Table. Association of APOB gene signal peptide deletion polymorphism with infertility considering deletion (D/D and D/W) as a risk factor

Study Group   Genotype   Fertile Men   Infertile Men   Azoospermia   OAT   OA   W/W   190 (75.70)   225 (76.53)   100 (72.99)   81 (79.41)   44 (80.00)   D/D and D/W   61 (24.30)   69 (23.47)   37 (27.01)   21 (20.59)   11 (20.20)   Odds ratio   ...   0.955   1.152   0.808   0.779   95% confidence interval   ...   0.644–1.418   0.717–1.853   0.461–1.414   0.379–1.601   P   ...   .82   .559   .45   .489   Abbreviations:..., not applicable; D, deletion; OA, oligoasthenozoospermia; OAT, oligoasthenoteratozoospemia; W, wild type.