TABLE 1.
Patient characteristics and treatment outcomes according to presence of serum antibodies
| Variable | Positive anti‐S* (n = 37) | Positive anti‐N* (n = 9) | Negative anti S, N (n = 18) | p‐Value |
| Age (years) | 33.3 ± 6.1 | 31.9 ± 6.4 | 35.7 ± 7.03 | .27 |
| Infertility diagnosis | ||||
| Male factor | 13 (35%) | 1 (11%) | 5 (28%) | .36 |
| Unexplained | 20 (54%) | 6 (67%) a | 8 (44%) a | .02 |
| Other | 4 (11%) | 2 (22%) | 5 (28%) | .27 |
| Duration of infertility | 2.73 ± 3.26 | 3.5 ± 2.35 | 2.23 ± 3.26 | .46 |
| % patients with previous parity | 5 (13.5%) | 3 (33%) | 1 (5.5%) | .15 |
| BMI (kg/m2) | 26.04 ± 7.5 | 29.61 ± 8.13 | 25.12 ± 6.36 | .32 |
| Estradiol (pg/l) in blood [range] | 2070 [921–2919] | 1430 [803–2513] | 1637 [1028–2682] | .38 |
| Progesterone (ng/dl) in blood | .70 ± .42 | .78 ± .59 | .63 ± .32 | .67 |
| Endometrial thickness (mm) | 9.29 ± 1.97 | 9.72 ± 1.30 | 10.1 ± 2.18 | .34 |
| No. of follicles >14 mm | 7.45 ± 4.44 | 7.67 ± 4.89 | 7.28 ± 4.57 | .97 |
| No. of oocytes collected | 10.05 ± 7.6 | 12.3 ± 9.11 | 11.89 ± 9.67 | .63 |
| No. of mature oocytes (M2) | 6.13 ± 4.66 | 4.66 ± 3.70 | 8.2 ± 6.5 | .23 |
| No. of 2pn [range] | 3 [1–7] | 5 [2.5–6.5] | 3 [3–6] | .53 |
| Fertilization rate (2PN/M2) (%) | 49 | 60 | 58 | .43 |
| Cleavage rate (day3/2PN) (%) | 57 | 51 | 49 | .86 |
| Pregnancy rate (%) | 44 | 33 | 50 | .87 |
a
Eight patients were positive for both anti‐N and anti‐S.