[Table/Fig-4]:
Regression analysis between LMP and with other parameter depicting with p values and regression analysis values. aDependent Variable: LMP
| Trimester | Parameters | Unstandardized coefficients | Standardized coefficients | p value | r2 | ||
|---|---|---|---|---|---|---|---|
| B | Std Error | Beta | |||||
| Second trimester | With AC | (Constant parameter) | -0.374 1.026 | 0.419 0.020 | 0.991 | 0.376 0.0004 | 0.983 |
| With TCD | (Constant parameter) | 0.418 0.985 | 0.254 0.012 | 0.997 | 0.106 0.0001 | 0.993 | |
| With BPD | (Constant parameter) | 0.486 0.971 | 0.392 0.018 | 0.992 | 0.221 0.0003 | 0.984 | |
| With FL | (Constant parameter) | 0.506 0.973 | 0.337 0.016 | 0.994 | 0.140 0.0002 | 0.988 | |
| With HC | (Constant parameter) | 0.530 0.977 | 0.326 0.015 | 0.994 | 0.111 0.0002 | 0.989 | |
| With AVERAGE | (Constant parameter) | 0.073 0.995 | 0.284 0.013 | 0.996 | 0.798 0.0002 | 0.992 | |
| Third trimester | With AC | (Constant parameter) | -0.619 1.048 | 1.232 0.037 | 0.972 | 0.618 0.0008 | 0.944 |
| With TCD | (Constant parameter) | -2.327 1.087 | 1.043 0.031 | 0.981 | 0.030 0.0006 | 0.963 | |
| With BPD | (Constant parameter) | -2.772 1.110 | 1.540 0.046 | 0.961 | 0.078 0.0009 | 0.924 | |
| With FL | (Constant parameter) | -0.422 1.024 | 1.008 0.030 | 0.981 | 0.677 0.0006 | 0.962 | |
| With HC | (Constant parameter) | -2.324 1.097 | 1.678 0.050 | 0.954 | 0.172 0.0009 | 0.908 | |
| With AVERAGE | (Constant parameter) | -1.5257 1.064 | 1.085 0.032 | 0.979 | 0.166 0.0007 | 0.958 | |
*LMP-Last Menstrual Period, HC-Head Circumference, AC-Abdominal Circumference, FL-Femur Length, BPD-Biparietal Diameter, TCD-Transcerebellar Diameter.