Table 1.
Characteristics of Propensity Score-Matched Stimulant Medication Users and Nonusers and Pre-Matched Nonusers
| Covariates | Matched Non- users (n=735) |
Stimulant Medication Users (n=245) |
Pre-Matched Non- users (n=19,499) |
|---|---|---|---|
| Age (years)a | 42.3 (10.4) | 42.2 (11.3) | 48.1 (9.22) |
| Education (years)a | 15.6 (2.48) | 15.6 (2.51) | 16.0 (2.45) |
| Sex (male), n (%) | 387 (52.7%) | 126 (51.4%) | 13,224 (67.8%) |
| Race/ethnicity, n (%) | |||
| Non-Hispanic white | 703 (95.6%) | 235 (95.9%) | 18,268 (93.7%) |
| Otherb | 32 (4.4%) | 10 (4.1%) | 1231 (6.3%) |
| BMIa | 27.0 (5.4) | 26.7 (5.2) | 26.5 (4.3) |
| Resting Systolic Blood Pressure (mmHg)a | 118.4 (14.6) | 117.5 (13.9) | 120.3 (14.1) |
| Resting Diastolic Blood Pressure (mmHg)a | 80.4 (10.7) | 79.4 (11.1) | 81.1 (9.81) |
| Resting Heart Rate (bpm)a | 67.5 (11.7) | 67.6 (11.7) | 62.0 (10.2) |
| Year of Examination, 1995–2013 (data not shown) | |||
| Self-Report of Alcohol use, n (%) | 599 (81.5%) | 197 (80.4%) | 16,004 (82.1%) |
| Self-Report of Smoking, n (%) | 148 (20.1%) | 44 (18.0%) | 2321 (11.9%) |
| Self-Report of Hypertension, n (%) | 59 (8.0%) | 17 (6.9%) | 1292 (6.6%) |
| Self-Report of Family History Heart Disease, n (%) | 142 (19.3%) | 47 (19.2%) | 5544 (28.4%) |
| Self-Report of Diabetes, n (%) | 12 (1.6%) | 4 (1.6%) | 224 (1.2%) |
| Self-Report of High Cholesterol, n (%) | 200 (27.2%) | 67 (27.4%) | 4845 (24.9%) |
| Self-Report of Lipid Lowering Medication, n (%) | 68 (9.3%) | 21 (8.6%) | 1869 (9.6%) |
| Physical Activity Index, n (%) | |||
| 0 | 108 (14.7%) | 35 (14.3%) | 2167 (11.1%) |
| 1 | 310 (42.2%) | 98 (40.0%) | 7266 (37.3%) |
| 2 | 227 (30.9%) | 73 (29.8%) | 6573 (33.7%) |
| 3 | 67 (9.1%) | 32 (13.1%) | 2533 (13.0%) |
| 4 | 23 (3.1%) | 7 (2.9%) | 960 (4.9%) |
| Self-Report of Physical Activity (MET-minutes per week)a | 1165.1 (1616.4) | 1164.6 (2057.2) | 1140.8 (1420.1) |
a
Mean (Standard Deviation)
b
The small percentage of participants who did not self-identify as non-Hispanic white were combined into one category entitled “Other”