Table 2 Distribution of CS rates according to the 10-group Robson classification system
From: Effects of the COVID-19 pandemic on perinatal outcomes: a retrospective cohort study from Turkey
Pre-pandemic, 2019 (Total birth = 1,141,385, total CS = 658,682, CS rate = 57.7%) | During-pandemic, 2020 (total birth = 1,078,529, total CS = 649,572, CS rate = 60.2%) | p | |||||
|---|---|---|---|---|---|---|---|
Total birth n, % | CS rate n, % | Contribution made by each group to the total CS rate, % | Total birth n, % | CS rate n, % | Contribution of each to total CS rate, % | CS rate; 2019 vs. 2020 | |
1. Nulliparous, single cephalic, ≥37 weeks spontaneous labor | 286,498 25.1% | 150,105 52.4% | 13.2 | 275,546 25.5% | 159,345 57.8% | 14.8 | < 0.001 |
2. Nulliparous, single cephalic, ≥37 weeks. Induced or CS before labor | 45,696 4.0% | 21,762 47.6% | 1.9 | 39,825 3.7% | 19,788 49.7% | 1.8 | < 0.001 |
3. Multiparous (excluding previous CS), single cephalic, ≥37 weeks. Spontaneous labor | 294,844 25.8% | 42,575 14.4% | 3.7 | 272,994 25.3% | 44,118 16.2% | 4.1 | < 0.001 |
4. Multiparous (excluding previous CS), single cephalic, ≥37 weeks. Induced or CS before labor | 39,728 3.5% | 6854 17.3% | 0.6 | 36,102 3.3% | 6494 18.0% | 0.6 | < 0.001 |
5. Previous CS, single cephalic, ≥37 weeks | 271,131 23.8% | 266,110 98.1% | 23.3 | 260,971 24.2% | 256,549 98.3% | 23.8 | < 0.001 |
6. All nulliparous breeches | 28,900 2.5% | 28,451 98.4% | 2.5 | 28,477 2.6% | 28,058 98.5% | 2.6 | 0.420 |
7. All multiparous breeches (including previous CS) | 28,471 2.5% | 27,569 96.8% | 2.4 | 26,463 2.5% | 25,574 96.6% | 2.4 | 0.207 |
8. All multiple pregnancies (including previous CS) | 38,087 3.3% | 35,438 93.0% | 3.1 | 33,650 3.1% | 31,605 93.9% | 2.9 | < 0.001 |
9. All abnormal lies (including previous CS) | 19,328 1.7% | 19,210 99.4% | 1.7 | 19,303 1.8% | 18,362 95.1% | 1.7 | < 0.001 |
10. All single cephalic, ≤36 weeks (including previous CS) | 88,702 7.8% | 60,608 68.3% | 5.3 | 85,198 7.9% | 59,682 70.1% | 5.5 | < 0.001 |