Characteristics | Spring (n = 255) | Summer (n = 241) | Autumn (n = 194) | Winter (n = 170) | P |
---|---|---|---|---|---|
Fertilization methoda | |||||
IVF (n) | 134 | 139 | 102 | 81 | NS |
Other (n)c | 121 | 102 | 92 | 89 | |
Age (year)b | 32(31–34) | 32(31–34) | 32(31–33) | 32(31–34) | NS |
Gn dose (IU), totalb | 2700(2250–3600) | 2700(2250–3600) | 2700(2250–3600) | 2887.5(2250–3750) | NS |
Stimulation period (day)b | 11(10–12) | 11(10–12) | 11(10–12) | 11(10–12) | NS |
LH baselineb, d | 1.9(1.2–3.0) | 2.1(1.3–3.2) | 1.8(1.2–2.8) | 1.8(1.2–2.5) | NS |
LH at triggerb, d | 2.2(1.4–3.3) | 2.2(1.5–3.5) | 2.1(1.4–3.1) | 1.8(1.3–2.7) | NS |
E2 baselineb, d | 53(44–77.8) | 55(44–85) | 49(44–71.8) | 49(44–73.8) | NS |
E2 at triggerb, d | 12,706(8042–21,297) | 11,556.5(7970.3–17,127.5) | 11,316(7834.3–17,988.3) | 10,576(6598.8–17,395) | NS |
Day3 FSHb, d | 6.9(5.9–8.1) | 6.9(5.8–7.9) | 6.8(5.8–7.9) | 6.9(6.3–8) | NS |
Infertility diagnosisa | |||||
Tubal factor | 133 | 132 | 107 | 85 | NS |
Pelvic Adhesions | 110 | 110 | 90 | 62 | NS |
Uterine factor | 5 | 2 | 5 | 2 | NS |
Male Factor | 110 | 106 | 86 | 83 | NS |
Anovulation | 33 | 32 | 24 | 20 | NS |
Endometriosis | 47 | 48 | 34 | 26 | NS |
Sexual Dysfunction | 3 | 2 | 2 | 6 | NS |
Immunological | 1 | 0 | 1 | 0 | NS |
Unexplained | 9 | 8 | 8 | 8 | NS |
Oocyte retrieved (n)b | 11(8–14) | 10(7–13) | 10(7–14) | 10(7–13) | NS |
Fertilized oocyte (n)b | 6(4–9) | 6(4–8) | 6(4–8) | 5.5(4–8.75) | NS |
Available embryos (n)b, e | 3(2–6) | 3(2–5) | 3(2–5.8) | 3(2–4) | NS |
Transferred embryo gradeb, d, f | 4(4–4) | 4(4–4) | 4(4–4) | 4(4–4) | NS |