Table 3.
Comparison of kinetic timings for embryo development in patients using surgically retrieved sperm, PESA or TESE versus control sperm (CS) isolated from semen of non-male factor patients
| Patient group | Control (CS) (n = 209) | 95% CI | PESA (n = 175) | 95% CI | TESE (n = 210) | 95% CI | P value |
|---|---|---|---|---|---|---|---|
| Parameter | Mean (h) | Mean (h) | Mean (h) | ||||
| t2 | 26.3 | 25.7–26.9 | 26.1 | 25.4–26.7 | 27.1 | 26.5–27.7 | < 0.05a |
| t3 | 36.0 | 35.0–36.9 | 35.3 | 34.2–36.3 | 36.5 | 35.6–37.5 | NS |
| t4 | 38.0 | 37.2–38.9 | 37.3 | 36.3–38.2 | 39.1 | 38.2–39.9 | < 0.05a |
| t5 | 48.6 | 47.2–49.9 | 46.8 | 45.4–48.3 | 48.6 | 47.2–50.0 | NS |
| t8 | 58.9 | 57.4–60.4 | 58.0 | 56.3–59.8 | 60.5 | 58.7–62.4 | < 0.05a |
| CP | 67.6 | 65.3–69.8 | 63.8 | 61.3–66.3 | 69.1 | 66.5–71.8 | < 0.05ac |
| tM | 91.9 | 90.3–93.6 | 92.2 | 90.3–94.1 | 91.1 | 88.8–93.3 | NS |
| tSB | 101.2 | 99.6–102.8 | 101.4 | 99.5–103.3 | 103.5 | 101.6–105.4 | NS |
| tB | 106.2 | 104.6–107.9 | 107.3 | 105.4–109.3 | 108.5 | 106.2–110.7 | NS |
| tEB | 114.3 | 112.4–116.2 | 114.4 | 112.2–116.6 | 115.8 | 113.2–118.5 | NS |
| t3-t2 (cc2) | 9.7 | 8.8–10.7 | 10.6 | 9.5–11.7 | 10.8 | 9.8–11.8 | NS |
| t4-t3 (s2) | 2.1 | 1.6–2.5 | 2.6 | 1.8–3.5 | 4.8 | 3.6–6.0 | < 0.05ab |
| t5-t3 (cc3) | 12.7 | 11.6–13.8 | 12.2 | 11.0–13.4 | 14.5 | 13.4–15.7 | < 0.05ab |
P value < 0.05 considered to be statistically significant
aTESE vs PESA bTESE vs CS cPESA vs CS