Table 4. Correlation between gestational age and fetal heart rate parameters.
| InteractionP-Value1 | Group Difference2 | Linear Relationship3 | |||
|---|---|---|---|---|---|
| Estimate (95% CI) | P-Value | Estimate (95% CI) | P-Value | ||
| bFHR (bpm) | 0.840 | 1.5 (-1.8, 4.8) | 0.375 | -0.8 (-1.4, -0.3) | 0.003 |
| STV (ms) | 0.653 | 1.0 (-6.1, 2.6) | 0.224 | -0.03 (-0.3, 0.2) | 0.814 |
| LTV (ms) | 0.687 | 4.2 (-3.5, 11.9) | 0.286 | 0.1 (-1.1, 1.3) | 0.828 |
| Accelerations (number) | 0.516 | 6.4 (4.0, 8.6) | <0.001 | 0.3 (-0.1, 0.6) | 0.113 |
| HV (ms) | 0.700 | 1.4 (-7.9, 10.8) | 0.765 | 0.1 (-1.5, 1.7) | 0.896 |
1 P-Value for interaction between gestational age and group
2 Comparison between AGA and SGA groups. A positive value indicates that on average the AGA group have larger measurements
3 Change in heart rate parameter per 1 week increase in gestational age