Table 1

Patient age and HbA1c characteristics within tested community-based, emergency department and inpatient participant groups*

Community-based (n=1126)Emergency (n=1061)Inpatient (n=2114)
Age (years)
 Mean (±SD)51.8 (±17.1)49.5 (±20.5)59.2 (±19.1)
 Median524761
 Range18–9218–9818–97
HbA1c (%)†
 Mean (±SD)5.4 (± 0.4)5.5 (± 0.5)5.6 (±0.5)‡
 Median5.45.55.6
 Range3.7–8.94.0–10.33.2–12.2
HbA1c (mmol/mol)†
 Mean (±SD)36 (±5)37 (±5)38 (±6)‡
 Median363738
 Range17–7120–8911–110
Mean (±SD) of age (years) of patients with HbA1c % (mmol/mol)
 <5.7 (<39)48.5 (±16.8)44.2 (±18.8)54.7 (±19.8)
 5.7–5.9 (39–41)60.7 (±13.6)59.9 (±18.9)63.4 (±17.8)
 6.0–6.4 (42–47)63.1 (±15.3)64.1 (±19.5)66.7 (±14.5)
 ≥6.5 (≥48)59.5 (±10.2)65.0 (±18.1)67.7 (±15.6)
  • *Tested patients subsequently found to have previously known diabetes were excluded from this analysis.

  • †Data are dually reported in the traditional NGSP % haemoglobin and the new recommended IFCC mmol/mol format.

  • ‡IP HbA1c results were found to be significantly greater than CB across the age range (p<0.001).

  • CB, community based; HbAlc, glycated haemoglobin; IP, inpatient.