Table 2

Differences in response between two drugs and two strata in the crossover trial

Patient groupDrug ADrug BDifference
In strata (S)HbA1cSAHbA1cSBHbA1cSA−HbA1cSB
Not in strata (N)HbA1cNAHbA1cNBHbA1cNA−HbA1cNB
  • The null hypothesis is that the difference in achieved HbA1c for the two drugs will be similar for the two groups of participants (ie, HbA1cSA−HbA1cSB=HbA1cNA−HbA1cNB).

  • HbA1c, glycated haemoglobin.