WHO 2015

Robson 10-Group

CS classification (WHO)

Clinician mode

Result

1

Robson Group 1

Nullip, ≥37/40, cephalic, spontaneous labour

  • WHO recommends every unit audits CS rate by Robson group, not overall %.
  • Group 5 (prev CS, term, cephalic) is the largest contributor to rising CS rates — focus VBAC counselling here.

Reference range

10 mutually-exclusive groups; classify prospectively at delivery.

Common pitfalls

  • Group 5 drives most CS-rate increases — focus VBAC counselling here.
  • Classify BEFORE mode of delivery is decided for prospective audit.

For educational use only

Not medical advice. Verify dosing against the BNF and your local trust guidelines before prescribing.