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. 2015 Jul 21;66(Suppl 1):1–6. doi: 10.1007/s13224-015-0738-1

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