Table 1 Characteristics of the case–control studies included in meta-analysis
From: Effects of vitamin D receptor polymorphisms on urolithiasis risk: a meta-analysis
| Â | Â | Â | Â | Age group | Hypercalciuria in case group | Â | Case (n) | Control (n) | VDR polymorphisms | Genotyping method | Quality score |
|---|---|---|---|---|---|---|---|---|---|---|---|
First author | Year | Country | Ethnicity | Composition | (HWE) | ||||||
Ruggiero [10] | 1999 | Italy | Caucasian | Adult | Mixed* | NA | 27 | 150 | BsmI (No) | PCR-RFLP | 4 |
Jackman [11] | 1999 | USA | Caucasian | NA | All | Calcium | 17 | 37 | TaqI (No) | PCR-RFLP | 3 |
Chen a [12] | 2001 | China | Asian | Adult | NA | Calcium | 124 | 90 | BsmI (No) | PCR-RFLP | 4 |
Chen b [13] | 2001 | China | Asian | Adult | NA | Calcium | 146 | 90 | FokI (Yes) | PCR-RFLP | 4 |
Nishijima [14] | 2002 | Japan | Asian | Adult | NA | Calcium | 83 | 83 | ApaI (Yes), TaqI (Yes) | PCR-RFLP | 5 |
Mossetti [15] | 2003 | Italy | Caucasian | Adult | NA | Calcium | 220 | 114 | BsmI (Yes), TaqI (No) | PCR-RFLP | 5 |
Ozkaya [16] | 2003 | Turkey | Caucasian | Children | All | Calcium | 64 | 90 | ApaI (No), BsmI (Yes), TaqI (Yes) | PCR-RFLP | 4 |
Wang a [17] | 2003 | China | Asian | Adult | Mixed* | Calcium | 150 | 80 | ApaI (Yes), FokI (Yes), TaqI (Yes) | PCR-RFLP | 3 |
Relan [18] | 2004 | India | Asian | Adult | Mixed* | Calcium | 150 | 100 | BsmI (No), FokI (No) | PCR-RFLP | 3 |
Rendina [19] | 2004 | Italy | Caucasian | Adult | All | Calcium | 159 | 124 | ApaI (Yes), FokI (Yes) | PCR-RFLP | 6 |
Hu [20] | 2004 | China | Asian | Adult | Mixed* | Calcium | 186 | 90 | ApaI (Yes), FokI (Yes), TaqI (Yes) | PCR-RFLP | 5 |
Bid a [21] | 2005 | India | Asian | Adult | Mixed* | Calcium | 138 | 166 | FokI (No) | PCR-RFLP | 4 |
Bid b [22] | 2005 | India | Asian | Children | NA | Calcium | 50 | 60 | FokI (Yes) | PCR-RFLP | 5 |
Gunes [23] | 2006 | Turkey | Caucasian | Adult | NA | Calcium | 110 | 150 | ApaI (Yes), BsmI (Yes), TaqI (Yes) | PCR-RFLP | 6 |
Liu [24] | 2007 | China | Asian | Adult | NA | Calcium | 235 | 231 | FokI (Yes) | PCR-RFLP | 6 |
Moyano [25] | 2007 | Spain | Caucasian | Adult | NA | Calcium | 51 | 21 | ApaI (Yes), BsmI (Yes), TaqI (Yes) | PCR-RFLP | 3 |
Seyhan [26] | 2007 | Turkey | Caucasian | Children | Mixed* | Calcium | 80 | 40 | TaqI (No) | PCR-RFLP | 4 |
Wang b [27] | 2009 | China | Asian | Miexd | NA | Calcium | 90 | 90 | ApaI (No), FokI (No) | PCR-RFLP | 5 |
Mittal [28] | 2010 | India | Asian | Adult | NA | NA | 125 | 150 | ApaI (Yes), FokI (No), TaqI (No) | PCR-RFLP | 5 |
Seo [29] | 2010 | Korea | Asian | Miexd | NA | Calcium | 102 | 535 | ApaI (No), FokI (No), TaqI (No) | PCR-RFLP | 5 |
Basiri [30] | 2012 | Iran | Caucasian | Adult | NA | Calcium | 106 | 109 | FokI (No), TaqI (No) | PCR-SSCP | 5 |
Wang c [31] | 2012 | China | Asian | Adult | NA | Calcium | 464 | 450 | ApaI (Yes), BsmI (Yes), FokI (Yes), TaqI (Yes) | PCR-RFLP | 6 |
Ruan [32] | 2012 | China | Asian | Adult | NA | Calcium | 169 | 156 | FokI (No) | PCR-RFLP | 4 |