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Table 4 Demographic information and laboratory outcomes of subgroup patients who underwent two cycles with only one clinical pregnancy outcome

From: The effects of daily meteorological perturbation on pregnancy outcome: follow-up of a cohort of young women undergoing IVF treatment

CharacteristicsSpring (n = 33)Summer (n = 14)Autumn (n = 22)Winter (n = 17)P
Fertilization methoda
 IVF (n)211099NS
 Other (n)c124138
Age (year)b33(31–33)32.5(31.3–34)32(30–33)32(31–33)NS
Gn dose (IU), totalb2925(2475–3750)2587.5(2300–3993.8)3262.5(2700–4293.8)3600(2475–4500)NS
Stimulation period (day)b11(10–12)11(11–12)11.5(11–12)11(10–12)NS
LH baselineb2(1.3–3.1)1.6(1.0–2.9)1.3(0.9–3.0)1.6(0.9–2.1)NS
LH at triggerb2(1.3–3.1)2.0(0.9–3.1)2.1(1.7–2.9)1.6(1.2–1.9)NS
E2 baselineb,58(44–94)57(44.25)52(44–75.3)48(44–54)NS
E2 at triggerb,11,242(7133–19,277)13,713.5(8377–18,862.3)12,054(7530–23,103)9275(5772–12,038)NS
Day3 FSHb, d6.8(6.1–8.1)7.5(6.8–8.2)7.4(6.5–8.8)7.4(6.3–8.4)NS
Oocyte retrieved (n)b9(8–14)12(9–15.8)9(6.3–11)13(8–16)NS
Fertilized oocyte (n)b6(4–8)5.5(3.3–9.5)7(4–7)6(5–9)NS
Available embryos (n)b, e2(2–4)3(1.25–5)2(2–3)4(2–4)NS
Transferred embryof gradeb4(4–4)4(4–4)4(4–4)4(4–4)NS
  1. NS Non-significant
  2. aP value was calculated using Chi-square test
  3. bP value was calculated using Kruskal-Wallis test
  4. cOther fertilization methods include ICSI, MESA, TESA
  5. dMissing observations were removed (1 in LH baseline, 7 in FSH)
  6. eAvailable embryos are the sum of frozen and transferred embryos
  7. fTransferred embryo grade of a cycle is the highest grade of all transferred embryo