Table 2.
Performance of drug-interaction software by pharmacy type
| Sensitivity | Specificity | Positive predictive value | Negative predictive value | |
| Community pharmacies (n=40)* | ||||
| Median | 0.92 | 1.00 | 1.00 | 0.86 |
| Maximum | 1.00 | 1.00 | 1.00 | 1.00 |
| Minimum | 0.31 | 0.83 | 0.88 | 0.40 |
| Inpatient hospital pharmacies (n=14) | ||||
| Median | 0.77 | 1.00 | 1.00 | 0.67 |
| Maximum | 1.00 | 1.00 | 1.00 | 1.00 |
| Minimum | 0.38 | 0.83 | 0.93 | 0.43 |
| ‘Other’ pharmacies (n=10)† | ||||
| Median | 0.85 | 1.00 | 1.00 | 0.75 |
| Maximum | 1.00 | 1.00 | 1.00 | 1.00 |
| Minimum | 0.23 | 1.00 | 1.00 | 0.38 |
*
Approximately two-thirds (n=27) of community pharmacies were classified as retail ‘chain pharmacies.’
†
‘Other’ pharmacies included: two infusion pharmacies, two prison pharmacies, a long-term care pharmacy, two rehabilitative-care pharmacies, and three Indian Health Service facilities.