Table 1

Categories used to determine diabetes status in the ccCHiP cohort

LevelDiagnostic categoryNPer cent
1HbA1c ≥6.5%17554.3
2FPG ≥7 mmol/L and a previous diagnosis of diabetes or FPG ≥7 mmol/L and receiving antihyperglycemic medication278.4
3FPG ≥7 mmol/L and no previous diagnosis of diabetes3611.2
4Receiving treatment with insulin therapy20.6
5Receiving metformin and a previous diagnosis of diabetes6620.5
6Receiving antihyperglycemic medication other than metformin165.0
  • ccCHiP, Collaborative Centre for Cardiometabolic Health in Psychosis; FPG, fasting plasma glucose; HbA1c, hemoglobin A1c.