Due to a change in reagent affecting the performance of the Urinary Antigen Detection (UAD) assay, the positivity cut-off values of the assay had to be revised. A number of epidemiological studies have been affected by this change, including the original version of this article [1].
All samples of the study have been reanalysed and the impact on the study results can be found in the attached Excel sheet (Additional file 1):
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Due to change in cut-off for serotype 5 and 14, there is one case of serotype 5 and of serotype 14 less.
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The revision of the analysis showed 1 additional positive results for serotype 18C and for serotype 23 F
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Overall the total number of positive UAD results has not changed.
Anzeige
Results of the assay are shown in the corrected Tables 3 and 4, included in this erratum.
Table 3
Cross-table of the results of the BinaxNOW and Urine Antigen Detection assaysa
BinaxNOW assay | Total N(%) | |||
|---|---|---|---|---|
Negative N(%) | Positive N(%) | |||
Urine Antigen Detection Assay | Negative N (%) | 433 (95.0) | 8 (1.7) | 441 (96.7) |
Positive N (%) | 11 (2.4) | 4 (0.9) | 15 (3.3) | |
Total N (%) | 444 (97.4) | 12 (2.6) | 456 (100.0) | |
Table 4
Number and proportion of the serotypes in pneumococcal serious lower respiratory tract infections using the Urine Antigen Detection (UAD) assay
Pneumococcal serotype | N | % |
|---|---|---|
1 | 1 | 6.67 |
3 | 1 | 6.67 |
6A | 2 | 13.33 |
7 F | 2 | 13.33 |
14 | 1 | 6.67 |
18C | 2 | 13.33 |
19A | 5 | 33.33 |
23 F | 1 | 6.67 |
Totala
| 15 | 100.0 |
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