| Criteria | Evaluation periods | ||||
| January 2020 (%) | July 2020 (%) | February 2021 (%) | August 2021 (%) | March 2022 (%) | |
| The level of presentation engagement is noted at each examination. | 23.5 | 56.6 | 73 | 79.2 | 84.2 |
| Fetal heart rate (FHR) is noted at each reassessment during the latent phase. | 11.2 | 59.3 | 63.6 | 3.1 | 0 |
| FHR is noted at each reassessment during the active phase. | 48 | 76.7 | 85.2 | 91.7 | 91.1 |
| FHR annotations are linked by a curve. | 36.7 | 64.9 | 78.9 | 72.9 | 80.3 |
| Evaluation of contractions is noted at each examination: during the latent phase. | 7.1 | 48 | 57.1 | 1 | 100 |
| During the active phase. | 42.9 | 76.3 | 87.8 | 88.5 | 95.2 |
| The status of the water sac on admission is noted. | 79.6 | 95 | 96.6 | 96.9 | 97.9 |
| The state of the membranes is noted at each examination until rupture of the membranes. | 33.7 | 78.5 | 87 | 78.1 | 97.3 |
| The date and time of membrane rupture are noted. | 43.9 | 69.3 | 72.4 | 65.6 | 78.5 |
| The appearance of the amniotic fluid is noted on admission or at rupture. | 45.9 | 78.1 | 86.3 | 88.5 | 93.2 |
| The appearance of the amniotic fluid is noted at each examination. | 26 | 78.1 | 75 | 71.9 | 93.3 |
| Cervical length (effacement) on admission is noted. | - | - | 97.8 | 97.9 | 96.9 |
| Cervical dilatation on admission is noted. | 86.7 | 92.6 | 98.9 | 96.9 | 96.9 |
| The search for cervical edema is recorded. | 8.2 | 0 | 49.4 | 44.8 | 51 |
| Cervical dilatation is noted at each examination: during the latent phase. | 10.2 | 62.2 | 80 | 1 | 50 |
| During the active phase. | 58.2 | 78.4 | 89.5 | 90.6 | 93 |
| The dilation annotations are linked by a curve during the active phase. | 42.9 | 51 | 69.8 | 68.8 | 73.2 |
| The time of complete dilation is noted. | 0 | 0 | 83.7 | 87.5 | 89.4 |