Variables | Non standardized coefficient B | Standard error | Standardized coefficient β | t | P | 95% Confidence interval |
---|---|---|---|---|---|---|
Constant | 30.288 | 2.066 | – | 14.664 |  < 0.001 | 26.223 ~ 34.353 |
Repeated IVF-ET | − 0.859 | 0.141 | − 0 0.291 | − 6.095 |  < 0.001 | − 1.136 ~ − 0.581 |
MAT | 0.045 | 0.009 | 0.288 | 5.266 |  < 0.001 | 0.028 ~ 0.062 |
SSRS | 0.117 | 0.031 | 0.198 | 3.802 |  < 0.001 | 0.057 ~ 0.178 |
Age | − 0.223 | 0.059 | − 0.242 | − 3.779 |  < 0.001 | − 0.339 ~ -0.107 |
Marriage age | 0.275 | 0.064 | 0.274 | 4.306 |  < 0.001 | 0.150 ~ 0.401 |
Monthly income | 0.516 | 0.220 | 0.114 | 2.349 | 0.020 | 0.084 ~ 0.949 |
Education level | 1.474 | 0.478 | 0.147 | 3.081 | 0.002 | 0.532 ~ 2.416 |