VOLUME 104
104(1) January, page 49
El Sherif R, Pluye P, Gore G, Granikov V, Hong QN. Performance of a mixed filter to identify relevant studies for mixed studies reviews. J Med Libr Assoc. 2016 Jan;104(1):47–51. DOI: http://dx.doi.org/10.3163/1536-5050.104.1.007.
The totals in Table 1, Number of relevant records retrieved and Number of nonrelevant records not retrieved by the filter, should be 1,776 and 1,398, rather than 1,176 and 1,396, respectively. The corresponding total number of records identified in the study should be 4,546, rather than 4,547.
Corrected Table 1.
Performance of the mixed filter
| Journal | Number of relevant records retrieved (a*) | Number of relevant records not retrieved by filter (b*) | Number of nonrelevant records retrieved by the filter (c*) | Number of nonrelevant records not retrieved by the filter (d*) | Precision (%) | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|---|---|
| Discipline 1: Primary Care | |||||||
| High IF: | |||||||
| Ann Fam Med | 294 | 21 | 78 | 254 | 79.0 | 93.3 | 76.5 |
| Low IF: | |||||||
| J Fam Pract | 23 | 2 | 492 | 402 | 4.5 | 92.0 | 45.0 |
| Discipline 2: Public Health and Epidemiology | |||||||
| High IF: | |||||||
| Int J Epi | 488 | 9 | 317 | 495 | 60.6 | 98.2 | 61.0 |
| Low IF: | |||||||
| Palliative Med | 291 | 26 | 162 | 142 | 64.2 | 91.8 | 46.2 |
| Discipline 3: Medical Informatics | |||||||
| High IF: | |||||||
| Overall | |||||||
| 6 included journals | 1,776 | 208 | 1,164 | 1,398 | 60.4% | 89.5% | 54.5% |
IF=impact factor.
Legend:
High precision ≥ 50%=a:(a+c)
High sensitivity ≥ 80%=a:(a+b)
High specificity ≥ 50%=d:(c+d)
a=relevant records retrieved; b=relevant records not retrieved; c=nonrelevant records retrieved; d= nonrelevant records not retrieved.