Table 2.
Relationship between the volume of follicular fluid that was aspirated from individual follicles and oolemma stretchability during intracytoplasmic sperm injection
| Variable | Volume of follicular fluid that was aspirated from an individual follicle (mL) | P‐value | |||||
|---|---|---|---|---|---|---|---|
| Group A | Group B | Group C | Group D | Group E | Group F | ||
| (<1.0) | (1.0‐<2.0) | (2.0‐<3.0) | (3.0‐<4.0) | (4.0‐<5.0) | (≥5.0) | ||
| No. of MII oocytes | 48 | 77 | 102 | 78 | 62 | 48 | – |
| Patient age (years) | 37.6 ± 4.0 | 37.6 ± 4.1 | 37.3 ± 3.9 | 37.0 ± 4.3 | 37.1 ± 3.9 | 37.4 ± 3.9 | .964 |
| High oolemma stretchability | 39 (81.3)* | 72 (93.5) | 97 (95.1) | 75 (96.2) | 58 (93.5) | 46 (95.8) | .022 |
| COC grade | |||||||
| 1 | 16 (41.0) | 16 (22.2) | 22 (22.7) | 26 (34.7) | 19 (32.8) | 12 (26.1) | .155 |
| 2 | 20 (51.3) | 46 (63.9) | 62 (63.9) | 42 (56.0) | 30 (51.7) | 26 (56.5) | .516 |
| 3 | 3 (7.7) | 10 (13.9) | 13 (13.4) | 7 (9.3) | 9 (15.5) | 8 (17.4) | .692 |
| Low oolemma stretchability | 9 (18.8)* | 5 (6.5) | 5 (4.9) | 3 (3.8) | 4 (6.5) | 2 (4.2) | .022 |
| COC grade | |||||||
| 1 | 3 (33.3) | 2 (40.0) | 2 (40.0) | 0 (.0) | 2 (50.0) | 1 (50.0) | .806 |
| 2 | 5 (55.6) | 3 (60.0) | 2 (40.0) | 2 (66.7) | 2 (50.0) | 1 (50.0) | .983 |
| 3 | 1 (11.1) | 0 (.0) | 1 (20.0) | 1 (33.3) | 0 (.0) | 0 (.0) | .642 |
COC, cumulus‐oocyte complex; MII, metaphase II.
Values are presented as N (%) or mean ± standard deviation. The mean age of the patients was evaluated by using the Tukey–Kramer post‐hoc test. The rates of oolemma stretchability and COC grades were evaluated by using the chi‐square test and residual analysis. A P‐value of <.05 was considered to be statistically significant.
*P < .05.