| Table 4. Linear regression models of the effect of FSH dose on laboratorial outcomes, at different maternal age intervals. |
| Group |
≤35 years old |
36-38 years old |
39-40 years old |
>40 years old |
| Variable |
RC |
p |
RC |
p |
RC |
p |
RC |
p |
| Laboratory outcomes |
| Fertilization rate |
-0.001 |
NS |
0.000 |
NS |
0.001 |
NS |
-0.002 |
NS |
| High quality D3 embryos |
-0.001 |
NS |
0.000 |
NS |
0.000 |
NS |
0.000 |
NS |
| High quality Embryo rate |
-0.005 |
<0.01 |
-0.006 |
0.025 |
0.002 |
NS |
-0.002 |
NS |
| Blastocyst formation rate |
-0.005 |
<0.01 |
-0.007 |
0.042 |
0.004 |
NS |
-0.004 |
NS |
| Transferred embryos |
0.000 |
<0.01 |
0.000 |
NS |
0.000 |
NS |
0.000 |
NS |
| Endometrium |
0.000 |
NS |
0.000 |
NS |
0.001 |
NS |
0.000 |
NS |
| Note: RC: regression coefficient, NS: non-significant (p>0.05). |