Table 1.

Collection of clinical characteristics

Female	Date of birth, female age, alcohol consumption, smoking, caffeine intake, drugs intake, exercise pattern, education, BMI, blood pressure, general medical history (hypertension, diabetes mellitus, surgeries, earlier blood transfusions), use of medication, ethnicity and family history.
Male	Date of birth, male age, alcohol consumption, smoking, caffeine intake, drugs intake, exercise pattern, education, BMI, general medical history (hypertension, diabetes mellitus, surgeries, etc), use of medication, ethnicity and family history.
Obstetric history	Parity, no of miscarriages, ectopic pregnancies or induced abortions, mode of conception, mode of delivery of previous births, gestational age at previous births, birth weight of children of previous births.
RPL examination	Presence of antiphospholipid antibodies (anticardiolipin IgG and IgM, β2 glycoprotein I antibodies IgG and IgM, and lupus anticoagulant), thyroid function (thyroid-stimulating hormone), presence of thyroid antibodies, parental chromosomal abnormalities and presence of congenital uterine anomalies.

BMI, body mass index; RPL, recurrent pregnancy loss.