Table 2.
Region X 2011 chlamydia and gonorrhea data. Average number of tests (sample standard deviation, SD) from B = 5000 sets of pools for 2-, 3-, and 4-stage hierarchical algorithms. The optimal configuration is determined by minimizing using the 2010 prevalences; see Web Appendix E. The percent reduction in the average number of tests is also shown. The maximum allowable master pool size is 20.
| State | # Stages | Swab
|
Urine
|
||||
|---|---|---|---|---|---|---|---|
| Configuration | # Tests (SD) | % Reduction | Configuration | # Tests (SD) | % Reduction | ||
| Alaska | S = 2 | 5 : 1 | 1509.9 (30.7) | – – | 4 : 1 | 2615.6 (31.5) | – – |
| S = 3 | 9 : 3 : 1 | 1343.7 (31.2) | 11.0 | 9 : 3 : 1 | 2460.4 (42.1) | 5.9 | |
| S = 4 | 18 : 6 : 3 : 1 | 1352.4 (38.5) | 10.4 | 18 : 6 : 3 : 1 | 2512.0 (54.1) | 4.0 | |
|
| |||||||
| Idaho | S = 2 | 5 : 1 | 3938.0 (49.9) | – – | 5 : 1 | 2253.4 (34.8) | – – |
| S = 3 | 9 : 3 : 1 | 3511.3 (51.1) | 10.8 | 9 : 3 : 1 | 2047.1 (37.4) | 9.2 | |
| S = 4 | 18 : 6 : 3 : 1 | 3516.0 (66.0) | 10.7 | 18 : 6 : 3 : 1 | 2082.2 (48.5) | 7.6 | |
|
| |||||||
| Oregon | S = 2 | 5 : 1 | 19633.1 (108.9) | – – | 4 : 1 | 4459.0 (39.2) | – – |
| S = 3 | 9 : 3 : 1 | 17322.5 (112.1) | 11.8 | 9 : 3 : 1 | 4073.1 (52.7) | 8.7 | |
| S = 4 | 18 : 6 : 3 : 1 | 17272.5 (140.2) | 12.0 | 18 : 6 : 3 : 1 | 4134.2 (68.3) | 7.3 | |
|
| |||||||
| Washington | S = 2 | 5 : 1 | 10497.1 (80.4) | – – | 5 : 1 | 8324.5 (66.2) | – – |
| S = 3 | 9 : 3 : 1 | 9199.5 (81.0) | 12.4 | 9 : 3 : 1 | 7454.5 (70.2) | 10.5 | |
| S = 4 | 18 : 6 : 3 : 1 | 9162.6 (103.8) | 12.7 | 18 : 6 : 3 : 1 | 7521.1 (90.1) | 9.7 | |