Table 6 Publication year and journal impact factor, stratified by Abstrackr’s relevance predictions
From: Decoding semi-automated title-abstract screening: findings from a convenience sample of reviews
Study characteristic | All studies | Correctly predicted as relevant | Incorrectly predicted as irrelevant | Mean difference (95% CI)a | P valueb |
|---|---|---|---|---|---|
Publication year, mean (SD) | 2008 (7) | 2008 (7) | 2006 (10) | 1.77 (0.27, 3.26) | 0.02 |
Impact factor, mean (SD) | 4.87 (8.49) | 4.91 (8.39) | 4.61 (9.14) | 0.30 (− 1.44, 2.03) | 0.74 |