Table 1
Performance of Predictors on Inpatient and ED Encounters (95% CI)
| Inpatient | Emergency | |||
| Predictor | Sensitivity | PPV | Sensitivity | PPV |
| 1 PCP named by patient in admission record | 20% | 26% | 19% | 22% |
| (19%–21%) | (25%–27%) | (19%–20%) | (21%–23%) | |
| 2 Last provider who had a scheduled appointment with the patient | 28% | 48% | 24% | 35% |
| (27%–29%) | (47%–49%) | (24%–25%) | (34%–36%) | |
| 3 Provider(s) who had the most scheduled appointments with the patient in the previous 180 days | 31% | 38% | 28% | 25% |
| (31%–32%) | (37%–39%) | (28%–29%) | (25%–26%) | |
| 4 All providers who had scheduled appointments with the patient in previous 180 days | 48% | 34% | 42% | 27% |
| (47%–49%) | (33%–35%) | (41%–43%) | (26%–27%) | |
| 5 Last provider to order medication for the patient | 15% | 39% | 14% | 32% |
| (14%–15%) | (38%–41%) | (13%–14%) | (31%–33%) | |
| 6 All providers who ordered medication for the patient in the previous 180 days | 20% | 29% | 18% | 25% |
| (19%–20%) | (28%–30%) | (17%–19%) | (24%–26%) | |
| 7 All providers who ordered laboratory tests for the patient in the previous 180 days | 26% | 12% | 18% | 13% |
| (25%–27%) | (12%–13%) | (17%–19%) | (13%–14%) | |
| 8 All providers who dictated clinical documents about the patient in the previous 180 days | 48% | 7% | 33% | 5% |
| (47%–49%) | (6%–7%) | (32%–34%) | (5%–5%) | |
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CI = confidence interval; ED = emergency department; PCP = primary care provider; PPV = positive predictive value.
