5 (16.4–30.0) | 14.6 (11.0–19.1) | 12.6 (8.9–17.5) | 8.5 (5.8–12.4) | 8.5 (6.2–11.6) | 5.7 (3.5–9.0) | 8.6 (6.1–12.1) | 8.5 (6.3–11.6) | 9.8 (7.7–12.4) |
| Combined | 32.3 (20.1–47.4) | 23.2 (15.4–33.5) | 23.2 (16.4–31.7) | 23.0 (17.9–29.2) | 18.5 (14.1–23.8) | 17.1 (12.4–23.2) | 18.6 (14.9–23.0) | 18.2 (14.1–23.2) | 18.1 (14.3–22.7) | 16.3 (13.1–20.1) | 18.0 (14.6–22.0) |
Data: 2015–18 NSDUH
a
Cognitive Enhancement Only is composed of To Concentrate, To Be Alert and To Study; Recreational is To Experiment, To Get High, To Alter Other Drug Effects and “Because I’m Hooked”.