CDC FoodCORE Year Two Cumulative Metrics – Salmonella, Shiga Toxin-producing Escherichia coli, and Listeria (SSL)
Data Report Period: October 1, 2011 to December 31, 2012
| Performance Metrics: (See SSL Metrics for complete language and definition) |
Salmonella Measures Mean (Range) |
STEC Measures Mean (Range) |
Listeria Measures Mean (Range) |
SSL Measures Mean of Individual Means |
|---|---|---|---|---|
| 1a- Total number of isolates and isolate-yielding specimens1 | 1029.3 (375 – 1765) | 179.6 (21 – 396) | 27.6 (4 – 77) | 412.2 |
| 1b- Number of primary isolates/isolate-yielding specimens | 969.4 (349 – 1699) | 170.0 (21 – 343) | 26.4 (4 – 77) | 388.6 |
| 2a- Total number of STEC clinical specimens or samples received at PHL | N/A | 294.1 (28 – 1008) | N/A | N/A |
| 2b- Number; Percent isolate-yielding STEC specimens or samples | N/A | 115.3 (11 – 241); 52.4% (27 – 95%) | N/A | N/A |
| 3- Median days from isolation /isolate-yielding specimen collection to receipt at PHL1 | 5.6 days (4 – 8 days) | 4.6 days (3 – 6) days | 5.9 days (4 – 8) days | 5.4 days |
| 4- Median days from receipt of isolate-yielding specimens at PHL to recovery of isolate | 2.8 days (1 – 6 days) | 3.8 days (1 – 6) days | 2.3 days (1 – 3) days | 3.0 days |
| 5- Percent of primary isolates with serotype information1 | 99.1% (94 – 100%) | 94.6% (82 – 100%) | N/A | 96.9% |
| 6- Median days from isolate receipt (recovery) at PHL to serotype result1 | 4.0 days (2 – 6 days) | 5.3 days (3 – 7) days | N/A | 4.7 days |
| 7- Percent of primary isolates with PFGE information1 | 98.1% (94 – 100%) | 97.4% (89 – 100%) | 98.7% (91 – 100%) | 98.1% |
| 8- Median days from isolate receipt (recovery) at PHL to PulseNet upload1 | 5.4 days (2 – 13 days) | 4.1 days (2 – 7) days | 3.7 days (2 – 7) days | 4.4 days |
| 9- Number of laboratory confirmed cases reported to epidemiology staff1 | 971.4 (286 – 1433) | 151.6 (15 – 318) | 20.0 (4 – 46) | 381.0 |
| 10a- Percent of cases with attempted interview1 | 98.0% (94 – 100%) | 98.1% (90 – 100%) | 100% (100 – 100%) | 98.7% |
| 10b- Median days from case report to interview attempt | 2.3 days (0 – 4 days) | 1.9 days (0 – 5) days | 1.9 days (0 – 8) days | 2.0 days |
| 10c- Percent of cases with complete demographic data | 85.7% (71 – 93%) | 91.7% (81 – 100%) | 96.9% (88 – 100%) | 91.4% |
| 10d- Percent of cases with exposure history1 | 83.9% (66 – 93%) | 86.4% (73 – 96%) | 86.1% (75 – 100%) | 85.5% |
| 10d.i- Percent of SSL cases with full shotgun or case exposure completed | 77.5% (64 – 93%) | 77.7% (54 – 88%) | 72.8% (44 – 100%) | 76.0% |
| 10e- Percent of cases with serotype information | 94.0% (78 – 100%) | 93.1% (77 – 100%) | N/A | 93.6% |
| 10f- Percent of cases with PFGE information | 92.0% (78 – 100%) | 93.4% (78 – 100%) | 95.3% (87 – 100%) | 93.6% |
| 10f.i- Percent of cases with PFGE with complete epi data1 | 65.3% (42 – 87%) | 77.3% (57 – 92%) | 75.3% (65 – 88%) | 72.6% |
| 10g- Reasons for not interviewing cases | 652 (9.6%) have reason for not interviewing | 63 (5.9%) have reason for not interviewing | 25 (17.9%) have reason for not interviewing | 740 (9.2%) have reason for not interviewing |
| 10g.i- Lost to Follow-up: Number; Percent | 85.4 (11 – 282); 67.5% (24 – 90%) | 7.5 (0 – 20); 48.8% (0 – 91%) | 1.0 (0 – 3); 33.6% (0 – 100%) | 31.3 (50.0%) |
| 10g.ii- Refused: Number; Percent | 9.8 (0 – 22); 6.3% (0 – 12%) | 1.8 (0 – 7); 19.8% (0 – 70%) | 0.8 (0 – 3); 12.5% (0 – 50%) | 4.1 (12.9%) |
| 10g.iii- Time lag too long: Number(Percent) | 1.8 (0 – 4); 2.8% (0 – 4%) | 0.4 (0 – 2); 1.6% (0 – 8%) | 0 (0 – 0); 0% (0 – 0%) | 0.7 (1.5% |
| 10g.iv- Other: Number; Percent | 41.8 (1 – 130); 22.4% (4 – 65%) | 1.4 (0 – 3); 14.4% (0 – 30%) | 4.3 (0 – 10); 51.8% (0 – 100%) | 15.8 (29.5%) |
| 11- Number of clusters | 69.4 (11 – 101) | 12.6 (1 – 35) | 2.9 (0 – 13) | 28.3 |
| 11a- Median and range of cluster size(primary cases only) | Median size 2.2 (2 – 3), Minimum size 1.3 (1 – 2), Maximum size 26 (11 – 42) | Median size 2.7 (2 – 6), Minimum size 1.8 (1 – 2), Maximum size 22.8 (2 – 79) | Median size 1.0 (1 – 1), Minimum size 1.0 (1 – 1), Maximum size 1.3 (1 –2) | Mean (Median) = 2.0, Mean (Minimum) = 1.4, Mean (Maximum) = 16.7 |
| 12- Number; Percent of clusters with cases in multiple states | 27.7 (6 – 52); 41.4% (7 – 69%) | 5.3 (0 – 14); 40.0% (0 – 60%) | 2.8 (1 – 8); 85.8% (62 – 100%) | 11.8 (55.7%) |
| 13a- Number; Percent of clusters with routine interview of cases1 | 62.0 (11 – 101); 90.7% (61 – 100%) | 11.4 (1 – 32); 95.3% (88 – 100%) | 3.8 (1 – 13); 93.4% (67 – 100%) | 25.7 (93.1%) |
| 13b- Number; Percent of clusters with supplemental/targeted interviewing | 14.9 (6 – 30); 26.4% (7 – 54%) | 7.1 (1 – 22); 70.3% (20 – 100%) | 0.6 (0 – 1); 31.6% (0 – 100%) | 7.5 (42.8%) |
| 13c- Number; Percent of clusters where an analytic epidemiologic study conducted (>10 Salmonella or STEC cases, >5 Listeria cases)1 | 4.3 (1 – 8); 13.7% (3 – 50%) | 2.9 (0 – 14); 31.4% (0 – 100%) | 0.4 (0 – 1); 11.6% (0 – 50%) | 2.5 (18.9%) |
| 13d- Median duration ( in days) of epidemiologic investigation, from cluster notification to end of investigation/close-out | 35.2 days (7 – 60) | 34.0 days (10 – 60) | 106.0 days (54 – 204) | 58.4 days |
| 14- Number; Percent of clusters with suspect vehicle/source identified1 | 6.7 (3 – 15); 12.6% (3 – 36%) | 5.4 (0 – 22); 37.6% (0 – 75%) | 0.0 (0 – 0); 0.0% (0 – 0%) | 4.0 (16.7%) |
| 15- Number; Percent of clusters with confirmed vehicle/source identified1 | 6.0 (1 – 12); 8.9% (2 – 18%) | 1.6 (0 – 4); 16.6% (0 – 50%) | 0.8 (0 – 3); 14.6% (0 – 50%) | 2.8 (13.4%) |
| 16- Number; Percent of clusters with identified vehicle/source with: | ||||
| 16a- Exclusion of ill person(s) | 0.5 (0 – 1); 2.8% (0 – 9%) | 2.3 (0 – 8); 20.3% (0 – 50%) | No cumulative data available2 | 1.7 (11.6%) |
| 16b- Remediation or closure | 0 (0 – 0); 0% (0 – 0%) | 1.8 (0 – 5); 23.5% (0 – 50%) | No cumulative data available2 | 0.9 (11.8%) |
| 16c- Educational campaign | 1.3 (0 – 3); 15.3% (0 – 43%) | 2.3 (0 – 8); 14.0% (0 – 31%) | No cumulative data available2 | 1.8 (14.7%) |
| 16d- Media/public messaging | 1.3 (0 – 3); 7.0% (0 – 14%) | 1.3 (0 – 3); 27.8% (0 – 50%) | No cumulative data available2 | 1.3 (17.4%) |
| 16e- Regulatory action (recall, hold) | 2.8 (0 – 5); 20.0% (0 – 71%) | 0.8 (0 – 2); 14.5% (0 – 50%) | No cumulative data available2 | 1.8 (17.3%) |
| 17- Number; Percent of clusters linked to a restaurant/food establishment with EHA1 | 2.5 (1 – 5); 21.2% (2 – 100%) | 2.0 (0 – 5); 37.9% (0 – 100%) | 0.6 (0 – 2); 13.0% (0 – 50%) | 1.7 (24.0%) |
| 18- Number; Percent of clusters with food/environmental sample collected for testing1 | 3.7 (1 – 7); 45.7% (3 – 9%) | 1.7 (0 – 5); 31.6% (0 – 100%) | 0.6 (0 – 2); 13.0% (0 – 50%) | 2.0 (16.8%) |
| 19- Number; Percent of clusters where EH, Ag, regulatory, or food safety program staff contacted1 | 18.4 (1 – 82); 23.0% (5 – 93%) | 4.6 (1 – 13); 47.9% (25 – 100%) | 0.8 (0 – 3); 14.6% (0 – 50%) | 7.9 (28.5%) |
| 20- Number; Percent of outbreaks with NORS form completed1 | 10.0 (5 – 16); 69.5% (5 – 100%) | 2.2 (1-5); 70.0% (20-100%) | No cumulative data available2 | 6.1 (69.8%) |
1 Minimum reporting requirement for FoodCORE Centers
2 Cumulative data for this metric were not reported from 3 or more centers
This table was included as a supplemental data file in an article published in final form in the Journal of Public Health Management and Practice. 21(4):E18-26, July/August2015 (doi: 10.1097/PHH.0000000000000115). (http://journals.lww.com/jphmp/pages/default.aspx)