Research Article
The Ten-Group Robson Classification: A Single Centre Approach Identifying Strategies to Optimise Caesarean Section Rates
Table 1
Rate of Caesarean section by the Ten-Group Robson classification.
| | Relative size of groups (% of total number of births) | CS rate in each group (% of number of women in each group) | Contribution made by each group to the overall CS rate % |
| (1) Nulliparous, single cephalic, 37 weeks, spontaneous labour | 18.6% | 58/489 (11.9%) | 2.2% | (2) Nulliparous, single cephalic, 37 weeks | 10.3% | 76/270 (28.1%) | 2.9% | (a) Induced | 9.8% | 63/257 (24.5%) | 2.4% | (b) CS before labour | 0.5% | 13/13 (100%) | 0.5% | (3) Multiparous, single cephalic, 37 weeks, spontaneous labour | 34.4% | 26/902 (2.9%) | 1.0% | (4) Multiparous, single cephalic, 37 weeks | 13.8% | 60/361 (16.6%) | 2.3% | (a) Induced | 12.2% | 20/321 (6.2%) | 0.8% | (b) CS before labour | 1.5% | 40/40 (100%) | 1.5% | (5) Previous CS, singleton cephalic, 37 weeks | 14.3% | 287/375 (76.5%) | 10.9% | (a) Spontaneous labour | 4.5% | 54/119 (45.4%) | 2.1% | (b) Induced | 1.2%
| 9/32 (28.1%) | 0.3% | (c) CS before labour | 8.5% | 224/224 (100%) | 8.5% | (6) All nulliparous breeches | 0.9% | 21/23 (91.3%) | 0.8% | (a) Spontaneous labour | | 5/6 | | (b) Induced | | 0/1 | | (c) CS before labour | | 16/16 | | (7) All multiparous breeches | 1.1% | 26/29 (89.7%) | 1.0% | (a) Spontaneous labour | | 9/11 | | (b) Induced | | 0/1 | | (c) CS before labour | | 17/17 | | (8) All multiple pregnancies | 1.4% | 20/38 (52.6%) | 0.8% | (a) Spontaneous labour | | 7/15 | | (b) Induced | | 3/13 | | (c) CS before labour | | 10/10 | | (9) All abnormal lies | 0.5% | 14/14 (100%) | 0.5% | (a) Spontaneous labour | | 5/5 | | (b) Induced | | 4/4 | | (c) CS before labour | | 5/5 | | (10) All singleton cephalic, 36 weeks | 4.7% | 30/124 (24.2%) | 1.1% | (a) Spontaneous labour | | 9/67 | | (b) Induced | | 3/39 | | (c) CS before labour | | 18/18 | |
| Total | 100% | 618/2685 | 23.5% |
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Groups 7–10 include women with previous CS.
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