The evaluation of MRSA surveillance cultures by the number and combinations of anatomical sites
, , , , and | Jul 28, 2016
About this article
Article Category: Original scientific article
Published Online: Jul 28, 2016
Page range: 24 - 30
Received: Nov 27, 2015
Accepted: May 31, 2016
DOI: https://doi.org/10.1515/sjph-2017-0004
Keywords
© National Institute of Public Health, Slovenia
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
The type and number of SC for MRSA analysis.
| Maribor | Celje | Kranj | Total | |
|---|---|---|---|---|
| 32,389 | 21,500 | 11,362 | ||
| 430 | 492 | 311 | ||
| 1.3% | 2.3% | 2.7% | ||
| no data - the data management in Maribor did not allow to group the swabs of MRSA negative patients into “Surveillance sample set (SSS)”. | 7,105 | 3,565 | ||
| 231 | 260 | 170 | ||
| no data - the data management in Maribor did not allow to group the swabs of MRSA negative patients into “Surveillance sample set (SSS)”. | 3.7% | 4.8% | ||
- if repeated surveillance swabs were received from a single patient, such patient was counted once only | 6,141 | 5,050 | 2,083 | |
- each MRSA positive patient was counted once only | 152 | 203 | 135 | |
| 2.5% | 4.0% | 6.5% | ||
| 101 | 106 | 83 | ||
| 65 | 80 | 45 | ||
| 58 | 72 | 34 | ||
| 7 | 2 | 8 |
NOSE (the original questionnaire).
| Category | Anatomic sites | ||||
|---|---|---|---|---|---|
| Nose | Naso-pharynx | ||||
| Perineum | Anus | Perianal | Rectum | ||
| Skin | Groin | Axilla | Ear | Swabs of stoma (tracheostoma, gastrostoma, ileostoma and colostoma), cannula and tubus | |
| Wound | Pressure sore | Lesion | |||
| Trachea aspirate | Trachea swabs | ||||
| Urine | |||||
| Excreta | |||||
The sensitivty of surveillance cultures regarding the anatomical location and combination of swabs.A MRSA positive locations in the nose, throat, perineum (NTP) set.
| A combination of locations | Total(%) |
|---|---|
| The number of MRSA positive patients with the nose, throat, perineum set | 189 (100) |
| The number of patients with the MRSA in all three swabs | 59 (31.2) |
| The number of patients with the MRSA in the nose and perineum | 23 (12.2) |
| The number of patients with the MRSA in the nose and throat | 18 (9.5) |
| The number of patients with the MRSA in the throat and perineum | 8 (4.2) |
| The number of patients with the MRSA in the nose only | 28 (14.8) |
| The number of patients with the MRSA in the perineum only | 29 (15.3) |
| The number of patients with the MRSA in the throat only | 24 (12.7) |
The sensitivity of different combinations of surveillance swabs included in the NTP SSS.
| SSS | Sensitivity |
|---|---|
| NTS | 100 |
| NT | 75.0 |
| NS | 87.0 |
| TP | 75.0 |
| N | 66.7 |
| T | 59.1 |
| S | 34.0 |
MRSA positive locations in the SSS NTS.
| A combination of locations | Total (%) |
|---|---|
| The number of MRSA positive patients with the NTS set | 276 (100) |
| The number of patients with the MRSA in all three swabs | 74 (26.8) |
| The number of patients with the MRSA in the nose and skin | 35 (12.7) |
| The number of patients with the MRSA in the nose and throat | 40 (14.5) |
| The number of patients with the MRSA in the throat and skin | 13 (4.7) |
| The number of patients with the MRSA in the nose only | 35 (12.7) |
| The number of patients with the MRSA in the skin only | 43 (15.6) |
| The number of patients with the MRSA in the throat only | 36 (13.0 ) |
The type and number of surveillance cultures (SC) sent for the MRSA detection, and the proportion of positive results.
| SAMPLE | Total(%) | Positive (%) | % of positive swabs taken form this location |
|---|---|---|---|
| 20,378 (31.2) | 418 (33.9) | 2.1 | |
| 20,426 (31.3) | 363 (29.4) | 1.8 | |
| 12,319 (18.9) % | 228 (18.5) | 1.9 | |
| 10,707 (16.4) | 161 (13.1) | 1.5 | |
| 894 (1.4) | 52 (4.2) | 5.8 | |
| 200 (0.3) | 3 (0.2) | 1.5 | |
| 13 (0.0) | 0 (0.0) | 0.0 | |
| 289 (0.4) | 4 (0.3) | 1.4 | |
| 25 (0.0) | 4 (0.3) | 16.0 | |
| 65,251 (100) | 1233 (100) | 1.9 |