Table 3.
Univariate logistic regression for false negative and false positive classification by Narcotic Scoresa (N=1,464)
| False Positive | False Negative | |||
|---|---|---|---|---|
| Variable | OR (95% CI) | p | OR (95% CI) | p |
| Age | 1.03 (1.02, 1.04) | <0.01 | 0.98 (0.98, 0.99) | <0.01 |
| Marital status | ||||
| Married | 1 (ref) | 1 (ref) | ||
| Divorced | 1.28 (0.88, 1.87) | 0.19 | 1.01 (0.67, 1.50) | 0.97 |
| Widowed | 2.65 (1.56, 4.52) | <0.01 | 0.25 (0.08, 0.80) | 0.02 |
| Separated | 1.28 (0.63, 2.63) | 0.49 | 1.00 (0.46, 2.18) | 0.99 |
| Never married | 0.80 (0.51, 1.26) | 0.34 | 1.23 (0.82, 1.83) | 0.32 |
| Member unmarried couple | 0.83 (0.41, 1.65) | 0.59 | 0.94 (0.48, 1.83) | 0.85 |
| White race | 0.82 (0.48, 1.41) | 0.48 | 0.60 (0.36, 0.99) | 0.05 |
| Non-Hispanic | 1.14 (0.24, 5.31) | 0.87 | .b | . |
| Employment | ||||
| Full-time | 1 (ref) | 1 (ref) | ||
| Part-time | 1.15 (0.52, 2.53) | 0.73 | 1.36 (0.75, 2.47) | 0.31 |
| Temp leave | 2.04 (1.02, 4.06) | 0.04 | 1.53 (0.84, 2.80) | 0.17 |
| Looking for work | 1.57 (0.63, 3.90) | 0.33 | 2.18 (1.10, 4.32) | 0.03 |
| Retired | 3.40 (2.20, 5.26) | <0.01 | 0.67 (0.41, 1.09) | 0.11 |
| Disabled | 3.12 (2.10, 4.63) | <0.01 | 0.58 (0.37, 0.89) | 0.01 |
| Keeping house | 2.35 (1.17, 4.72) | 0.02 | 1.79 (0.97, 3.30) | 0.06 |
| Student | 0.68 (0.09, 5.26) | 0.71 | 0.36 (0.05, 2.74) | 0.32 |
| Other | 3.08 (1.55, 6.15) | <0.01 | 0.41 (0.15, 1.17) | 0.10 |
| Multiple reported | 2.50 (1.27, 4.93) | 0.01 | 0.96 (0.47, 1.95) | 0.90 |
| Insured | 0.93 (0.49, 1.75) | 0.81 | 0.55 (0.31, 0.99) | 0.05 |
| Overdose history | 0.81 (0.65, 1.01) | 0.06 | 1.24 (1.09, 1.41) | <0.01 |
| Poor general health | 0.66 (0.56, 0.76) | <0.01 | 1.09 (0.94, 1.26) | 0.27 |
| Depression | 0.99 (0.91, 1.07) | 0.77 | 1.04 (0.96, 1.13) | 0.28 |
| Pain severity | 1.12 (1.05, 1.19) | <0.01 | 0.99 (0.93, 1.05) | 0.71 |
| Pain interference | 1.09 (1.04, 1.15) | <0.01 | 0.99 (0.94, 1.04) | 0.71 |
| ASSISTc Illicit/prescription drug use | ||||
| Prescription opioids | . | . | 12.66 (8.41, 19.07) | <0.01 |
| Street opioids | 0.32 (0.05, 1.93) | 0.21 | 3.15 (1.60, 6.20) | <0.01 |
| Cannabis | 0.47 (0.27, 0.79) | 0.01 | 1.81 (1.26, 2.61) | <0.01 |
| Sedatives | 0.37 (0.23, 0.60) | <0.01 | 1.87 (1.36, 2.57) | <0.01 |
| Cocaine | 1.16 (0.49, 2.77) | 0.74 | 3.32 (1.62, 6.80) | <0.01 |
| Tobacco | 1.17 (0.91, 1.50) | 0.21 | 1.11 (0.86, 1.44) | 0.42 |
| Alcohol | 0.58 (0.35, .95) | 0.03 | 2.03 (1.46, 2.83) | <0.01 |
| Methamphetamine | 0.27 (0.04, 1.84) | 0.18 | 5.92 (2.63, 13.31) | <0.01 |
| Hallucinogens | . | . | 11.67 (2.89, 47.0) | <0.01 |
| Prescription stimulants | 0.16 (0.04, 0.67) | 0.01 | 3.17(1.83, 5.48) | <0.01 |
| Inhalants | . | . | . | . |
a
False negative =low Narcotic Scores and moderate/high ASSIST scores. False positive=moderate/high Narcotic Scores and low ASSIST scores.
b
“.” represents associations that could not be estimated due to limited sample size or indicators that perfectly predicted the outcome.
c
Alcohol, Smoking, and Substance Involvement Screening Test.