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Table 1 Characteristics and findings of included studies

From: Comparability of HbA1c and lipids measured with dried blood spot versus venous samples: a systematic review and meta-analysis

  N Diabetes Population source Mean (SD) of DBS values Regression equation
HbA1 c      
Anjali 2007 [19] 78 Yes - 9.45 (±1.86) DBS = 0.95 V + 1.4
Buxton 2009 [20] 115 - Hospital - DBS = 0.85 V + 0.81
Egier 2011 [9] 85 - - - DBS = 0.933 V + 0.4
Fokkema 2009 [21]* 93 - Community - DBS = 1.006 V - 0.092
Fokkema 2009 [21]* 88 - Community - DBS = 0.994 V + 0.057
Fokkema. 2009 [21]* 73 - Community - DBS = 0.987 V - 0.011
Gay 1990 [22] 58 Yes Community 10.8 (±2) DBS = 0.8 V + 1.8
Jeppsson 1996 [23] 41 - - 7.49 DBS = 0.99 V + 0.16
Jones 2010 [10]* 73 - - 6.74 DBS = 0.984 V + 0.189
Jones 2010 [10]* 40 - - 8 DBS = 0.998 V - 0.204
Lacher et al. 2013 [24] 386 - Community 5.92 (±1.2) DBS = 0.94 V + 0.37
Lakshmy 2009 [25] 30 - Community 5.94 (±1.58) DBS = 0.9886 V + 0.0018
Little 1986 [26] 78 Yes/No - 10.2 DBS = 1.09 V + 2.17
Lomeo 2008 [27] 97 - - - DBS = 0.877 V + 1.09
Tabatabaei-Malazy 2011 [28]* 33 Yes Community 8.8 (±1.6) DBS = 1.20 V - 0.635
Tabatabaei-Malazy 2011 [28]* 33 Yes - 8.9 (±1.7) DBS = 1.25 V - 1.09
Wikblad 1998 [29] 145 Yes - - DBS = 1.03 V - 0.405
Triglycerides      
Lakshmy 2010 [30]* 85 - Community 1.6 (±0.6) DBS = 1.028 V - 0.1690
Lakshmy 2012 [31]* 613 - Community 1.16 to 1.87 (±0.45 to 0.79) DBS = 0.9549 V + 0.1875
Quraishi 2006 [32] 75 - Community 1.297 (±0.53) DBS = 0.88 V + 0.13
Total Cholesterol    -   
Lacher 2013 [24] 395 - Community 3.76 (±0.87) DBS = 0.52 V + 1.08
Lakshmy 2010 [30]* 85 - Community 5 (±1) DBS = 0.727 V + 1.170
Lakshmy 2012 [31]* 613 - Community - DBS = 0.7779 V + 1.1943
HDL      
Lacher 2013 [24] 395   Community 1.41 (±0.42) DBS = 0.7 V + 0.46
  1. *Some studies provided multiple estimates and are repeated in the table. SD = standard deviation, DBS = dried blood spot, V = venous.
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