Table III.
Comparison of transvaginal sonography and hormonal response, and endometrium between groups and subgroups.
| Variable | No. patients (n) | Mean ± SD | Range | Subgroup (n) | Mean ± SD | P-value |
|---|---|---|---|---|---|---|
| 1st IVF cycle | ||||||
| Follicles >10 mm at GnRH- ant administration (n) | 40 | 3.3±1.42 | 1-6 | A1 (10) | 4.1±1.29a | <0.001 |
| A2 (10) | 2.1±0.74b | |||||
| B1 (10) | 4.5±0.85c | |||||
| B2 (10) | 2.5±1.08d | |||||
| Total follicles at hCG administration (n) | 40 | 5.9±1.96 | 3-9 | A1 (10) | 6.0±2.00 | n.s. |
| A2 (10) | 5.2±1.75 | |||||
| B1 (10) | 7.2±1.75 | |||||
| B2 (10) | 5.1±1.85 | |||||
| Follicles >16 mm at hCG administration (n) | 40 | 2.9±1.37 | 1-6 | A1 (10) | 3.2±1.13e | <0.001 |
| A2 (10) | 2.2±0.79f | |||||
| B1 (10) | 4.5±1.08g | |||||
| B2 (10) | 2.0±0.81h | |||||
| Serum value of 17β estradiol at hCG day (nmol/l) | 40 | 5.1±1.78 | 2.45-9.05 | A1 (10) | 4.3±1.11i | <0.001 |
| A2 (10) | 3.9±0.69j | |||||
| B1 (10) | 7.7±0.94k | |||||
| B2 (10) | 4.3±0.81l | |||||
| Serum value of progesterone at hCG day (nmol/l) | 40 | 3.0±0.75 | 1.59-4.76 | A1 (10) | 2.2±0.32m | <0.001 |
| A2 (10) | 3.2±0.60n | |||||
| B1 (10) | 3.0±0.50o | |||||
| B2 (10) | 3.6±0.64p | |||||
| Endometrial thickness at retrieval (mm) | 40 | 11.8±1.49 | 11.3-12.2 | A1 (10) | 10.2±0.41q | <0.001 |
| A2 (10) | 11.5±0.74r | |||||
| B1 (10) | 11.4±0.93s | |||||
| B2 (10) | 13.8±0.68t | |||||
| 2nd IVF cycle | ||||||
| Follicles >10 mm at GnRH- ant administration (n) | 35 | 3.4±1.40 | 1-6 | A1 (8) | 4.0±1.60a | <0.01 |
| A2 (8) | 2.4±1.06b | |||||
| B1 (10) | 4.4±0.85c | |||||
| B2 (9) | 2.9±0.78d | |||||
| Total follicles at hCG administration (n) | 35 | 6.4±1.54 | 3-9 | A1 (8) | 6.5±1.51 | n.s. |
| A2 (8) | 6.2±1.49 | |||||
| B1 (10) | 6.8±1.32 | |||||
| B2 (9) | 6.1±1.96 | |||||
| Follicles >16 mm at hCG administration (n) | 35 | 3.2±1.35 | 1-6 | A1 (8) | 3.5±1.07e | <0.001 |
| A2 (8) | 2.5±0.75f | |||||
| B1 (10) | 4.6±1.07g | |||||
| B2 (9) | 2.1±0.78h | |||||
| Serum value of 17β estradiol at hCG day (nmol/l) | 35 | 4.9±1.55 | 1.60-8.10 | A1 (8) | 5.0±1.37i | <0.01 |
| A2 (8) | 4.0±1.15j | |||||
| B1 (10) | 6.1±1.20k | |||||
| B2 (9) | 4.2±1.57l | |||||
| Serum value of progesterone at hCG day (nmol/l) | 35 | 3.1±0.76 | 1.52-4.35 | A1 (8) | 2.3±0.48m | <0.001 |
| A2 (8) | 3.1±0.56n | |||||
| B1 (10) | 2.9±0.57o | |||||
| B2 (9) | 4.0±0.24p | |||||
| Endometrial thickness at retrieval (mm) | 35 | 11.9±1.58 | 11.3-12.5 | A1 (8) | 10.4±1.01q | <0.001 |
| A2 (8) | 11.2±1.00r | |||||
| B1 (10) | 12.1±1.10s | |||||
| B2 (9) | 13.7±1.09t |
1st IVF cycle Bonferroni post-hoc test: P<0.01, a vs, b,d; P<0.001, b vs, c; P<0.01, c vs, d; P<0.001, e vs, g,h; P<0.05, e vs, f; P<0.001, k vs, i,j,l; P<0.001, m vs, n,p; P<0.01, m vs, o; P<0.01, q vs r,s; P<0.001, q vs, t; P<0.001, r vs, t; P<0.001, s vs, t. 2nd IVF cycle Bonferroni post-hoc test: P<0.001, b vs, c; P=0.054, a vs, b,c,d; P<0.001, e vs g,h; P<0.05, f vs, h; P<0.05, k vs, j,l; P<0.001, p vs, m,o; P<0.01, p vs, n; P<0.05, n vs, m; P<0.001, t vs, q,r; P<0.05, t vs, s; P<0.05, q vs, s. IVF, in vitro fertilization; SD, standard deviation; n.s., not significant.