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Table 2 Comparison of TST and QFT results in healthcare workers from different studies

From: Tuberculin skin test and Quantiferon test agreement and influencing factors in tuberculosis screening of healthcare workers: a systematic review and meta-analysis

First author Sample size (n) TST+ (n) QFT+ (n) TST+/QFT+ (n) TST+/QFT- (n) TST-/QFT+ (n) TST-/QFT- (n)
Zwerling et al., 2012 [45] 387a 22 24 7 15 17 348
Khoury et al., 2011 [40] 611 50 12 8 42 4 557
Fox et al., 2009 [30] 91a 31 17 9 22 8 52
Vinton et al., 2009 [29] 341a 114 21 16 98 5 222
Larcher et al., 2012 [46] 549 160 81 57 103 24 365
Nienhaus et al., 2008b [25] 261 63 25 15 48 10 188
Soborg et al., 2007b [23] 139 47 2 2 45 0 92
Girardi et al., 2009 [31] 115 61 40 36 25 4 50
Freeman et al., 2012b [47] 317a 67 28 19 48 9 241
Tripodi et al., 2009 [32] 148 97 51 23 74 5 46
Alvarez-Leon et al., 2009 [33] 123a 9 8 5 4 3 111
Casas et al., 2009 [34] 145a 101 43 42 59 1 43
Talebi-Taher et al., 2011 [41] 200 105 17 14 91 3 92
Hotta et al., 2007b [24] 202a 120 3 3 117 0 82
Topic et al., 2009 [35] 54 34 17 15 19 2 18
Ozdemir et al., 2010b [38] 76 41 65 39 2 26 9
Torres Costa et al., 2011 [42] 2,884 2,102 953 850 1252 103 679
Rafiza et al., 2011 [43] 95a 56 13 11 45 2 37
Choi et al., 2008 [26] 80 36 16 13 23 3 41
Lee et al., 2009 [36] 196 93 28 22 71 6 97
Lee et al., 2010 [39] 82 31 19 10 21 9 42
Moon et al., 2011 [44] 156a 52 32 18 34 14 90
Jung et al., 2012 [48] 153 23 8 6 17 2 128
Jo et al., 2013 [50] 493 181 85 54 127 31 281
Whitaker et al., 2013 [51] 260a 145 112 90 55 22 93
Mirtskhulava et al., 2008 [27] 265 177 159 133 44 26 62
Lien et al., 2009 [37] 255a 163 135 114 49 21 71
Pai et al., 2008 [28] 719 298 288 226 72 62 359
He et al., 2012 [49] 917 439 638 350 89 288 190
Total 10,314 4,918 2,940 2,207 2,711 710 4,686
  1. awe consider only subjects with both TST and QFT results, excluding undeterminate quantiferon results.
  2. bStudies not included in the meta-analysis.