Table 2.
Lasso Algorithm Model Coefficients for Likely PTSD, Possible PTSD, and Likely Not PTSD
| Variable | Likely PTSD B |
Likely PTSD β |
Possible PTSD B |
Likely not PTSD B |
|---|---|---|---|---|
| Intercept | −0.96 | −0.39 | 1.35 | |
| Service connected for PTSD (no/yes) | 2.20 | 1.00 | 0.19 | −2.38 |
| 2 + outpt. PTSD ICD codes (no/yes)a | 1.94 | .95 | 0.24 | −2.18 |
| PC-PTSD (NA/score 0–2/score 3–4) | 0.33 | .22 | 0.10 | −0.43 |
| PTSD dx by PCP (ICD code count) | 0.07 | .22 | 0.06 | −0.13 |
| PTSD dx by MHP (ICD code count) | 0.01 | .21 | −0.00 | −0.00 |
| 1 + inpt. PTSD ICD codes (no/yes) | 0.55 | .17 | −0.75 | 0.19 |
| Comorbid depression (no/yes) | 0.33 | .16 | 0.17 | −0.51 |
| Ethnicity (NA/Hispanic/not Hispanic) | −0.26 | .15 | 0.10 | 0.16 |
| Age (continuous) | −0.01 | .11 | −0.00 | 0.01 |
| PCL score available in CDW (no/yes) | 0.03 | .01 | 0.60 | −0.64 |
| Sex (male/female) | −0.00 | .00 | −0.00 | 0.01 |
Note. PTSD = posttraumatic stress disorder; outpt. = outpatient; ICD = International Classification of Diseases; PC-PTSD = Primary Care PTSD Screen; NA = not available/missing; dx = diagnosis; PCP = Primary Care Physician; MHP = mental health professional; inpt. = inpatient; PCL = DSM-IV PTSD Checklist.
a
2 or more outpatient ICD codes for PTSD within 1 year by mental health professional.