Table 1

Results from the two-round Delphi process

Physiological systemPotentially serious interactions as listed in the BNFRound 1Round 2Final criteria
TotalAcceptReviseRejectRemovalNew statements includedTotalAcceptReviseReject
Cardiovascular system114113032127059
Respiratory system011000000001
Central nervous system412660151050515
Infections250503021013
Endocrine system053200022005
Obstetrics, gynaecology and urinary tract disorders020201120020
Malignant disease and immunosuppression110100011002
Nutrition and blood010101000000
Musculoskeletal system032100011003
Total8441331098301701338
  • BNF, British National Formulary