Table 3. Ceftolozane-tazobactam MIC distributions and susceptibility in U.S. census divisions.
| U.S. census regionsa | No. of isolates at MIC (g/mL) of | Total No. | % susceptible | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.125 | 0.25 | 0.5 | 1 | 2 | 4 | 8 | 16 | ≥32 | |||
| 1. East North Central | 4 | 57 | 40 | 11 | 5 | 1 | 1 | 3 | 122 | 96 | |
| 2. East South Central | 31 | 39 | 9 | 3 | 2 | 1 | 85 | 96 | |||
| 3. Middle Atlantic | 5 | 49 | 21 | 2 | 1 | 2 | 80 | 96 | |||
| 4. Mountain | 12 | 93 | 46 | 20 | 8 | 1 | 5 | 6 | 191 | 94 | |
| 5. New England | 2 | 43 | 31 | 13 | 4 | 4 | 1 | 1 | 99 | 94 | |
| 6. Pacific | 2 | 4 | 66 | 41 | 14 | 5 | 1 | 2 | 6 | 141 | 94 |
| 7. South Atlantic | 1 | 4 | 116 | 76 | 24 | 15 | 5 | 1 | 2 | 244 | 97 |
| 8. West North Central | 1 | 47 | 33 | 10 | 8 | 4 | 4 | 107 | 93 | ||
| 9. West South Central | 1 | 6 | 71 | 43 | 15 | 3 | 1 | 140 | 99 | ||
a, states in each U.S. Census Bureau division are: 1, Indiana, Illinois, and Ohio; 2, Kentucky, Mississippi, and Tennessee; 3, New York, and Pennsylvania; 4, Arizona, New Mexico, Utah, and Nevada; 5, Connecticut, Massachusetts, and Rhode Island; 6, California, and Washington; 7, Florida, Georgia, Maryland, North Carolina, South Carolina, and Virginia; 8, Iowa, Missouri, and Minnesota; 9, Oklahoma, and Texas. MIC, minimum inhibitory concentration.