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Table 1 Characteristics of the included case-control studies reporting on the association of the Asp312Asn or Lys751Gln polymorphism in the xeroderma pigmentosum complementation group D ( XPD ) gene with the risk of non-Hodgkin’s lymphoma (NHL)

From: Association of the Asp312Asn and Lys751Gln polymorphisms in the XPD gene with the risk of non-Hodgkin’s lymphoma: evidence from a meta-analysis

Reference Year Country Ethnicity Source of controls Genotyping method Cases Controls MAF HWE
Asp312Asn (rs1799793 G > A) polymorphism GG GA AA All GG GA AA All   
Hill et al. [13] 2006 USA Mixed PB TaqMan 355 306 86 747 307 273 56 636 0.303 0.671
Shen et al. [14] 2006 USA Mixed PB TaqMan 199 189 57 445 226 238 70 534 0.354 0.557
Smedby et al. [15] 2006 Denmark and Sweden Caucasian PB Mass spectrometry 167 211 50 428 262 255 85 602 0.353 0.075
Shen et al. [16] 2007 Australia Caucasian PB TaqMan 272 210 72 554 238 211 52 501 0.314 0.606
Song et al. [17] 2008 China Asian HB PCR-RFLP 256 47 4 307 265 35 3 303 0.068 0.142
Worrillow et al. [18] 2009 UK Caucasian PB TaqMan 270 265 79 614 316 335 79 730 0.338 0.483
Lys751Gln (rs13181 A > C) polymorphism AA AC CC All AA AC CC All   
Hill et al. [13] 2006 USA Mixed PB TaqMan 320 333 93 746 278 295 66 639 0.334 0.343
Shen et al. [14] 2006 USA Mixed PB TaqMan 203 189 64 456 207 256 67 530 0.368 0.375
Smedby et al. [15] 2006 Denmark and Sweden Caucasian PB Mass spectrometry 159 209 56 424 231 254 106 591 0.394 0.015
Shen et al. [16] 2007 Australia Caucasian PB TaqMan 239 229 74 542 210 211 57 478 0.340 0.720
Song et al. [17] 2008 China Asian HB PCR-RFLP 261 43 5 309 270 32 3 305 0.062 0.075
Worrillow et al. [18] 2009 UK Caucasian PB TaqMan 286 329 85 700 294 378 107 779 0.380 0.405
Yang et al. [19] 2009 China Asian HB Mass Array 64 7 1 72 304 48 2 354 0.073 0.944
  1. MAF, minor allele frequency; HWE, Hardy–Weinberg equilibrium; USA, the United States of America; UK, the United Kingdom; PB, population-based; HB, hospital-based; PCR-RFLP, polymerase chain reaction-restriction fragment length polymorphism.