TABLE 1—
Characteristics of Delivering Women With Amphetamine and Opioid Use: National Inpatient Sample, United States, 2014–2015
| Characteristic | Amphetamine Use (n = 18 050) | Opioid Use (n = 50 011) | Other Hospital Deliveries (n = 7 545 380) |
| Age, y, weighted mean (95% CI) | 27.9 (27.7, 28.1) | 27.8 (27.7, 27.9) | 28.4 (28.3, 28.5) |
| Insurance payer, weighted % (95% CI) | |||
| Medicaid | 80.4 (78.7, 82.0) | 81.4 (80.2, 82.4) | 43.3 (42.5, 44.1) |
| Private | 10.8 (9.5, 12.3) | 14.7 (13.8, 15.6) | 51.3 (50.5, 52.2) |
| Uninsured | 8.8 (7.8, 9.9) | 4.0 (3.4, 4.7) | 5.4 (5.2, 5.7) |
| Income: bottom quartile,a weighted % (95% CI) | 39.3 (36.8, 41.8) | 37.1 (35.4, 38.9) | 28.3 (27.5, 29.2) |
| Residence: rural, weighted % (95% CI) | 21.5 (19.7, 23.5) | 21.7 (20.1, 23.4) | 13.3 (12.7, 13.9) |
| Hospital region, weighted % (95% CI) | |||
| Northeast | 1.2 (0.91, 1.5) | 24.1 (21.7, 26.7) | 16.0 (14.9, 17.2) |
| Midwest | 15.0 (13.3, 16.9) | 22.0 (19.7, 24.5) | 21.3 (20.1, 22.5) |
| South | 22.0 (20.1, 24.0) | 37.8 (35.0, 40.7) | 38.7 (37.1, 40.3) |
| West | 61.9 (59.2, 64.5) | 16.0 (14.2, 18.0) | 24.1 (22.8, 25.4) |
| Race/ethnicity, weighted % (95% CI) | |||
| Non-Hispanic White | 56.4 (54.1, 58.7) | 79.3 (77.3, 81.1) | 49.7 (48.8, 50.7) |
| Non-Hispanic Black | 6.0 (5.1, 6.9) | 5.0 (4.5, 5.7) | 13.7 (13.1, 14.2) |
| Hispanic | 20.1 (18.2, 22.1) | 6.2 (5.3, 7.3) | 19.5 (18.6, 20.3) |
| Asian or Pacific Islander | 2.3 (1.7, 3.2) | 0.51 (0.31, 0.86) | 5.5 (5.1, 5.9) |
| Native American | 4.3 (3.4, 5.4) | 1.4 (1.1, 1.8) | 0.66 (0.60, 0.73) |
| Other | 2.3 (1.7, 3.0) | 1.6 (1.3, 2.0) | 4.4 (4.1, 4.6) |
| Missing | 8.7 (7.2, 10.5) | 6.0 (4.6, 7.9) | 6.7 (6.0, 7.4) |
| No. of chronic conditions, weighted mean (95% CI) | 2.1 (2.1, 2.2) | 2.2 (2.1, 2.2) | 0.64 (0.62, 0.65) |
| Attention-deficit hyperactivity disorder, weighted % (95% CI) | 1.3 (0.95, 1.8) | 1.9 (1.6, 2.2) | 0.29 (0.28, 0.31) |
| Other substance use, weighted % (95% CI) | |||
| Tobacco | 46.0 (43.9, 48.0) | 55.2 (53.8, 56.5) | 5.1 (5.0, 5.3) |
| Cannabis | 26.4 (24.8, 28.1) | 10.4 (9.6, 11.1) | 0.87 (0.83, 0.91) |
| Opioids | 12.6 (11.4, 13.9) | NA | NA |
| Amphetamines | NA | 4.5 (4.1, 5.0) | NA |
| Cocaine | 4.2 (3.5, 5.1) | 5.2 (4.7, 5.8) | 0.11 (0.10, 0.12) |
| Alcohol | 5.1 (4.3, 5.9) | 1.9 (1.6, 2.2) | 0.10 (0.095, 0.11) |
| Sedatives | 2.1 (1.6, 2.7) | 2.4 (2.1, 2.7) | 0.017 (0.015, 0.019) |
Note. CI = confidence interval; NA = not applicable. The sample size was n = 7 611 192.
a
Represents patients living in a zip code with a median household income in the bottom national income quartile.