卵泡<14mm 卵子成熟率只有40-50%

 卵泡<14mm 取出的比率只有60-80%

https://www.rbmojournal.com/article/S1472-6483(25)00253-6/fulltext

Follicular diameter	No. of cycles	Median oocyte retrieval rates (%)	95% CI
≥11 mm	429	60.0	54.3–65.7
≥12 mm	429	66.7	62.5–70.8
≥13 mm	429	72.7	68.0–77.4
≥14 mm	429	82.6	76.6–88.5
≥15 mm	429	100.0	92.1–107.9
≥16 mm	429	103.3	101.3–105.3
≥17 mm	426	133.3	123.3–143.4
≥18 mm	406	175.0	159.6–190.4
≥19 mm	374	250.0	225.3–274.7
≥20 mm	310	300.0	254.9–345.1
≥21 mm	229	333.3	268.8–397.9
≥22 mm	167	400.0	332.0–468.0
≥23 mm	101	400.0	304.4–495.6
≥24 mm	63	400.0	304.1–495.9

Table 2

Median oocyte retrieval rates

Median oocyte retrieval rates (95% CI) were measured by dividing the number of oocytes retrieved by the number of follicles measuring equal to or greater than each of the follicular diameters.

Bold type indicates statistical significance.

Follicular diameter	No. of cycles	Median mature oocyte retrieval rates (%)	95% CI
≥11 mm	218	42.9	39.4–46.3
≥12 mm	218	46.7	43.2–50.2
≥13 mm	218	50.0	46.1–53.9
≥14 mm	218	58.8	54.2–63.5
≥15 mm	218	66.7	62.1–71.2
≥16 mm	218	83.3	78.3–88.4
≥17 mm	216	100.0	90.9–109.1
≥18 mm	207	133.3	112.5–154.2
≥19 mm	188	200.0	176.4–223.6
≥20 mm	158	233.3	200.3–266.4
≥21 mm	117	300.0	228.1–371.9
≥22 mm	80	325.0	236.5–413.5
≥23 mm	47	300.0	235.3–364.7
≥24 mm	27	300.0	173.7–426.3

Table 3

Median mature oocyte retrieval rates

Median mature oocyte retrieval rates (95% CI) were measured by dividing the number of mature oocytes retrieved by the number of follicles measuring equal to or greater than each of the follicular diameters.