Table 1.
Robson’s group specific, group CSR (%)
| Robson’s group | Total delivery no (%) | Vaginal delivery with no (%) | Cesarean with no (%) | Group CSR (%) | CD risk ratio with 95 % CI | P value |
|---|---|---|---|---|---|---|
| 1 | 14,925 (37.23) | 11,128 (74.55) | 3797 (25.44) | 25.44 | 1.06 (0.981–0.052) | 0.175 |
| 2 | 903 (2.25) | 476 (52.71) | 427 (47.28) | 47.28 | 1.916 (1.785–2.057) | <0.001 |
| 3 | 13,107 (32.7) | 11,583 (88.37) | 1524 (11.62) | 11.62 | 0.366 (0.348–0.385) | <0.001 |
| 4 | 472 (1.17) | 308 (65.25) | 164 (34.74) | 34.74 | 1.386 (1.223–1.570) | <0.001 |
| 5 | 2656 (6.62) | 934 (35.16) | 1722 (64.83) | 64.83 | 2.899 (2.802–2.998) | <0.001 |
| 6 | 866 (2.16) | 277 (31.98) | 589 (68.01) | 68.01 | 2.806 (2.672–2.947) | <0.001 |
| 7 | 701 (1.74) | 353 (50.35) | 348 (49.64) | 49.64 | 2.006 (1.858–2.615) | <0.001 |
| 8 | 323 (0.8) | 204 (63.15) | 119 (36.84) | 36.84 | 1.468 (1.272–1.695) | <0.001 |
| 9 | 101 (0.25) | 00 (00) | 101 (100) | 100 | 4.001 (3.934–4.070) | <0.001 |
| 10 | 6032 (15.04) | 4730 (78.41) | 1302 (21.58) | 21.58 | 0.836 (0.794–0.880) | <0.001 |
| TOTAL | 40,086 | 29,993 | 10,093 |