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

Table 2 Methods of sample analysis in the different studies AC = affinity chromatography, TII = turbidimetric inhibition immunoassay, Ion = ion exchange chromatography, HPLC = high performance liquid chromatography, HR = haemolysing reagent, Col = colorimetry

	Dried blood spot data collection details			Assay methods
	Drying	Transportation	Extraction method	DBS	Venous
HbA1 _c
Anjali 2007 [19]	-	-	Anti-HbA1c antibody.	TII	TII
Buxton 2009 [20]	-	Special shipping	Roche HbA1c HR.	TII	HPLC
Egier 2011 [9]	-	-	Extraction buffer	HPLC	HPLC
Fokkema 2009 [21]*	-	-	HR	TII	TII
Fokkema 2009 [21]*	-	Routine mail	HR	TII	TII
Fokkema. 2009 [21]*	-	-		TII	TII
Gay 1990 [22]	Yes	Routine mail	-	AC	Ion
Jeppsson 1996 [23]	-	Routine mail	Triton X-100 buffer	HPLC	HPLC
Jones 2010 [10]*	Yes	-	HR and anti-HbA1c antibody.	TII	TII
Jones 2010 [10]*	Yes	Special shipping	HR and anti-HbA1c antibody.	TII	HPLC
Lacher 2013 [24]	Yes	Packed in dry ice	Extraction buffer	HPLC	HPLC
Lakshmy 2009 [25]	Yes	-	Anti-HbA1c antibody	TII/HPLC	TII
Little 1986 [26]	Yes	-	Water	AC	AC
Lomeo 2008 [27]	-	-	HR	HPLC	HPLC
Tabatabaei-Malazy 2011 [28]*	Yes	-	-	TII	TII
Tabatabaei-Malazy 2011 [28]*	Yes	-	-	TII	TII
Wikblad 1998 [29]	-	Routine mail	Phosphate-citrate buffer	HPLC	TII
Triglycerides
Lakshmy 2010 [30]*	-	Packed in ice	Methanol	Col.	Col.
Lakshmy 2012 [31]*	Yes	Packed in ice	Methanol	Col.	Col.
Quraishi 2006 [32]	Yes	-	Methanol	Col.	Col.
Total Cholesterol
Lacher 2013 [24]	Yes	Packed in dry ice	Deionized water	Col.	Col.
Lakshmy 2010 [30]*	-	Packed in ice	Methanol	Col.	Col.
Lakshmy 2012 [31]*	Yes	Packed in ice	Methanol	Col.	Col.
HDL
Lacher 2013 [24]	Yes	Packed in dry ice	Deionized water	Col.	Col.

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