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## A linear relationship was observed between FT and BPD, HC, AC, FL and CRL (P Forty-7 girls within ten–16 accomplished months of pregnancy had been hired. The latest indicate and fundamental deviation of the decades, gravidity and you can parity was basically 32.2±4.3 years, dos.3±step 1.5 and you will 0.7±0.eight, correspondingly. The fetal FT (mm) is plotted against the GA (weeks), as shown in Figure 2. The BPD, HC, AC, FL and CRL (mm) are plotted against FT in Figures 3–7, respectively. 001). The graphs of fetal FL to FT ratio against the FT and the GA are shown in Figures 8 and 9, respectively. The graph of the ratio of FL to AC against the GA is shown in Figure 10. The regression models for Figures 2–7 are shown within the legend for each figure and are summarized in Table 1. The Pearson coefficient is 0.992 for intraobserver correlation (P Figure 2 The graph of the estimated GA against the fetal FT.Notes: The estimated GA showed a positive linear relationship with fetal FT. The regression equation is as follows: GA (weeks) =0.335? FT (mm) +8.845. Adjusted R 2 =0.816, R=0.90, P Notes: This new Florida/Air-con ratio develops on GA in an inverse relationships Figure 3 The graph of fetal BPD against the FT.Notes: The fetal BPD showed a positive linear relationship with fetal FT. The regression equation is as follows: BPD (mm) =1.243? FT (mm) +7.539. Adjusted R 2 =0.945, R=0.97, P Figure 4 The graph of fetal HC against the FT. The regression equation is as follows: HC (mm) =4.407? FT (mm) +. Adjusted R 2 =0.95, R=0.97, P Notes: Brand new fetal HC showed a confident linear reference to fetal Foot Figure 5 The graph of fetal AC against the FT.Notes: The fetal AC showed a positive linear relationship with fetal FT. The regression equation is as follows: AC (mm) =3.835? FT (mm) +. Adjusted R 2 =0.943, R=0.97, P Figure 6 The graph of fetal FL against the FT.Notes: The fetal FL showed a positive linear relationship with fetal FT. The regression equation is as follows: FL (mm) =1.029? FT (mm) ?3.807. Adjusted R 2 =0.937, R=0.97, P Figure 7 The graph of the fetal CRL against the fetal FT.Notes: The fetal CRL showed a positive linear relationship with fetal FT. The regression equation is as follows: CRL (mm) =4.291? FT (mm) +. Adjusted R 2 =0.798, R=0.89, P Figure 8 The fetal FL/FT ratio against the FT.Notes: The FL/FT ratio increases in an inverse relationship with the FT. The ratio approaches 0.9 when the FL is around 25 mm. R 2 =0.49, R=0.7, P Figure 9 The graph of FL/FT ratio against the estimated GA.Notes: The FL/FT ratio increases with the estimated GA in an inverse relationship and reaches 0.9 at 17 weeks gestation. R 2 =0.516, R=0.72, P Figure 10 The FL/AC ratio against the GA. The ratio reaches 0.16 beyond 15 weeks gestation. R 2 =0.704, R=0.84, P Table step 1 The latest linear regression models anticipating fetal variables utilizing the foot-length given that predictor variableNote: The fetal details are counted from inside the millimeters and the projected gestational ages in weeks. The fetal FT showed a linear correlation with GA, BPD, HC, AC, FL and CRL between 10 and 16 weeks gestation (P

A linear relationship was observed between FT and BPD, HC, AC, FL and CRL (P<0

Forty-7 girls within ten–16 accomplished months of pregnancy had been hired. The latest indicate and fundamental deviation of the decades, gravidity and you can parity was basically 32.2±4.3 years, dos.3±step 1.5 and you will 0.7±0.eight, correspondingly.

The fetal FT (mm) is plotted against the GA (weeks), as shown in Figure 2. The BPD, HC, AC, FL and CRL (mm) are plotted against FT in Figures 3–7, respectively. 001). The graphs of fetal FL to FT ratio against the FT and the GA are shown in Figures 8 and 9, respectively. The graph of the ratio of FL to AC against the GA is shown in Figure 10. The regression models for Figures 2–7 are shown within the legend for each figure and are summarized in Table 1. The Pearson coefficient is 0.992 for intraobserver correlation (P<0.001) and 0.990 for interobserver correlation (P<0.001) in the measurement of fetal FT.

Figure 2 The graph of the estimated GA against the fetal FT.Notes: The estimated GA showed a positive linear relationship with fetal FT. The regression equation is as follows: GA (weeks) =0.335? FT (mm) +8.845. Adjusted R 2 =0.816, R=0.90, P<0.001.Abbreviations: FT, foot length; GA, gestational age.

## Notes: This new Florida/Air-con ratio develops on GA in an inverse relationships

Figure 3 The graph of fetal BPD against the FT.Notes: The fetal BPD showed a positive linear relationship with fetal FT.